Force test device for earphone head ring
A technology of testing device and headphone head, applied in the direction of measuring device, force/torque/power measuring instrument, instrument, etc., can solve the problem that it is difficult to ensure the horizontal interval between two earphones and the height of the head ring, the operation is inconvenient, and the measurement accuracy cannot meet the requirements. and other problems, to achieve the effect of simple structure, simple operation, accurate and reliable measurement
Inactive Publication Date: 2012-06-13
山东省产品质量监督检验研究院
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Problems solved by technology
[0003] The headband force of the earphones is currently tested with a spring tension meter, but this method is difficult to ensure the horizontal distance between the two earphones and the height of the headband, and the measurement accuracy cannot meet the requirements, and it is also inconvenient to operate.
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[0020] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment includes a base 1, which is provided with left-right symmetrical dovetail grooves 11, 12, and a casing is arranged between the two dovetail grooves 11, 12, and the two dovetail grooves 11, 12 are fastened by fastening screws 9 The fixed frame A 3 and the fixed frame B 4 are installed separately, the upper part of the fixed frame A 3 is connected with the artificial ear 6 by screws, the upper part of the fixed frame B 4 is connected with the pressure sensor 7 by screws, and the artificial ear B 5 is installed On the pressure screw of the pressure sensor 7, the pressure sensor 7 is connected to the pressure display 8 through the signal line; There is a vertical scale 16; the upper surface of the base 1 is fixed with a horizontal scale 13 parallel to the dovetail grooves 11, 12; the four feet of the base 1 are equipped with adjustable height knurled nuts 10, the base 1 The uppe...
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The invention relates to an earphone detection device, and in particular discloses a force test device for an earphone head ring. The force test device for the earphone head ring comprises a base, and is characterized in that bilaterally symmetrical dovetail grooves are arranged on the base, a sleeve is arranged between the two dovetail grooves, a fixed support A and a fixed support B are respectively movably arranged in the two dovetail grooves through fastening bolts, the upper part of the fixed support A is integrally connected with an artificial ear A through a bolt, the upper part of the fixed support B is integrally connected with a pressure sensor through a bolt, and an artificial ear B is arranged on a compression screw of the pressure sensor. The force test device for the earphone head ring, provided by the invention, has the advantages of simple structure, simple operation, reasonable design, flexible application, and accurate and reliable measurement of the pressure of the earphone head ring, and can be suitable for wide popularization and application.
Description
(1) Technical field [0001] The invention relates to an earphone testing device, in particular to an earphone head ring force testing device. (2) Background technology [0002] At present, there is no special measuring device for headphone headband force testing. The pure tone audiometer test procedure JJG388-2001 requires that the headphone headband force be tested when the horizontal distance between the two headphones is 145mm and the height of the headband is 129mm. It is related to the results of hearing diagnosis and people's physical and mental health. [0003] The headband force of the earphones is currently tested with a spring tension meter, but this method is difficult to ensure the horizontal distance between the two earphones and the height of the headband, the measurement accuracy cannot meet the requirements, and it is inconvenient to operate. (3) Contents of the invention [0004] In order to make up for the deficiencies of the prior art, the invent...
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Inventor 左汉锋陈恒亮孙玉泉陈威张继斌辛峰孙继凯
Owner 山东省产品质量监督检验研究院