MIC test device and manufacturing method and use method thereof
A test device and tested technology, applied in electrical components, sensors, etc., can solve the problems of sound interference and high cost, and achieve the effect of ensuring accuracy, low cost, and eliminating sound interference
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Embodiment 1
[0034] Such as figure 1 Shown, MIC testing device of the present invention comprises:
[0035] A test sound 1 and a sound source generator 2, the test sound 1 is connected to the sound source generator 2, and the test sound 1 is packaged in a closed space with the tested MIC;
[0036] The test speaker 1 includes: a speaker 11 and a sound-insulating material 12 wrapped on the surface of the speaker, the shape of the test speaker 1 is consistent with the shape of the tested MIC;
[0037] The speaker 11 and the MIC under test are packaged in a closed space through the sound-insulating material 12 , and the sound-insulating material 12 is closely attached to the surface of the speaker 11 and the MIC under test.
[0038] Preferably, the sound source generator 2 is composed of a power supply, a circuit board, and a USB sound output device. Those skilled in the art should understand that the sound source generator can also be any device capable of outputting sound such as MP3 and MP...
Embodiment 2
[0042] Such as figure 2 As shown, the present embodiment describes the manufacturing method of the MIC testing device of the first embodiment, including the following steps:
[0043] Step S201: Wrap the sound-insulating material on the surface of the speaker to make a test sound, and set the shape of the test sound to be consistent with the shape of the MIC to be tested;
[0044] The shape of the test speaker is consistent with the shape of the tested MIC, which can better realize the close fit of the test speaker and the tested MIC, forming a closed space to prevent noise interference. Those skilled in the art should understand that even if the shape of the test sound is inconsistent with the shape of the MIC to be tested, the function of testing can still be realized, but the effect is slightly worse.
[0045] The sound insulation material is preferably a soft sound insulation material, so that the horn and the MIC to be tested are wrapped inside to form a closed space for...
Embodiment 3
[0050] Such as image 3 As shown, the method for using the MIC testing device of Embodiment 1 is described, including the following steps:
[0051] Step S301: According to the test standard corresponding to the tested MIC, use a sound tester to test to obtain the playback volume of the sound source generator;
[0052] When the tested MIC is tested by the preset test standard, the volume received by the tested MIC at a fixed distance from the test sound source is also fixed. Therefore, in order to use the device of the present invention to achieve the same test effect, it is necessary to calculate When the speaker and the MIC under test are packaged in a closed space, the speaker needs to output the volume. The volume is directly controlled and adjusted by the volume of the sound source generator, therefore, it is necessary to finally obtain the volume of the sound source generator when playing.
[0053] Specifically, step S301 may be implemented as the following steps:
[005...
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