Test, Measurement and Control 28949

Waveform generator

The 33250A, an 80 MHz, function/arbitrary waveform generator with pulse capability, is designed for use on the bench-top or in test systems. It is intended to have nearly twice the bandwidth of competing products in its price range. Engineers can use it to generate standard waveforms for circuit testing, design verification, and waveform simulation. Recommended for applications in electronic design, electromechanical systems, and electronics manufacturing.

Agilent Technologies, 5301 Stevens Creek Blvd., MS 54LAK, Santa Clara, CA 95052; www.agilent.com.

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Bearing monitor

Machine Guard(TM)MG-4 is an on-line monitoring unit for measuring bearing conditions. Green-Yellow-Red warning lights with two channel monitoring indicate conditions from good to poor for lubrication and damage. Overall vibration (RMS) can be utilized to identify other rotating problems, such as imbalance, misalignment, and looseness. Other versions with either one or two additional channels of vibration are offered.

SPM Instrument Inc., Box 89, Marlborough, CT 06447; FAX (860) 295-0182; www.spminstrument.com.

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Position detectors

These surface-mount 2D position sensitive detectors (PSDs), S5990-01 and S5991-01, are designed to provide detection characteristics over a large active area. Their pincushion-type detectors are suggested for use in pointing devices such as computer mice and track balls. The active area is 4x4 mm and 9x9 mm, respectively. Both come in thin chip carrier packages for surface mounting and are automatically mounted with solder reflow.

Hamamatsu, 360 Foothill Rd. Box 6910, Bridgewater, NJ 08807; FAX (908) 231-1218; usa.hamamatsu.com.

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Linear encoder

The LIP, LIF, and LIDA Linear Encoder models are designed for increasingly demanding requirements. The LIP family permits fine measuring steps. The LIF family measures steps down to 0.1 micrometer for lengths of 70 to 3,040 mm. Lastly, the LIDA is for measuring lengths up to 30m with small position error within one signal period. They can be mounted in order to adapt to the thermal behavior of the machine.

Heidenhain Corp., 333 E. State Pkwy., Schaumburg, IL 60173-5337; FAX (847) 490-3931; www.heidenhain.com.

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