Sound wave flying time measuring device

By designing a sound wave transit time measurement device and utilizing amplification, filtering, and feature detection technologies, the problem of inaccurate measurement under large ultrasonic attenuation scenarios was solved, achieving accurate measurement under such scenarios and expanding the application range of the measurement device.

CN120871098APending Publication Date: 2025-10-31北京汇川力行科技有限公司
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Patent Information

Application Number
CN202510932692.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

In existing technologies, under conditions where ultrasonic wave attenuation is significant, the measurement device for measuring the time of flight of sound waves cannot accurately determine the measurement result, thus limiting the scope of application of the measurement device.

Method used

A device for measuring the time of sound wave transit is designed, including a control module, a pulse generation module, a transducer assembly, a front-end processing module, a comparator assembly, an echo feature detection module, and a time measurement module. By amplifying, filtering, and detecting the features of the response voltage wave group, the start and stop times of the sound wave transit are determined, thereby accurately measuring the time of sound wave transit.

Benefits of technology

In scenarios where ultrasonic wave attenuation is significant, the travel time of the sound wave can be accurately determined, expanding the application range of the measuring device and improving the accuracy and reliability of the measurement.

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Abstract

The invention discloses a sound wave flying time measuring device, and belongs to the field of sound wave measurement. The measurement device comprises a control module, a pulse generation module, a transducer assembly, at least one front-end processing module, a comparator assembly, at least one echo feature detection module and at least one time measurement module. The pulse generation module, the transducer assembly, the at least one front-end processing module, the comparator assembly, the at least one echo feature detection module and the at least one time measurement module are electrically connected with the control module; the pulse generation module is electrically connected with the transducer assembly and the time measurement module, the transducer assembly is electrically connected with the at least one front-end processing module, the at least one front-end processing module is electrically connected with the comparator assembly, and the comparator assembly is electrically connected with the at least one echo feature detection module and the at least one time measurement module.
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