A Wireless Strain Sensing Microsystem with External RF Power Source and Two-Channel Data Telemetry Capability

Author

Suster, Michael ; Guo, Jun ; Chaimanonart, Nattapon ; Ko, Wen H. ; Young, Darrin J.

Author_Institution

Case Western Reserve Univ., Cleveland, OH

fYear

2007

fDate

11-15 Feb. 2007

Firstpage

380

Lastpage

609

Abstract

A wireless strain sensing microsystem is powered by a 50MHz signal and can simultaneously telemeter both digitized strain and temperature data over the RF powering link using passive PSK and ASK modulations, respectively. The prototype system achieves a minimum detectable strain of 0.87muepsiv over a 10kHz bandwidth with a maximum input signal of plusmn1000muepsiv. The temperature sensor resolution is 0.02Cdeg _rms with a 100Hz BW. The chip is fabricated in 1.5mum CMOS and dissipates 6mW

Keywords

CMOS integrated circuits; amplitude shift keying; microsensors; phase shift keying; strain sensors; telemetry; temperature sensors; 1.5 micron; 50 MHz; CMOS technology; data telemetry; external RF power source; passive ASK modulation; passive PSK modulation; temperature sensor resolution; wireless strain sensing microsystem; Amplitude shift keying; Capacitive sensors; Digital modulation; Phase shift keying; Prototypes; RF signals; Radio frequency; Telemetry; Temperature sensors; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International

Conference_Location

San Francisco, CA

ISSN

0193-6530

Print_ISBN

1-4244-0853-9

Electronic_ISBN

0193-6530

Type

conf

DOI

10.1109/ISSCC.2007.373453

Filename

4242424