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Multi-frequency antenna combination structure and method for mining radio wave perspective

A technology of radio wave perspective and multi-frequency antenna, applied in the direction of antenna support/installation device, electrical components, transmission system, etc., can solve the problem of poor consistency of transmission power, achieve consistency, realize automatic tuning, and solve the problem of transmission power The effect of poor consistency

Pending Publication Date: 2021-11-30
CHINA COAL TECH ENG GRP CHONGQING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a multi-frequency antenna combined structure and method for mining radio wave perspective, which solves the technical problem of poor consistency of transmission power in the prior art

Method used

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  • Multi-frequency antenna combination structure and method for mining radio wave perspective

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Embodiment 1

[0035] The embodiment is basically as attached figure 1 As shown, it includes: a transmitter, the output terminal of the transmitter is connected with a tuning component, the output terminal of the transmitter is connected with the input terminal of the tuning component through the first interface, and the tuning component is used to convert the low voltage output by the transmitter into a high voltage The tuning component is connected to a transmitting antenna, the output end of the tuning component is connected to the transmitting antenna through the second interface, and the transmitting antenna is used to transmit the tuned high voltage;

[0036] It also includes: a magnetic sensor, the magnetic sensor is connected to the transmitting antenna, and the magnetic sensor is used to collect the current value on the transmitting antenna; the magnetic sensor is connected to a microprocessor, and the microprocessor is connected to an adjustable capacitor array; the microprocessor i...

Embodiment 2

[0045] The only difference from Embodiment 1 is that the coupling transformer includes a magnetic ring and an enameled wire, and the enameled wire is tightly wound on both sides of the magnetic ring, one side of the magnetic ring is tightly wound by the enameled wire to form the primary coil of the coupling transformer, and the other side of the magnetic ring is tightly wound by the enameled wire The secondary coil of the coupling transformer is formed; the coupling transformer, the compensation capacitor, the adjustable capacitor, the first interface and the second interface are encapsulated as a whole through silica gel, which simplifies the structure and saves space.

Embodiment 3

[0047] The only difference from Embodiment 2 is that after the magnetic sensor collects the current value on the transmitting antenna, the current value on the transmitting antenna collected by the magnetic sensor is corrected. Generally speaking, magnetic sensors convert the magnetic property changes of sensitive components caused by external factors such as magnetic field, current, temperature, light, stress and strain into electrical signals to detect corresponding physical quantities, such as current, position, direction and other physical parameters. Due to the presence of magnetic materials inside the magnetic sensor, degaussing may occur under the action of external factors, such as external magnetic field, heating, high temperature, impact, so that the direction of the magnetic moment of each magnetic domain in the magnetic material will become inconsistent, resulting in magnetic weakening or Disappear, and then cause the current value on the transmitting antenna collec...

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Abstract

The invention relates to the technical field of radio wave emission, in particular to a multi-frequency antenna combination structure and method for mining radio wave perspective. The structure comprises a transmitter, the output end of the transmitter is connected with a tuning part, and the tuning part is used for converting low voltage output by the transmitter into high voltage; a transmitting antenna which is connected with the tuning part, and is used for transmitting tuned high voltage; a magnetic sensor which is connected with the transmitting antenna, and is used for collecting a current value on the transmitting antenna; a microprocessor which is connected with the magnetic sensor, is also connected with an adjustable capacitor array, and is used for judging whether the transmitting antenna is detuned or not according to the current value and sending a digital control instruction when the transmitting antenna is detuned; and the adjustable capacitor array which is connected in parallel with the transmitting antenna and dynamically adjusts the capacitance equivalent value according to the digital control instruction. According to the invention, the adjustable capacitor array can be intelligently controlled to realize automatic tuning, so that the same-frequency transmitting power of the transmitting antenna can be kept consistent.

Description

technical field [0001] The invention relates to the technical field of radio wave transmission, in particular to a multi-frequency antenna combined structure and method for mine radio wave perspective. Background technique [0002] Mine radio wave perspective devices are usually used to detect geological conditions, and use electromagnetic waves with multiple fixed-point frequencies as transmitting signals. After receiving the electromagnetic wave signal, the geological conditions in the working face can be inferred according to the amplitude and phase value of the electromagnetic wave signal field strength. [0003] At present, there are two kinds of mining radio wave perspective devices on the market, including seismic and electromagnetic. The resolution and accuracy of the seismic type are higher than those of the electromagnetic type, but the system structure is too large to be popularized and popularized. The electromagnetic type is fast, portable and The advantage of ...

Claims

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Application Information

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IPC IPC(8): H01Q1/22H04B1/04
CPCH01Q1/22H04B1/04
Inventor 李云波阎家光何昭友谢成梁覃海明张军康跃明雷凯丽黎冰
Owner CHINA COAL TECH ENG GRP CHONGQING RES INST
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