Sound velocity determination time-delay device

Abstract

The invention relates to a sound velocity determination time-delay device, comprising two microphones, a sound sensor, computer connecting lines and a computer, wherein each microphone is connected with one end of each computer connecting line, and the other end of each connecting line is connected with the computer. The invention is characterized in that the device further comprises a sound time-delay package which comprises a case and a sound pipe, wherein one end of the sound pipe is connected with the microphones, the other end is connected with the input end of the sound sensor, the output end of the sound sensor is connected with one end of each computer connecting line, and the other end of each computer connecting line is connected with the computer; and the sound pipe is a plastic pipe with a 16.7 meters length and is deviously arranged in the case. Due to a time-delay package arranged on the sound velocity determination time-delay device of the invention, normally transmitted sounds and delay-transmitted sounds can be provided and displayed on the computer so that the experimental result is intuitive and understandable. The invention has low cost, easy operation, simple structure and easy popularization and utilization, and can be used for solving the difficult problem of use of the pipeline with the 16.7 meters length in a classroom experiment.

Description

technical field [0001] The invention relates to a device for measuring the velocity of sound, in particular to a delay device for measuring the velocity of sound. Background technique [0002] At present, there is a prior art for a device for measuring the speed of sound, which includes: an electrical pulse generating device for generating an output electrical pulse signal, and an emission device for converting the output electrical pulse signal into an output acoustic pulse signal A converter for reflecting the output acoustic pulse signal, thereby producing a reflector of the reflected acoustic pulse signal; a receiving converter, which is configured to receive the output acoustic pulse signal directly emitted from the transmitting converter and output by the The reflected acoustic pulse signal reflected by the reflector, wherein the receiving converter converts the received output acoustic pulse signal into a reconstructed output electrical pulse signal, and converts the ...

AI Technical Summary

Problems solved by technology

[0005] 1. This prior art multi-functional acoustic wave parameter measuring instrument is composed of various parts of the circuit, complex in structure, high in cost, difficult in operation, and not easy to popularize and apply

[0006] 2. This prior art multifunctional sound wave parameter measuring instrument is formed by connecting multiple devices, which is easily disturbed by the outside world, has large errors, and cannot measure the speed of sound through the delay of sound, so the experiment is not intuitive enough.

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