Receiving probe in mine radio wave hole

Abstract

The invention discloses a receiving probe for a mine radio wave bore. The receiving probe comprises a shell, a magnetic antenna and a control circuit, wherein the shell is made of nylon, the magnetic antenna and the control circuit are arranged inside the head of the shell, and the tail of the shell is of a threaded structure. The detection distance of the traditional mine radio wave perspective method is increased to over 200 meters; and by boring, the receiving probe is delivered to a position nearby an abnormal structure area inside a working face for near distance detection, so that the detection precision is improved, the resolution of the mine radio wave perspective method is improved, and then the development and the application of a radio wave exploration technology in coal mine boring are promoted.

Description

technical field [0001] The invention belongs to the technical field of radio wave receiving devices in coal mine underground holes, and in particular relates to a mine-used radio wave hole receiving probe. Background technique [0002] In traditional mine radio wave perspective exploration, the construction method is that the roadway on one side of the working face transmits signals, and the roadway on the other side receives signals. However, due to the explosion-proof requirements of underground products in coal mines, the power of mining instruments is limited, resulting in the transmission output. The power of radio waves is limited, and the signal will be rapidly attenuated after penetrating the coal seam. [0003] At present, the existing explosion-proof radio wave perspective instrument in coal mines generally has a perspective distance of about 150 meters in the coal seam, while the width of the working face of newly opened coal mines in my country is mostly more tha...

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Problems solved by technology

[0002] In traditional mine radio wave perspective exploration, the construction method is that the roadway on one side of the working face transmits signals, and the roadway on the other side receives signals. However, due to the explosion-proof requirements of underground products in coal mines, the power of mining instruments is limited, resulting in the transmission output. The power of radio waves is limited, and the signal will be rapidly attenuated after penetrating the coal seam

[0003] At present, the existing explosion-proof radio wave perspective instrument in coal mines generally has a perspective distance of about 150 meters in the coal seam, while the width of the working face of newly opened coal mines in my country is mostly more than 200 meters, so the traditional receiving antenna is more suitable for more than 200 meters. The internal signal of the wide working face cannot be received well, which affects the detection distance of the downhole radio wave perspective technology

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