NDLI: A sensor signal processor

Content Provider	IEEE Xplore Digital Library
Author	Yamada, M. Watanabe, K.
Copyright Year	1994
Description	Author affiliation: Res. Inst. of Electron., Shizuoka Univ., Hamamatsu, Japan (Yamada, M.; Watanabe, K.)
Abstract	This paper describes a universal sensor interface named the sensor signal processor (SSP). The SSP consists of digital and analog blocks. The digital block generates a waveform which simulates the sensor characteristic in the time domain. An analog block processes a sensor output in the form consistent with the output of the digital block. Comparing both the outputs the SSP provides a linear digital equivalent of the measurand. For generating the waveform, the direct digital synthesis (DDS) and oversampling delta-sigma demodulation techniques are used. Eliminating precision devices, these techniques allow the high yield, monolithic implementation. The scale adjustment and cancellation of the offset and cross-sensitivity are also possible by adjusting the reference voltage involved in the DDS. Thus, the SSP satisfies almost all requirements for a universal interface. An application to a capacitive pressure sensor is also given to demonstrate its validity.
Starting Page	648
Ending Page	651
File Size	388923
Page Count	4
File Format	PDF
ISBN	0780318803
DOI	10.1109/IMTC.1994.352015
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-05-10
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal processing Pulse width modulation Sensor phenomena and characterization Voltage Chemical and biological sensors Character generation Capacitive sensors Encoding Working environment noise Noise cancellation
Content Type	Text
Resource Type	Article

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