A system for testing the temperature characteristics of a microphone

A technology of testing and temperature characteristics, applied in the direction of electrical components, etc., can solve problems such as not having testing functions

Pending Publication Date: 2018-12-28
WEIFANG GOERTEK MICROELECTRONICS CO LTD
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Problems solved by technology

However, the existing microphone test ...

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  • A system for testing the temperature characteristics of a microphone
  • A system for testing the temperature characteristics of a microphone

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] Such as figure 1 and figure 2 As shown, a kind of microphone temperature characteristic experiment test system, comprises: be located at the sound-generating device that is used to send out the test audio signal under the airtight environment, receive the test audio signal and output the test microphone 3 and the standard microphone 7 of the audio electric signal, electrify to use The heating plate 5 that the microphone 3 to be tested heats up, and the refrigerating plate that energizes the microphone 3 to be tested at a low temperature; also includes a temperature control device 6 and an ...

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Abstract

The invention discloses a microphone temperature characteristic test system, which relates to the field of electro-acoustic products, comprising a sounding device, a microphone to be tested, a standard microphone, a temperature control device, an audio analyzer, a heating sheet and a refrigerating sheet. The temperature control device accurately controls the temperature of the microphone to be measured by controlling the heating plate or the refrigerating plate. Wherein the audio analyzer outputs a test audio electrical signal to the sounding device, At the same time, the microphone and the standard microphone are transmitted to the microphone and the standard microphone to be tested through the sound generate device, and then two audio electric signals are inputted to the audio analyzer respectively according to the audio signals actually received by the microphone and the standard microphone, and the audio analyzer completes the frequency response and distortion test through the audio electric signals inputted by the microphone to be tested; by judging, comparing the received two audio electrical signals, the phase test is completed. Therefore, the invention can accurately control the temperature of the microphone and complete the acoustic performance test.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a microphone temperature characteristic test system under high temperature and low temperature conditions. Background technique [0002] With the continuous development of consumer electronics technology, the performance requirements of microphone products are getting higher and higher. For example, the microphone is required to work normally under extreme temperature conditions of high temperature and low temperature. In order to ensure the performance of the finished microphone, it is necessary to test the frequency response, phase and distortion of the microphone under high temperature and low temperature conditions during the production stage. However, the existing microphone test system does not have the above test function. Contents of the invention [0003] In view of the above shortcomings, the object of the present invention is to provide a microphone...

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Application Information

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IPC IPC(8): H04R29/00
CPCH04R29/001
Inventor 李海滨韩海云安春璐
Owner WEIFANG GOERTEK MICROELECTRONICS CO LTD
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