Method and system for obtaining diaphragm compliance

A compliance and acquisition device technology, which is applied in the field of receiver diaphragms, can solve the problems that the compliance of the test diaphragm is easily disturbed by the surrounding environment, and the compliance of the diaphragm cannot be tested separately, achieving the effect of direct testing and high confidence
CN103813258BActive Publication Date: 2017-03-22GOERTEK INC
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GOERTEK INC
Publication Date
2017-03-22

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Abstract

The invention provides a method and a system for acquiring diaphragm compliance. The diaphragm compliance is acquired through a sealed space comprising a structural cavity and a diaphragm. The method includes the steps: acquiring the diaphragm compliance according to displacement generated in vibration of a diaphragm and pressure applied to the diaphragm in vibration; converting externally inputted electric signals into acoustic signals and vibrating the diaphragm; acquiring the displacement generated in vibration of the diaphragm and acoustic pressure in the sealed space; multiplying the acquired acoustic pressure by the acoustic pressure covering area of the diaphragm to obtain the pressure applied to the diaphragm in vibration, and dividing the acquired displacement by the pressure applied to the diaphragm in vibration to obtain the diaphragm compliance. According to the method and the system for acquiring the diaphragm compliance, the diaphragm compliance can be independently tested in a sealed environment without being interfered by a surrounding environment or affected by diaphragm quality factors, so that the diaphragm compliance is more directly tested and higher in confidence.
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Description

technical field

[0001] The present invention relates to the field of receiver diaphragm technology, and more specifically, to a method and system for obtaining the compliance of the diaphragm. Background technique

[0002] With the rapid development of science and technology, the requirements for sound-generating devices are getting higher and higher, and the diaphragm is the core component of the sound-generating device, and its performance directly affects the performance of the sound-generating device.

[0003] One of the most important factors to measure the performance of the diaphragm is the compliance of the diaphragm. In the prior art, the compliance of the diaphragm is obtained by testing the self-resonant frequency of the formed diaphragm. The self-resonant frequency is the result of the joint action of the diaphragm quality and the diaphragm compliance. The existing test method requires the diaphragm to be placed in an unsealed environment, and the self-resonant f...

Claims

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