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Articles from 2001 In August


Enterprise engineering management software is an industry first

Enterprise engineering management software is an industry first

How do large companies with 500 to 30,000 engineers manage their product development organization? How do managers and engineers find peers with specific skill sets to avoid reinventing wheels that have already been designed? How do they ensure that necessary administrative processes are being followed, and keep track of the countless interactions and deliverables between project teams?

"There really hasn't been anything out there for handling enterprise engineering management," says Rob Vonderhaar. "There is PeopleSoft for human resources and SAP for finance, but nothing comprehensive for the engineering department, until now," he adds.

Vonderhaar is the vice-president of marketing for Intersect Software. The start-up company is readying the release of its new enterprise engineering management (EEM) software that it says addresses these problems while delivering the first complete operational history for the engineering function.

The goal is to help engineers bring new products to market faster by improving their efficiency. "It includes an engineering yellow pages for easy identification and communication with people having specific skills or experience," says Vonderhaar. "It also automates mundane administrative tasks, freeing engineers to be engineers."

The EEM software manages information sharing among product development teams and across team boundaries, and is currently being tested by several companies with large engineering organizations. The product is planned for release by the end of the year. For more information, e-mail [email protected] or visit www.intersectsoft.com.

Product News

Product News

Accelerometer mount

Model 608A11 low-cost industrial accelerometer with integral cable is said to ease the permanent installation of vibration sensors onto critical machinery components or into inaccessible locations. Options include accessory hardware including swivel mounted studs and collars for ease of installation and removal for testing, verification and calibration without disturbing the cable.

PCB Piezotronics, www.pcb.com
Enter 646

Piezoelectric accelerometer

Isotron(R) Series 65 is a miniature tri-axial piezoelectric accelerometer with integral electronics, designed specifically to measure modal responses in three orthogonal axes simultaneously on lightweight structures. The product is adhesive-mounted and is also said to offer high output sensitivity, high resolution, a frequency response of 1-6 kHz, and low impedance output in extreme environments.

Endevco Corp., www.endevco.com
Enter 647

Chipset

The VSC8185 16:1 multiplexer and VSC8184 1:16 demultiplexer provide a feature-rich chipset that operates from 11.5 to 12.5 Gbytes/sec to support high-gain Forward Error Correction (FEC) operations. The VSC8184 and VSC8185 enable telecommunication equipment providers to serialize and de-serialize high-gain FEC data streams for ultra-long haul DWDM applications. These devices use a single 3.3V power supply and dissipate less than 3.5W of power for the total chipset.

Vitesse Semiconductor Corp., www.vitesse.com
Enter 648

Spectrometers

M2000 series laboratory spectrometers are said to be durable and reliable instruments for use in general purpose spectroscopy, quality assurance and quality control measurements, service labs, and academic applications. The product is said to provide 0.5 cm-1 resolution, a choice of DTGS, MCT, or dual detectors, and industry standard GRAMS/32 software from Galactic.

Midac Corp., www.midac.com
Enter 649

Power factor correction

Designed specifically for use in high-performance OEM servo applications, PFC300X series high-voltage, high-capacity Power Factor Correction modules attenuate ac line harmonics induced by switching power amplifiers, and prevent overloading of neutral conductors and transformers. The devices measure 8.68 x 8.400 x 4.130 inches, have an input range from 185 to 240V ac-rms 50/60 Hz, and output a dc-regulated bus from 395 to 420V dc maximum.

Automotion Inc, www.automotioninc.com
Enter 650

Vision sensor

F150-3 Vision sensor provides a two-camera measuring capability at a low cost. Features include a vision sensor with an intelligent light source which allows the user to set light intensity and direction during inspection routines for more accurate inspections, while Windows(R)-based configuration software is said to help users quickly and easily set up powerful and flexible inspection programs.

Omron Electronics Inc, www.info.omron.com
Enter 651

CMM controller

This company's UCC1 Universal CMM controller is said to optimize the CMM/probe interface for maximum part check speed and accuracy in both OEM and retrofit applications. Features include a flexible controller which allows CMMs to operate in three modes: standard touch-trigger, digitizing with analog probes, and full high-speed scanning, while advanced scanning algorithms are said to allow fast, accurate, adaptive part scanning.

