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Laser vibrating diaphragm F0 tester

A tester, laser technology, applied in the direction of electrical components, etc., can solve problems such as low precision

Inactive Publication Date: 2014-10-29
宁波腾辰电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the low-precision problems caused by various reasons in the existing testing instruments, and provide the industry with a highly automated and high-precision laser diaphragm F0 tester product to conveniently and accurately measure the vibration of the loudspeaker. The resonant frequency of the film can effectively improve the quality of the finished speaker, so that the industry standard of speaker manufacturing in my country can be in line with the world

Method used

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Embodiment Construction

[0011] Such as figure 1 , figure 2 As shown, the laser diaphragm F0 tester of the present invention includes a position determining device, a vibration frequency generating device, a real-time ranging device and a data processing control device.

[0012] The position determining device is used to move the laser displacement sensor 12 to the best measurement position, and it includes the X-axis guide rail 1 and its servo motor 4, the Y-axis guide rail 2 and its servo motor 5, and the Z-axis guide rail 3 and its servo motor 6 , A three-axis closed-loop console 13, the servo motor 4 is connected to a three-axis closed-loop console 13 through a line 19, the servo motor 5 is connected to a three-axis closed-loop console 13 through a line 20, and the servo motor 6 is connected through a line 21 Connected to the three-axis closed-loop console 13.

[0013] The vibration frequency generating device is used to drive the tested diaphragm 30 to vibrate. It includes an audio power amplifier 14...

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Abstract

The invention relates to a laser vibrating diaphragm F0 tester which comprises a positioning confirming device, a vibration frequency generating device, a real-time distance measuring device and a data processing control device. The positioning confirming device is used for moving a laser displacement sensor to a best measurement position, the vibration frequency generating device is used for pushing measure a measured vibrating diaphragm to vibrate, the real-time distance measuring device is used for measuring vibration amplitudes of the measured vibrating diaphragm at different frequencies, and the data processing control device is used for controlling input and output of changing parameters of the whole system, forming a curve chart of the vibration amplitudes of the measured vibrating diaphragm and further calculating the resonant frequency. The positioning confirming device comprises three guide rails perpendicular with one another in a space and a three-shaft closed ring control console, wherein one servo motor is arranged on each guide rail.

Description

Technical field [0001] The invention relates to the field of design and manufacture of resonant frequency test instruments, in particular to an instrument that can individually test the resonant frequency (F0 value) of a loudspeaker diaphragm\diaphragm. Background technique [0002] As we all know, the speaker is the weakest device in the audio equipment, and for the sound effect, it is the most important component. There are many types of speakers, but the basic principle is simple. Audio electric energy uses electromagnetic, piezoelectric or static electricity to make its diaphragm vibrate and resonate (resonate) with the surrounding air to produce sound. In the quality index of the speaker, the resonance frequency of the diaphragm is very important. Therefore, when designing and manufacturing speakers, the resonant frequency of the diaphragm must be tested to ensure the quality of the finished product. At present, the main test method for testing the speaker diaphragm / diaphr...

Claims

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Application Information

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IPC IPC(8): H04R29/00
Inventor 陈朝方
Owner 宁波腾辰电子有限公司
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