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Earth audio electrical instrument

An electrical instrument and audio technology, which is applied in the field of geophysical exploration, can solve the problems of limited promotion and no professional instrument that can be used alone, and achieve the effects of ensuring stability and accuracy, wide application range, and light instrument

Inactive Publication Date: 2012-08-01
上海柏艾环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is valued by the majority of geophysicists. At present, only imported similar instruments are sold in China. There is no professional instrument that can be used alone, and the promotion is subject to some restrictions.

Method used

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  • Earth audio electrical instrument
  • Earth audio electrical instrument
  • Earth audio electrical instrument

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Embodiment

[0026] Such as figure 1 As shown, a kind of earth audio frequency electrical instrument includes a main control electrical appliance 1, a display 2, a keyboard 3, a data memory 4 and two identical signal input modules 5, and the two signal input modules 5 include sensors 51, Preamplifier attenuation circuit 52 , power frequency suppression circuit 53 , potential compensation circuit 54 , preamplifier circuit 55 , programming amplifier circuit 56 , frequency selective amplifier circuit 57 and AD sampling circuit 58 .

[0027] The main controller 1 is respectively connected with the display 2, the keyboard 3, the data memory 4 and the AD acquisition circuit 58, and the earth audio signal is collected by the sensor 51, and then passes through the pre-amplifier attenuation circuit 52, the power frequency suppression circuit 53, the potential compensation circuit 54, the front After being processed by the amplifying circuit 55, programming amplifying circuit 56, frequency-selective...

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Abstract

The invention relates to an earth audio electrical instrument. The earth audio electrical instrument comprises a master controller, a display, a keyboard, a data memory and two same signal input modules, wherein the two signal input modules are connected with the master controller; and the master controller is respectively connected with the display, the keyboard and the data memory. Compared with the prior art, the earth audio electrical instrument has the advantages of high measurement precision, convenience for use, high speed, high efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of geophysical exploration, in particular to a geodetic audio-frequency electrical instrument. Background technique [0002] The earth audio frequency instrument uses the earth's natural audio signal (generally 20-5000HZ) as the field source. This type of instrument has the advantages of low exploration cost, high efficiency, large exploration depth, wide application range, and is not subject to high-resistance and low-resistance objects. Impact, suitable for field and urban use. It is valued by the majority of geophysicists. At present, only imported similar instruments are sold in China. There is no professional instrument that can be used alone, and the promotion is subject to some restrictions. Contents of the invention [0003] The object of the present invention is to provide a high-precision, easy-to-use, fast and efficient geodetic electrometric instrument in order to overcome the above-mentioned ...

Claims

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Application Information

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IPC IPC(8): G01V1/00
Inventor 梁玉棠
Owner 上海柏艾环保科技有限公司
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