Sensors/Data Acquisition

Gas Sensors

ENMET (Ann Arbor, MI) has announced the GSM-60, a microprocessor-based gas monitor. The system incorporates an internal sample draw pump and gas sensors. The GSM-60 can be custom- configured, with both internal and external sensors for monitoring VOCs, dew point, oxygen, and CO, or a number of other target gases, including O3, HF, HCl, and Cl2. The monitor can also be connected to a range of remote 4-20 mA toxic or combustible gas sensor/transmitters.

Posted in: Products, Sensors

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NASA Sensors Detect Aircraft Icing Hazards

Atmospheric Icing Sensors Glenn Research Center Cleveland, OH www.nasa.gov/centers/glenn/home NASA’s Glenn Research Center scientists are sending up weather balloons to read weather data and validate the agency’s ground-based sensors. The launch will provide better detection of potential icing hazards around the nation’s airports.

Posted in: Application Briefs, Sensors

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NASA, UCF Professor Send Sensor to Stratosphere

Planetary Atmospheres Minor Species Sensor (PAMSS) University of Central Florida Orlando, FL www.ucf.edu Using a high-altitude balloon, NASA and a team led by University of Central Florida physics professor Robert Peale sent an experimental sensor about 20 miles above the Earth. The flight demonstrated the sensor’s ability to function in the perilous conditions found in the stratosphere, where the temperature can plummet to -75 degrees Fahrenheit.

Posted in: Application Briefs, Sensors

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Glaucoma Sensor Monitors Eye Continuously

More than three million Americans are currently living with glaucoma, an eye disorder with few symptoms in its early stages. Globally, the number may increase to almost 80 million by 2020, according to the British Journal of Ophthalmology. Glaucoma eventually leads to damage of the optic nerve.

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New Control Possibilities for Wireless Switches

Wireless controls have been widely accepted and embraced in the industrial community. Widespread use of monitoring devices in the process industry, the deployment of RFID components in a variety of industry segments, and the demonstrated performance of a large, installed base of the technologies serve as evidence of their viability.

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The Strain Gauge Gets an Upgrade

The strain gauge, a device commonly used in the aerospace industry to detect stress and deformation, has its limitations. The three copper wires of the strain gauge often lead to labor-intensive efforts; a large, complicated structure requiring 100 strain measurements, for example, means 300 lead wires. As the implementation becomes more complex, the wire bundle itself gets bigger and heavier. Strain gauges are also susceptible to electronic magnetic interference, and the sensors must be spaced out at distant intervals.

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High-Shock Sensors

Diversified Technical Systems (Seal Beach, CA) has released the 6DX PRO, a high-shock sensor with six degrees of freedom. The three angular rate sensors (18000 or 50000 deg/sec) deliver position data, while the three accelerometers (2000 or 20000 g) are rated for high-impact environments. The 19 × 19 × 14.5-mm enclosure weighs 12 grams. The 6DX PRO is also sealed, IP67 rated, and compliant with NHTSA, FAA, ISO 6487, and SAE J211 practices.

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