Renishaw, www.renishaw.com
Enter 652

Pressure transducers

This company's 80HP hermetic pressure transducers are the latest addition to their line of industrial sensors. The products are said to be media compatible, amplified, and designed for applications such as plant automation and control, hydraulics and pneumatics, compressor and pump controls, alternative power solutions, HVACR, and construction equipment.

Texas Instruments Inc., www.ti.com
Enter 653

Thickness probe

ERCu measurement probes are designed to measure copper coating thickness on laminates and multilayers without being affected by the copper coating on the opposite side. The product uses the electrical resistance method of measurement and is designed to work with the company's Multi Measurement System (MMS(R)) instruments for measuring coating thickness on printed circuit boards.

Fischer Technology, www.fischer-technology.com
Enter 654

Proximity sensors

GMR series magnetic proximity sensors are based on giant magnetoresistive technology, and are said to be highly sensitive for rugged use in harsh or high-temperature applications such as industrial equipment and off-highway vehicles. The product is said to yield a large air gap between the sensor and the magnet, and uses an omnipolar sensing element which allows the sensor to activated by either the north or south pole of the magnet.

Cherry Electrical Products ,www.cherrycorp.com
Enter 655

Temperature switch

THR series temperature switches are designed for use in heavy industrial environments. Measuring 3 x 4.5 x 5.62 inches, the switches feature a high anodized cast aluminum housing which is said to provide NEMA 4 protection. The products are single setting, while set point is field-adjustable with a robust knob and a large, easy to read calibrated dial set inside a tamper-proof cover.

Barksdale, www.barksdale.com
Enter 656

Hazmat response kit

Deluxe HazMat Kit III is said to offer a two-step approach to identifying unknown airborne compounds through the use of detector tubes. Step 1 uses two multilayered qualitative tubes and a color chart to reportedly identify more than 70 compounds in under three minutes. Step 2 involves another 13 detector tubes and a decision-tree style logic chart to further qualify the results of the first step.

Sensidyne, www.sensidyne.com
Enter 657

Component inspection

NXR-130 ultra high-resolution X-ray-based failure analysis system is said to provide fast, high quality, real-time images for failure analysis of components on PCBs. The product is said to have a 230x magnification capability, an 8mu focal spot, and X-ray source to 120 kV for inspecting the smallest assemblies. Also featured is 5-axis control, which can be used alone or with the standard rotate and tilt positioner.

Nicolet Technologies, www.niti.com
Enter 658

Protective Polymer

Protective Polymer

Iowa State University professor Vladimir Tsukruk developed a unique polymer coating for micro-electromechanical systems. He uses an electrostatic process that forms a "self-assembling" coating measuring less than ten nm thick that contains both flexible and hard layers. Tsukruk says the coating has low friction and a longer life span than existing single-layer polymers. For more information, contact Tsukruk at (515) 294-6904.

Measuring a trillionth of one second

Measuring a trillionth of one second

When Sandia National Laboratory engineer Ken Condreva wanted to record critical timing signals in weapons test flights, he couldn't find anything that worked, so he invented his own device. His invention is an integrated circuit that uses a patented "Pulse Stretcher" technique for increasing resolution of timing signals. He lengthens the duration of the output signal, making it last 64 to 200 times longer than the input signal. The process is similar to recording a sporting event with fast-action film and replaying it at slow motion to clearly see what happened. Potential applications exist in assembly and manufacturing operations, liquid-level measurement in chemical and processing plants, and collision detection and avoidance systems, according to Sandia Business Developer Scott Vaupen. He notes that the lab is seeking commercialization partners. If interested, contact him at (925) 294-2322 or [email protected].

Data acquisition is 'First Mate'

Data acquisition is 'First Mate'

St. Lucia, Windward Islands-Our new boat, a Freedom 40/40, is named "Full Monty," because my wife, Karen, and I gave up our home and all connections to land in order to buy and live on it.

As a two-person crew, we need all the help we can get from reliable electronics to monitor the vessel, and data collection and control can play an instrumental role on a cruising sailboat. Although the boat's major systems, such as engine, batteries, inverter, GPS, autopilot, and radar, are commercial products, I created a number of secondary systems, developing first those that I needed most desperately. High on the list were enabling technologies, such as relays that could be used to allow a data acquisition module to control heavy electrical loads. I also gave high priority to power measurement and control, since there is no point using a computerized system if there is not enough power for a Dell Inspiron 7500 laptop.

