The Model 657-1 relative humidity and temperature transmitter includes two 2-wire circuits to simultaneously produce separate 4-20 mA output signals for relative humidity from 0-100% and temperature from 32 to 212F. Accuracy for humidity is ±2% from 10-90% and for temperature it is ±1F over the full range. The control operates both channels from a single 10-35V dc power supply wired into the relative-humidity current loop. The probe included with the transmitter features an integrated, polymer film, and a relative-humidity sensor plus a separate thin-film platinum sensor for temperature measurement.
Dwyer Instruments Inc., Box 373, Michigan City, IN 46361, FAX (219) 872-9057.
United Launch Alliance will fly 3D-printed flight hardeware parts on its rockets starting next year with the Atlas V. The company's Vulcan next-gen launch vehicle will have more than 100 production parts made with 3D printing. The main driver? Parts consolidation and 57% lower production costs.
The new small-form-factor EZ-BLE PRoC (Programmable Radio on Chip) module is a derivative of the existing PRoC BLE Programmable Radio-on-Chip solution. The EZ-BLE PRoC module integrates the programmability and ARM Cortex-M0 core of the PRoC BLE, two crystals, an onboard chip antenna, a metal shield, and passive components.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.