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Underground Coal Mine Dual Frequency Radio Wave Receiving Antenna

A technology for receiving antennas and radio waves, which is applied in the field of underground radio wave reception in coal mines. It can solve the problems of receiving coil collision deformation, affecting detection accuracy, and increasing underground construction time, so as to prevent drift, improve detection accuracy, and avoid detection errors.

Active Publication Date: 2018-11-20
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The receiving coil is used to receive the radio wave signal of a specific frequency in the coal mine. In the mine radio wave perspective method exploration, due to the limitation of the receiving device, the signal often uses one working frequency for construction. If multiple frequency parameters are used for detection, it will be It will double the underground construction time and affect the construction efficiency
[0003] At present, the radio wave receiving antenna used in coal mines usually uses adhesive tape to fix the receiving antenna on the shell. This kind of receiving coil is easily deformed by external collisions, which will change the receiving frequency of the coil and affect the detection accuracy.

Method used

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  • Underground Coal Mine Dual Frequency Radio Wave Receiving Antenna
  • Underground Coal Mine Dual Frequency Radio Wave Receiving Antenna
  • Underground Coal Mine Dual Frequency Radio Wave Receiving Antenna

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] An embodiment of the present invention provides an underground dual-frequency radio wave receiving antenna in a coal mine, such as figure 1 , 2 As shown, the receiving antenna includes a housing 1, a receiving coil 2, and a control circuit 3, the housing 1 is made of glass fiber material, the receiving coil 2 is arranged in the housing 1 and molded integrally; the control circuit 3 is arranged in The slot of the handle part of the shell 1 is connected with the receiving coil 2 through a wire.

[0017] Such as image 3 As shown, the control circuit 3 includes a first wire socket J1, a seco...

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Abstract

The invention discloses a double-frequency radio wave receiving antenna for an underground coal mine. The receiving antenna comprises a housing, a receiving coil and a control circuit, wherein the housing is made of a glass fiber material; the receiving coil is arranged in the housing and the housing and the receiving coil are integrally molded by pressing; and the control circuit is arranged in a clamping groove in a handle part of the housing and is connected with the receiving coil through a wire. The receiving coil is adopted as the antenna for receiving a radio wave signal with a specific frequency; frequency-selecting is carried out on two working modes with different frequencies of 175 kHz and 310 kHz through the control circuit; a hard glass fiber material with relatively light weight is utilized as the housing, so that the loss of the receiving coil when the radio wave signal is received is avoided; a detection error caused by coil deformation is avoided by an integral molding technology; drift of each working frequency is prevented; and the detection accuracy of coil-type receiving is improved.

Description

technical field [0001] The invention belongs to the technical field of radio wave reception in underground coal mines, and in particular relates to an underground dual-frequency radio wave receiving antenna in coal mines. Background technique [0002] The receiving coil is used to receive the radio wave signal of a specific frequency in the coal mine. In the mine radio wave perspective method exploration, due to the limitation of the receiving device, the signal often uses one working frequency for construction. If multiple frequency parameters are used for detection, it will be It will double the underground construction time and affect the construction efficiency. [0003] At present, the radio wave receiving antenna used in coal mines usually uses adhesive tape to fix the receiving antenna on the shell. This kind of receiving coil is easily deformed by external collisions, which will change the receiving frequency of the coil and affect the detection accuracy. Contents ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q7/00H01Q1/42H01Q23/00E21B47/13
CPCE21B47/13H01Q1/42H01Q7/00H01Q23/00
Inventor 赵兆张仲礼刘磊王继矿范涛宁殿艳赵睿
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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