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Earphone voice pickup sensor vibration test system and vibration test method

A test system and voice pickup technology, applied in earphone/headphone accessories, electrical components, etc., can solve problems such as inconsistency in amplitude, and achieve the effect of resolving differences, easy replication, and high working stability

Inactive Publication Date: 2022-05-06
SHANDONG TRANSPORT VOCATIONAL COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a vibration test system and a vibration test method for an earphone voice pickup sensor to solve the problem of inconsistency in the amplitude of the vibration table at the same frequency among multiple sets of vibration test systems, and to facilitate the vibration test system. Replication, with the advantages of accurate test results, high test efficiency, and good system stability, can meet the needs of batch testing in production lines

Method used

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  • Earphone voice pickup sensor vibration test system and vibration test method
  • Earphone voice pickup sensor vibration test system and vibration test method
  • Earphone voice pickup sensor vibration test system and vibration test method

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Embodiment

[0034] Such as figure 1 , figure 2 and image 3 Commonly shown, a headset voice pickup sensor vibration test system, including a base 5, a host computer capable of issuing manipulation commands, a vibrating table 1 and an acceleration sensor 2 installed on the vibrating table 1; also includes a sound card, and supports a CCLD power supply system The adjustment amplifier and power amplifier, as well as the wires for connection, etc. The vibration table 1 is installed on the base 5, and the mass of the base 5 is not less than 200 kg. The preferred base 5 in this embodiment is a marble base. The base 5 is used to ensure the adjustment of the installation level of the vibrating table 1 and to block external interference. When testing the earphone voice pickup sensor, external vibration interference will affect the test results, so the weight of the marble platform is generally not less than 200 kg.

[0035] The sound card receives the signal from the host computer and output...

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Abstract

The invention relates to the technical field of earphone testing, in particular to an earphone voice pickup sensor vibration testing system and method, and the system comprises an upper computer, a vibration table, an acceleration sensor, a sound card, an adaptive amplifier and a power amplifier. The sound card receives signals transmitted by the upper computer and outputs the signals to the power amplifier, and the power amplifier amplifies the signals and then drives the vibration table to vibrate. The adaptive amplifier provides power for the acceleration sensor and transmits a signal fed back by the acceleration sensor to the sound card, and the sound card receives the signal and transmits the signal to the upper computer. The test method comprises the step of calibrating the vibration test system by using a factory calibration curve of the acceleration sensor. According to the system and the test method, the acceleration sensor is used for calibrating the amplitude of the vibration table, the problem that the amplitudes of the vibration tables of multiple sets of test systems are inconsistent under the same frequency is solved, copying of the vibration test systems is facilitated, and the system and the method have the advantages of accurate test result, high efficiency, good stability and the like and can meet the requirement of batch test of a production line.

Description

technical field [0001] The invention relates to the technical field of earphone testing, in particular to an earphone voice pickup sensor vibration testing system and a vibration testing method. Background technique [0002] The voice pick-up sensor is an important part of the earphone, among which the bone conduction earphone voice pick-up sensor is a vibration audio sensing element designed based on the testing principle of the acceleration sensor. It is mainly used in wireless Bluetooth headsets, underwater communications, hearing aids and all high-end It is used for anti-noise communication in special noise environment. Bone conduction is a sound conduction method, which converts sound into mechanical vibrations of different frequencies, and transmits sound waves through the human skull, bone labyrinth, inner ear lymph fluid, spiral organ, and auditory center. Compared with the classic sound conduction method of generating sound waves through the diaphragm, bone conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R29/00H04R1/10
CPCH04R29/00H04R1/10
Inventor 赵立燕赵立伟王吉伦
Owner SHANDONG TRANSPORT VOCATIONAL COLLEGE
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