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December 1, 2006 By: Melanie Martella, Sensors Sensors


Wireless Moisture Monitor

GE Sensing, Billerica, MA, offers the HygroTrac wireless system for monitoring environmental conditions remotely in buildings, to check for moisture-related problems. Small HygroTrac wireless sensors are installed throughout a building to monitor RH, temperature, and moisture content. Readings are transmitted to the DA gateway connected to a dedicated secure Web server via Ethernet or phone line. A single gateway can receive data from up to 600 sensors that can be installed in a 150–250 ft. area. (800-833-9438, sensing@ge.com, www.gesensing.com)



Magnetic Linear Encoders

E Series magnetic linear encoders from Admotec Inc., Lebanon, NH, combine a magnetoresistive sensor and self-adhesive SS-backed magnetic tape. The sensor's built-in resolution-enhancing interpolator lets you choose resolutions from 0.5–200 μm/edge. Sensors are supplied in a CE-approved IP67-rated aluminum housing with a SS bottom; 2 adjustable wipers at each end of the sensor provide light cleaning as the sensor moves. Applications include textile, woodworking, packaging, machine tools, marking, paper, and industrial automation measurement and feedback. (603-448-7000, admotec@valley.net, www.admotec.com)



Precision Temperature Sensors

TSic sensor ICs from Innovative Sensor Technology (IST) AG, Wattwil, Switzerland, are available in 3-pin, SOIC-8, and COF (chip on flex) cases and measure temperature from –50°C to 150°C. Temperature is available as a linear analog or digital signal. Response time is every 0.1 s; accuracy is from ±0.5°C to < ±0.1°C, depending on type; and power consumption is low.



The TSic LABkit is a plug-and-play tool for evaluating sensor devices, including TSic sensor ICs. (+41 71-987-73-73, info@ist-ag.com, www.ist-ag.com)



PXI Express DA Modules

National Instruments, Austin, TX, offers the PXIe-6259 and PXIe-6251 M Series DA modules, which provide analog and digital I/O with up to 250 MBps dedicated per-slot bandwidth. M Series DA modules feature up to 32 analog channels with 16-bit, 1.25 Msps sampling speed; up to 4 analog outputs with 16-bit, 2.8 Msps update rates; and 10 MHz digital I/O on up to 32 lines. Four remote, embedded, and rack-mounted PXI Express controllers offer up to 1 GBps system and slot bandwidth. (800-258-7022, info@ni.com, www.ni.com)



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