Since data acquisition boards cannot be inserted into a laptop, I use Data Translation's DT9806 module, which offers a USB connection, to acquire raw electrical signals. The fact that the board is robust, small, and consumes very little power makes it ideal for a boat.

I needed a program that would collect, log, retrieve, display data, and control boat systems as required. I wrote my own program, called BoatMinder, in C++.

Batteries and nature. Full Monty has one battery for engine starting and a bank of four for the living quarters. I installed a Heart Interface Link 20 system for battery management. The Link senses the voltage and current draw and computes the state of charge. When we are connected to shore power, we can switch on an ac-powered battery charger. But as Karen and I enjoy the peace and quiet of sailing without the engine running when we're well away from shore, we have to rely on alternative ways of generating electricity.

First up, I installed a Ferris wind generator. To monitor wind generator power, as well as current, an analog input channel is dedicated to the battery voltage, sensed via a fused line at the battery terminal. We plan to use a Ferris tow-behind generator with a second regulator shared by solar panels.

Full Monty has on board eight solar panels of various sizes, with a total active area of 52 ft2. Negative lines from the solar panels are brought all the way to the distribution center so I can monitor the solar power separate from other sources. The theoretical total current from the solar panels is 20.7A; here at latitude 14 degrees north, we have already seen close to that.

Oil and water. The Freedom 40/40 comes with a fuel gauge with a float. Since the gauge is located underneath the mattress in the aft cabin, it is a great advantage to have a remote readout.

For drinking water, float type fuel level sensors would not work in water-they would corrode and have incorrect buoyancy. So I surrounded a metal rod with a thin plastic sheath that could be inserted into the water through a watertight plate on top of the tank. The electrical capacitance between this rod and the water is then a measure of the water level in the tank.

While chlorine has been used to purify drinking water, there is a school of thought that oxidation by means of ozone is safer because it does not produce carcinogens. On board Full Monty a 12V pump forces air past an ultraviolet lamp inside a stainless steel housing. The radiation produces ozone. The system consumes about 30W, and intermittent operation, say four hours every day, is suitable. BoatMinder can preferentially turn the unit on when there is ample solar or wind power.

Some devices require that small digital output signals from the DT9806 be fed to a series of relays so that larger currents can be controlled. One is the refrigerator/freezer-the biggest energy consumer on board. BoatMinder ensures that it comes on only when ample power is coming in from sun and wind, or it is getting dangerously warm. Using power while it is being generated is more efficient because there is a loss when energy is stored in the batteries. BoatMinder also makes sure that the reefer does not accidentally stay on long enough to flatten the batteries.

Happy is the sailor who can see at a glance that he or she has plenty of diesel, wind, speed, pure water, electricity, water under the keel, and distance from dangerous shores. Happy is the sailor who can rely on his or her data acquisition systems to do the hard work.

For more information about data acquisition modules from Data Translation: Enter 537

Moore hits hurdles

Moore hits hurdles

Santa Clara, CA-As the dot-com bubble bursts, investors' soaring expectations for the "new economy" are coming back to Earth. Wary of the promises of software and Internet companies, they are concentrating more on hardware, storage, and processing.

This is good news for chip makers, but it comes at an awkward time. Since 1965, the microprocessor industry has lived by Gordon Moore's famous dictum that the number of transistors on computer chips will double every 18 to 24 months. And indeed, there were 2,300 transistors on Intel's 4004 in 1971, 7.5 million on the Pentium II in 1997, and 42 million on today's Pentium IV.


Measuring just 10 atoms across, IBM's carbon nanotubes form in bundles of metallic and semiconducting types. Only the latter work as transistors.

But even the most optimistic engineers agree this pace cannot continue forever. The question is exactly when the industry will hit the wall. Now recent announcements from engineers at IBM, Intel, and HP may buy a little more time for Moore.

