[1]Wang Zhu,Liu Chunlong,Luo Qinghua.Research on Ultrasonic Sensors Characteristics and Testing Method[J].Journal of Zhengzhou University (Engineering Science),2020,41(02):13-18.[doi:10.13705/j.issn.1671-6833.2020.03.022]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
41卷
Number of periods:
2020 02
Page number:
13-18
Column:
Public date:
2020-05-31
- Title:
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Research on Ultrasonic Sensors Characteristics and Testing Method
- Author(s):
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Wang Zhu; Liu Chunlong; Luo Qinghua
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Harbin Institute of Technology (Weihai) School of Information Science and Engineering
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- Keywords:
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ultrasonic sensor; performance matching; Resonant frequency; anti-resonant frequency; resonance impedance; Anti-resonant impedance; Static capacitance
- CLC:
-
-
- DOI:
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10.13705/j.issn.1671-6833.2020.03.022
- Abstract:
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The accuracy of flow measurement could be affected by the consistency of the pair of ultrasonic sen-sors. In view of the problem of poor consistency of different ultrasonic sensors, this paper aimed to analyze theinfluence of several closely related parameters , and provide theoretical basis for the selection of the pair of sen-sors used in the same flowmeter. At the same time , the transmission line method , alternative method and vari-able frequency excitation signal were used to realize the test of ultrasonic sensors, and the specific circuit de-sign method to realize the test was given. The experimental results showed that the proposed method was stableand reliable, and a pair of ultrasonic sensors with good test performance consistency could ensure the flowmeasurement accuracy.