Research on High-Accuracy Low-Power Ultrasonic Flow Measurement and Instrument

Wei Guo Zhao; Xue Song Zhao

doi:10.4028/www.scientific.net/AMR.301-303.646

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 301-303Research on High-Accuracy Low-Power Ultrasonic...

Research on High-Accuracy Low-Power Ultrasonic Flow Measurement and Instrument

Abstract:

In order to solve the problem of low accuracy and high power consumption, A new ultrasonic flow measurement method was proposed in this paper. With this method, the influence of the delay-time in the circuit was eliminated,the temperature of fluid was compensated automaticly and the accuracy of the flow measurement was improved. The ultrasonic flow-meter was designed with the micro-power timing chips TDC-GP2 and MSP430F435, which reduced the power consumption effectively. The experimental results showed that the accuracy of the ultrasonic flow-meter was 1.5% and the average operating current was lower than 35uA.

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Periodical:

Advanced Materials Research (Volumes 301-303)

Pages:

646-652

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.301-303.646

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Online since:

July 2011

Authors:

Wei Guo Zhao, Xue Song Zhao

Keywords:

Delay-Time in Circuit, TDC-GP2, Temperature Compensation, Ultrasonic Flow Meter

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