In June, Intel announced they could make a transistor just 20 nm (20 billionths of a meter, or 0.02 microns) in size, calling it "the world's fastest silicon transistor." This advance could enable production of a billion-transistor processor by 2007, says Rob Willoner, an Intel market analyst. That's like fitting 24 Pentium IVs on a single chip. And it's not just small, but it's fast. At 20 nm, transistors can switch faster than 1 picosec (trillionth of a second), so such a chip would likely operate at 20 GHz, compared to the Pentium IV's 1.5 and 1.7 GHz models available today.

Willoner cites the advance as Intel's entrance into nanotechnology, which is generally defined as building structures smaller than 30 nm. And the technique could "push Moore's Law through the end of the decade."


Sooner or later, accelerating chip complexity will hit a wall. Recent advances in nanotechnology may delay the impact.

Another major advance came with IBM's April announcement that it had built an array of transistors out of carbon nanotubes, cylinders of carbon atoms as small as 10 atoms across. They expect to see the full benefits of this technology after silicon-based chips cannot be made any smaller, a barrier they predict is 10 to 20 years away.

IBM perfected a process for mass-producing nanotube transistors, instead of painstakingly building them in the lab. The tubes form in bundles of metallic and semiconducting types, but only the latter can be used as transistors. IBM engineers discovered how to use a burst of electricity to destroy the metallic nanotubes.

Finally, researchers at Hewlett-Packard and UCLA won a patent in July for making chips from individual molecules instead of semiconductors. They plan to build a 10 Kbyte chip by 2005.

Still, there are physical conditions that may limit the progression of Moore's Law.

The current challenge of chip design is not so much lack of processing power as lack of efficiency. Portable electronics like PDAs and cell phones must still carry batteries as large as the appliances themselves. Another challenge is the perennial problem of electronics overheating when they get too small. Reducing voltage helps, as it shrinks power demand and boosts reliability, but it also slows down transistors, Willoner says. So with every new chip design, Intel must find a balance point.

Another physical hurdle for Moore is that the gates in Intel's 20 nm transistors are just three atomic layers thick. If they get any thinner, electric current will leak between them, making them useless.

For more information about chips from Intel: Enter 533

For more information about chips from IBM: Enter 534

Small laser for optoelectronics

Small laser for optoelectronics

A small laser could be the key to increasing the amount of data storage on compact disks if Peidong Yang, a professor of chemistry at the University of California in Berkeley, has his way. His laser, which is one thousand times thinner than a human hair, is also said to be an alternative to today's solid state lasers made from gallium arsenide and gallium nitride. Instead, Yang uses zinc oxide. He paints a gold catalyst onto a sapphire and places it in zinc oxide. The gold forms the crystal wires, which are hexagonal in cross section. The arrays of wire resemble hairbrush bristles. They emit UV light from their flat tips, which act like mirrors. The ends attached to the semiconductor also act like mirrors. Light emitted by the zinc oxide bounces back and forth, causing emission and amplification of the light. Yang uses optical pumping for exciting the zinc-oxide molecules. "Optical pumping uses a conventional laser for exciting our nanowire sample, so that stimulated emission can be generated from the nanowires," explains Yang. "One of the next steps in commercializing the nanolaser is its successful integration as a miniaturized light source in optoelectronic applications," he says. For more information, contact Yang at (510) 643-1545 or go to www.cchem.berkeley.edu.

Put on your human-machine interface

Put on your human-machine interface

Wearable, wireless, and voice-activated HMI is close to reality for the ma-chine tool industry, thanks to a digital readout (DRO) system and linear measurement technology from manufacturer Newall Electronics Inc. (Columbus, OH). The company unveiled its iPRO (Interactive Personal Readout) system during an Eastec 2001 press conference held at the Eastern States Exposition Grounds in West Springfield, MA in May.

Merging its DRO system with a voice-activated, wearable PC, and wireless communications, iPRO is composed of a Xybernaut(R) MA IV PC with a headset that includes display, earphones, and microphone. A voice-activated interface allows handless PC and DRO control using a transmitter to send DRO positional data via a license-free RF link so that the operator can keep hands busy positioning the workpiece, changing the tooling, or setting up jigs and fixtures. "In fact, operators can go from machine to machine with one headset," says Newall President Danny Donaldson, "or even control or monitor machine status from several hundred meters away. Anything you can do with a conventional PC, or our standard DRO, you can do with the iPRO."

