VIRTUAL INSTRUMENTATION FOR FREQUENCY OUTPUT SMART SENSORS

Sergey Y. Yurish, Nikolay V. Kirianaki, Nestor O. Shpak

Abstract

The universal solution for precise virtual instrument system realisation permitting to connect any frequency-time domain (quasi-digital) sensor to IBM PC compatible computers is described in the paper. The virtual instrument system for smart sensors with frequency-time domain output is based on the novel adaptive program-oriented method for frequency-to-code conversion – method of dependent count. The main advantages of this method for virtual sensor instrumentation applications are: high accuracy, constant quantization error in all frequency range, non-redundant conversion time, minimum possible hardware and self-adopting possibilities. The example of virtual instrument for duty-cycle output temperature sensor is given.

Keywords

virtual instrument, frequency output sensor, smart sensor, data acquisition

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IMEKO-TC4-2001-120.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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