A model-based transit-time ultrasonic gas flowrate measurement method

黄志尧 · 2016

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出版社：

A model-based transit-time ultrasonic gas flowrate measurement method

会议名称：

2016 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2016

会议地点：

Taipei

发表日期：

2016.07.22

摘要：

Based on the transit-time ultrasonic gas flowrate measurement principle and the model-fitting method, a model-based Time-of-Flight measurement method is proposed. A single acoustic path ultrasonic gas flow measurement system is developed and an empirical model of the ultrasonic detection signal is established. The least-squares curve fitting criterion and the modified steepest descent method are introduced to implement the optimal Time-of-Flight estimation. Static and dynamic experiments are carried out respectively in a pipe with the inner diameter of 100.0 mm. The preliminary experimental results verify the feasibility of the new model-based ultrasonic gas flow measurement method and show that the measurement performance of the gas flowrate measurement system is satisfactory.