A Dynamic Voltage Compensation Method for Improving Weighing Accuracy

Rong Sen Yin; Jia Qiang Yang

doi:10.4028/www.scientific.net/AMM.333-335.317

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 333-335A Dynamic Voltage Compensation Method for...

A Dynamic Voltage Compensation Method for Improving Weighing Accuracy

Abstract:

In order to eliminate the measurement error caused by working voltage fluctuation of weighing sensor, a dynamic voltage compensation method for improving the weighing accuracy was proposed in the paper. The method takes strain gauge type pressure sensor as the weighing sensor and corrects Wheatstone bridge circuit. By synchronously detecting output voltage signal and working voltage of the weighing sensor, the method dynamically compensates the working voltage fluctuation of the weighing sensor, corrects the measurement error caused by the voltage fluctuation of external source and calculates the weight in real time. A weighing system based on the digital signal processor (DSP) was designed. Results of simulation experiment verify the feasibility of the proposed method.

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Periodical:

Applied Mechanics and Materials (Volumes 333-335)

Pages:

317-321

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.333-335.317

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Online since:

July 2013

Authors:

Rong Sen Yin, Jia Qiang Yang

Keywords:

Digital Signal Processor (DSP), Pressure Sensor, Signal Sample, Weighing

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References

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