Publication Type:

Conference Paper

Source:

Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE (2007)

Keywords:

analogue-digital conversion, Appropriate technology, Circuits, differential resistive sensors, Differential Resistive Transducer, digital converter, Dual Slope, dual slope resistance, Electric resistance, Electrical resistance measurement, Instruments, parameter variations, sensitivity analysis, Sensors, Switches, Time measurement, Transducers, transformation constant, Virtual colonoscopy, Voltage

Abstract:

A dual slope resistance to digital converter applicable to differential resistive sensors is presented. A dual slope digital converter is appropriately modified so that it accepts directly the resistive elements of a differential resistive sensor and provide a digital output that is linearly proportional to the physical quantity being sensed by the sensor. High accuracy is easily obtained since the output is decided only by a pair of dc reference voltages and the transformation constant of the sensor. Sensitivity analysis shows that the effect of circuit parameter variations on the output is minimal. The efficacy of the proposed scheme is clearly demonstrated by the test results obtained on a prototype.

Cite this Research Publication

Dr. Madhu Mohan N., George, B., and Kumar, V. J., “Dual Slope Resistance to Digital Converter”, in Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE, 2007.

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