Research on Improving the Accuracy of the Ultrasonic Flow-Meter with Time Difference Method

2010 ◽  
Author(s):  
Li Mingwei ◽  
Lv Guosheng ◽  
Hu Yanguo
Keyword(s):  
Difference Method ◽  
Time Difference ◽  
Flow Meter ◽  
Ultrasonic Flow Meter

An Effective Thermal Flow Meter Based on TDC-GP1 Chip

2012 ◽  
Vol 499 ◽  
pp. 409-413
Author(s):  
Jing Hou ◽  
Wan Jiang Zhang ◽  
Yan Ling Sun
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Flow Measurement ◽  
Time Difference ◽  
Low Power Consumption ◽  
Thermal Flow ◽  
Time Intervals ◽  
Flow Meter ◽  
Difference Type ◽  
Ultrasonic Flow Meter

In this paper, an effective and innovative thermal flow meter is presented. It is based on TDC-GP1 chip and the principle of time difference type ultrasonic flow measurement. Ultrasonic flow meter is applied widely and has some advantages such as non-contact, easily installed and maintained. But it is necessary to make the meter work more stable. The method of time difference can improve the stabilization and measured precision of the ultrasonic flow meter. TDC-GP1 is a chip which can transform time intervals into digital values with high precision. The design of the ultrasonic thermal flow meter is given details in the paper. Results of the experiments show that the innovative meter has low power consumption and high measured precision.

An Algorithm to Eliminate Stochastic Jump Measurements of Ultrasonic Flow-Meter with Time Difference Method

2011 ◽  
Vol 267 ◽  
pp. 414-421
Author(s):  
Qiang Liu ◽  
Rang Ding Wang ◽  
Ying Zhu ◽  
Cheng Tou Du
Keyword(s):  
Measurement Accuracy ◽  
Time Difference ◽  
Test Results ◽  
Flow Meter ◽  
Newton Interpolation ◽  
Improve Measurement ◽  
Measurement Results ◽  
Stochastic Jump ◽  
Ultrasonic Flow Meter ◽  
Measurement Principle

This article describes the time difference ultrasonic flow meter measurement principle, by analyzing the ultrasonic flow meter test results, using the theory of Newton interpolation correction calibration constants, solves the problems that the measurement results will suddenly appear more random beating and further improve measurement accuracy of the ultrasonic flow meter.

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