Sensors/Data Acquisition

Cable Extension Sensors

The POSIWIRE® WS21 cable extension sensor from ASM (Elmhurst, IL) is equipped with a non-contact, magnetic multi-turn-encoder that enables long measuring lengths up to 20,000 mm. Typical applications include linear measurements for crane booms.

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Temperature Sensors

Exergen Corp. (Watertown, MA) has announced the Extreme IRt/c non-contact temperature sensor. A custom-designed housing protects the sensor from extreme vibrations, shifts in pressure, and other acute ambient changes. The sensor was originally developed for a defense contractor whose client needed to measure the temperature of equipment mounted on the exterior of military aircraft.

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Submersible Position Sensors

Macro Sensors (Pennsauken, NJ) has introduced submersible LVDT Position Sensors for use as part of subsea measurement systems. The SSIR 937 Series Submersible LVDT Position Sensors withstand deep sea environments with external pressures to 5000 psi. Designed for use in either pressure-balanced, oil-filled containers or directly in seawater, the 0.94-inch (24-mm)-diameter technologies are available in standard ranges of 2.00 inches (50 mm), 3.00 inches (75 mm), or 4.00 inches (100 mm). To minimize the number of pressure-sealed connections and I/Os, a 4-20mA two-wire, loop-powered I/O is utilized. The 4-20mA I/O also reduces noise over long transmission lines. A data acquisition system on the platform above supports offset management. For Free Info Visit http://info.hotims.com/61058-149

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Capacitive Force Sensor

Pressure Profile Systems (Los Angeles, CA) has released the SingleTact, a miniature capacitive force sensor. The ultra-thin, single-element device quantifies forces in analog or digital configuration. The SingleTact interface board can be customized for an engineer’s specific application. A choice of six sensor configurations is provided, including 8-mm and 15-mm diameter sensors, and force ranges from 100 grams to 45 kg full scale. For Free Info Visit http://info.hotims.com/61058-141

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RF & MW Control Products in Silicon

Analog Devices’ new RF and microwave (MW) switch and attenuator products implemented in advanced silicon process benefit inherent advantages of silicon technology compared to legacy counterparts using gallium-arsenide (GaAs). This paper provides highlights on features and key performance parameters of the new switch and attenuator products.

Posted in: White Papers, Data Acquisition, Sensors

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How New Angular Positioning Sensor Technology Opens A Broad Range of New Applications

A new generation of touchless position sensors solves a number of new problems while simplifying existing on-line control applications by providing design engineers with an opportunity to reduce implementation and maintenance costs. This technology can solve problems from measuring through materials to existing shaft alignment issues.

Posted in: Sensors, White Papers, White Papers, Sensors

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Improved Ground Collision Avoidance System for General Aviation Aircraft and UAVs

This advanced warning system uses cutting-edge fighter jet technology to prevent controlled flight into terrain, which is a leading cause of aviation fatalities. Armstrong Flight Research Center, Edwards, California Controlled flight into terrain (CFIT) causes almost 100 deaths each year in the United States. Although warning systems have virtually eliminated CFIT for large commercial air carriers, the problem still remains for general aviation aircraft and unmanned aerial vehicles (UAVs). Existing systems are forced to rely on digital maps with low resolution/fidelity. They also require expensive equipment, limit the maneuvers to avoid collision, and frequently issue false alarms, causing pilots to ignore the safety system.

Posted in: Briefs, Sensors

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