Communication between DRO and belt-mount PC transmitters feeds information to the operator's head-mounted display from the DRO's linear scale read heads in the machine via wireless LAN (local area network). Running Windows on a Pentium MMX 233 MHz platform, iPRO uses special optics and a 1.1-inch semi-transparent screen to create a virtual, full-color, 15-inch image (at a distance of 24 inches) that appears to float inches from the wearer's eyes.


Newal Electronics' wireless voic-activated technology allows operators hands-free data access. Special optics and a small, semi-transparent screen create a virtual image that appears to float inches from the eyes.

Admittedly, some operators may be put off by the idea of wearing a PC and headset all day. Hesitant job-shop managers may argue that they can't even get machine operators to use a DRO, much less a PC type device. "But I've got a 10-year old daughter who could operate iPRO because it is a PC, and it is voice operated," says Donaldson.

Newall is committed to the wearable HMI technology because it's confident that iPRO is a concept whose time has come. "With future developments like integrated Blue Tooth(R) technology, along with lighter and smaller wearable PCs, we feel that future products will provide unparalleled safety, convenience, and productivity," Donaldson says.

Integrated environment. The problem, according to Technical Director Mark Hudman, is that the number of parts machined per shift determines operator productivity. So time wasted going to the stock room for materials, getting a drawing out of a file, or looking away from the workpiece to check the display, view a blueprint, or change parameters on the keypad really eats into overall output.

"We wanted a wearable display in plain view of the operator at all times," Hudman explains. "We wanted wireless to disconnect the operator from the machine and provide greater freedom of movement. We wanted voice control to free the operator's hands to tend to machine operation. We went through a very interesting exercise, imagining everything a machine operator does on the job, as we built up a completely integrated environment with the goal of putting all these entities into one focused point that the operator has control over."

By putting all this information in plain view of the operator, iPRO makes PC and DRO control as easy as talking on a cell phone, and information access as simple as glancing into the rearview mirror while driving. The biggest challenge, according to Donaldson, "is presenting all that information in a way that's not overwhelming." That's why the virtual display is fully customizable. "The operator only accesses the information needed for a particular job," Donaldson says. "The virtual head-mounted display is similar to a PC monitor in that the operator can set it up to display various kinds of information on different pop-up screens. Users can tend to machine operation with their hands while using their voice to call up CAD drawings, help guides, or tooling documentation; view speed and feed charts, or images or videos of previous machine setups; check e-mail, access the Internet, or even make phone calls," explains Donaldson.


A machine tool operator merely speaks a keyword to input machine setupt or measurment data and to access various types of data such as CAD drawings and tooling documentation. He or she can also access the Internet and make phone calls.

Myriad uses. iPRO has a number of potential applications in a machine tool setting, from inventory control to the integration of time clock and punch card data into a central database. For example, Donaldson explains, "Take the case of an operator working at a machine that needs 12 inserts for a particular job. All he has to do is say 'tool room' into the microphone, and the tool room inventory pops up in his display. He selects the inserts he needs, and someone pulls them from the tool crib for delivery. Simultaneously, an order goes out to the supplier for more inserts. Once an operator goes through the voice training session, iPRO recognizes the voice upon each login. That information is easily correlated with machine utilization data on a per-job basis, since each lathe, mill, or drill in the shop transmits a unique ID in the header of its information data packet, which contains machine-specific information such as type and number of axes. Correlation of all this data in a central database gives management access to a wireless paper trail of who is working on which job, what machines were used, and for how long.

The wearable HMI could also be set up for instant machine-fault notification. So if an operator is working at one machine and there's a fault on another machine at the other end of the shop, the display provides a fault message. As the operator walks over to the machine with the problem, he calls up that machine to get more specific information, telephones maintenance, and sends an e-mail to inform the manager.

Monitor and record information on tool life. Operators can select the best tooling on a per-job, per-machine basis. For example, one brand of carbide insert might perform better on older machines with more play, explains Donaldson. Another brand might perform better on the newer machines. "The same kind of insert performance information could be recorded and stored for different workpiece materials, alloys, or types of jobs, and operators could have access to all the information for the next job."

While iPRO costs approximately $10,000 and may be too bulky to embed into a pair of safety glasses today, Newall is committed to its future. "You'll see it getting lighter, smaller, and cheaper," says Donaldson. "The pricing may eventually come down to about 1/2 the price of today's model. More features will be added, and it will be something that may someday be embedded into a pair of safety glasses."

