An Ultrasonic Measuring Method for Pipeline Flow

Abstract

The invention discloses an ultrasonic testing method of pipeline flow. When testing, the method firstly controls the blocking mechanism (2) to be in a non-blocking state, and tests the ultrasonic waves emitted from the transducer (1) through the blocking mechanism ( 2) The time when the ultrasonic wave is received by the transducer (1) after reflection; then control the flow blocking mechanism (2) to be in the flow blocking state, and test the ultrasonic wave emitted from the transducer (1) after being reflected by the flow blocking mechanism (2). The time when the transducer (1) receives the ultrasonic wave, and the flow rate in the pipe can be calculated according to the propagation speed of the ultrasonic wave, the distance from the transducer (1) to the reflecting end face of the flow blocking mechanism (2) and the inner diameter of the pipe (3) . The invention only uses one transducer to test the pipeline flow rate, which not only makes the test operation simple and reduces the cost, but also improves the test precision and accuracy.

Description

technical field [0001] The invention relates to a flow detection method, in particular to an ultrasonic detection method of pipeline flow. Background technique [0002] With the application of ultrasonic technology becoming more and more mature, ultrasonic flowmeters are widely used in various fields and have developed rapidly! However, the ultrasonic flowmeters currently used in the market all use two transducers to measure the flow rate. Due to the limitations of the transducer manufacturing process, the difference between the two transducers is caused, which eventually leads to a large error in the flow test. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an ultrasonic testing method for pipeline flow. The method only uses one transducer to test the flow, which makes it easy to test the flow by ultrasonic waves, and can also improve the accuracy of the test. [0004] In order to solve the above technical pr...

AI Technical Summary

Problems solved by technology

[0002] With the application of ultrasonic technology becoming more and more mature, ultrasonic flowmeters are widely used in various fields and have developed rapidly! However, the ultrasonic flowmeters currently used in the market all use two transducers to measure the flow. Due to the limitation of the transducer manufacturing process, the difference between the two transducers is caused, which eventually leads to a large error in the flow test.

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