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New Passive Sensor Tag Operates With Standard Readers

Asygn's AS321X UHF RFID tag consists of the company's own IC and sensors, with an instrumentation amplifier and an acquisition interface, to enable the sensors to seamlessly measure and forward data with the power of the RFID tag interrogation.
By Claire Swedberg

The AS321X chip is designed to be robust in challenging environments, with high stability during the measurement of temperature, motion or other conditions, "due to how we implement this acquisition channel, which guarantees we have a very stable measurement," Delorme states. "What we think we bring is a new category of applications: sensing without wires or battery."

The cost of the tag will be higher than that of a standard inventory-tracking RFID tag, though the company has not yet estimated the commercial price. Among the businesses currently testing the chips are system integrators, as well as end users themselves. Most customers are located in Europe, though samples are being provided to customers and partners globally.

Nicolas Delorme
Upon request, Asygn can provide antenna and tag designs for qualified partners. The company says it can also supply mobile and desktop applications and database-management libraries for use by systems integrators or end users, to let them more quickly develop the solution.

Other passive UHF RFID sensor tags are provided by Farsens (see Spanish Startup Focuses on Passive RFID Sensors for Manufacturing and Other Industries) and Axzon, formerly known as RFMicron (see Smartrac, RFMicron Release Passive RFID Temperature Sensor Technology).

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