For more information

Go to www.designnews.com/info or enter the number on the Reader Service Card:

  • DRO, iPRO, or linear measurement technology from Newall Electronics Inc.:
    Enter 547

  • Wearable computers from Xybernaut:
    Enter 548

7 reasons for using self-clinching fasteners

7 reasons for using self-clinching fasteners

Permanently installed in an assembly, self-clinching fasteners provide strong threads in metal sheets too thin to be tapped, and have enabled the development of many thin-metal designs that otherwise would not be possible.

As an example, design requirements for orthogonal chassis construction usually are satisfied by bent tabs and relief slots, brackets and hardware, or welding. However, each of these methods to produce right-angle assemblies has been known to exhibit performance or production drawbacks.

In enclosures where EMI is a concern, the "holes" created when bent tabs are used can impact negatively on desired shielding. Welding tabs is an extra production step, and plating and finish problems can occur. Where right-angle brackets are used for mounting, a variety of additional necessary hardware includes attaching screws, washers, lockwashers, and nuts, which tend to hamper assembly time and increase parts inventory.

Here are some of the typical reasons design engineers specify self-clinching fasteners (whether right- angle clinch or other types):

  1. Self-clinching fasteners are often the most practical and effective joining method for thin-metal assemblies (the fasteners are designed for permanent installation in metal sheets or panels as thin as 0.020 inch/0.51 mm).

  2. The fasteners are relatively small (even miniature types are available) and require less "real estate" for attachment, which meets smaller, lighter packaging requirements of today's designs, especially those applications in the electronics industry.

  3. Once installed, self-clinching fasteners do not loosen and will not fall out, which ensures that delicate internal circuitry is protected from hardware damage.

  4. The fasteners eliminate the need to stock, use, or handle additional hardware (such as washers, lock washers, loose nuts, or bolts); accompanying thread-forming screws leave no metal residue.

  5. Self-clinching fasteners can accelerate end-product assembly, because hardware installation is usually performed during fabrication instead of during final production.

  6. Self-clinching fasteners allow for component disassembly for service or other reasons.

  7. In those cases where nuts and screws for completing final attachment cannot be reached after a component is assembled, self-clinching fasteners (specified for installation during the initial fabrication process) can simplify and expedite component mounting and assembly operations.


Using right-angle fasteners on this electronic enclosure cut the total number of fasteners in half and cut assembly time from 1.5 hours to 15 minutes.

Installation procedures. Regardless of fastener type or variation, all self-clinching fasteners are installed by pressing them into place in a properly sized drilled or punched hole. This pressing or squeezing process causes displaced panel material to cold flow into a specially designed annular recess in the shank or pilot of the fastener, locking the fastener in place. A serrated clinching ring, knurl, ribs, or hex head prevents the fastener from rotating in the metal when tightening torque is applied to the mating screw or nut.

The advantages of self-clinching fasteners multiply when a fastener can function as a right-angle attachment point.

Material compatibility. Designers should keep in mind that the fastener material must be compatible with the panel or sheet material. In addition, the fastener hardness must be greater than the hardness of the panel material into which it is installed. A general rule of thumb is that the fastener should be at least 20 points HRB greater than the panel or sheet material hardness. (Punched holes will produce an increased hardness around the mounting hole.)

Individual application requirements will largely direct design engineers to specific self-clinching fastener types, which traditionally fall into one of four primary categories: nuts, studs, spacers/standoffs, or panel fasteners.

Regardless of self-clinching fastener type or variation, all demonstrate conformance to principles of Design For Manufacture and Assembly from the outset of a component's design through to its final assembly.


Product News

Product News

Disc and hub assemblies

The 4800 series brake disc and hub assemblies are available as machined discs in factory-ordered pilot-hole and bolt-circle pattern; blank discs in which users may create individual patterns; and disc and hub combination assemblies. With 5 disc diameters-65/16, 8, 10, 12, and 16 inches-the 1010 steel discs fit several brand caliper disc brakes, according to the company.

W. C. Branham Inc., www.cbranhaminc.com
Enter 612

Test instrumentation modules

The GR Versa OT(TM) test solution's two new instrumentation modules reportedly add flexibility by measuring transmission power and confirming receiver sensitivity. An automated switching feature is designed to produce faster test times, a faster speed-to-market process, and efficient human resource use. According to the company, the system also uses less manufacturing floor space due to a smaller system footprint. It is made to meet production test requirements of key switching component manufacturers in the optical telecom industry.

GenRad, www.genrad.com
Enter 613

Current transducers

Made to monitor non-contact direct current, the CR5200 series of Hall Effect Current Transducers reportedly produce 1% accurate readings of a calibrated 0-5V dc or 4-20 ma output signal. The variety of transducer models operate from a 24V dc supply in a 2 to 300A dc full-scale range, and can be surface mounted or mounted on 35-mm DIN rails.

CR Magnetics, www.crmagnetics.com
Enter 614

Clutch

The XT-39C clutch is the newest addition to the XT "Xtreme Torque" Series of clutches and brakes, intended for high torque applications in small spaces. The 2.59-inch power-off clutch has a holding torque of 100 inch-lbs, and a coefficient of friction between 0.75 and 0.95. With a diameter of 3.4 inches, the clutch may be used in secure holding applications in industries such as aerospace, robotics, automation machinery, medical, material handling equipment, and military.

Electroid Co., www.electroid.com
Enter 615

Conductive tape

The company's line of conductive tapes include Conductive Foil Mask and Peel Tape (CFMP), Conductive Nickel Silver Nylon (NiAg), Conductive Double-Coated Copper Foil Tape (CDC), Conductive Anti-Tarnish Copper Foil Tape (CAT), and Conductive Silver Fabric Tape (CST). The tapes may be applied in higher temperature applications due to pressure-sensitive adhesive, fire rated to UL 510, eliminating the need for further pressure in an EMI shielding design.

Schlegel Systems Inc., www.schlegel.com
Enter 616

Power clamp

The Series 285 Power Clamp, reportedly the first spring pressure terminal over 2 AWG conductor size, is designed with a 200A UL current rating at 600V, and the ability to connect conductors from 4 AWG to 3/0. Made with a coil spring technology, the power clamp uses an 8-mm T-wrench to activate the spring, at which point a locking tab holds the spring in place to allow for conductor insertion. The company recommends its use with medium voltage power panels and large conductor control panels.

WAGO Corp., ww.wago.com
Enter 617

Digital signal processor

The Blackfin(TM) 16-bit digital signal processor (DSP) uses the Intel jointly-developed Micro Signal Architecture to develop hardware and software for the telecommunications industry, as well as for Internet appliances. A power management chip controls the DSP voltage, reportedly reducing power consumption to as low as 42 mW at 0.9V. The DSP emits up to 600 million multiply accumulate instructions per second (MMACs), operating at 300 MHz.

Analog Devices, www.analog.com
Enter 618

Lubricators

The Quicklub 203 lubrication systems can be selected with 2-, 4-, or 8-liter reservoirs. They can deliver reliable performance in harsh environments while automatically monitoring for low lubricant levels and feedline blockages. Three models feature low-level sensors with microprocessor controls that permanently save control and monitor settings in EPROM if power is lost. The microprocessors also eliminate the need for control boards.

Lincoln Industrial,www.lincolnindustrial.com
Enter 619

PFA fittings

PURELOC(R) fittings are precision-molded from chemically inert PFA. The fittings mate well with PFA tubing to create complete contamination-free systems for fluid applications. The PURELOC's parts consist of a body, nut, ferrule, and gripper. The gripper, made of carbon-filled Tefzel(R), is black and can be easily seen through the other translucent parts. This visibility allows the user to assure the fitting is installed properly.

NewAge Industries, www.newageind.com
Enter 620

Magnet

Mag-Edge(TM) yields a strong magnetic force from a thin and narrow piece of material, down to 0.7 mm thick and 3 mm wide. The magnet is produced as a flexible neodymium compound and a plastic edging by feeding the materials through two barrels into a common die and co-extruding a magnetic strip. Colors can be specified to indicate the different polarities of co-acting strips. Moreover, this magnetic material is flexible and resilient like rubber sheet, so that it can be rolled up like a scroll for carrying.

Kane Magnetics Int'l.www.kanemagnetics.com
Enter 621