Adaptive impedance matching device

Abstract

The invention discloses an adaptive impedance matching device. The adaptive impedance matching device comprises a main control module of a single-chip microcomputer; a GPS time service module; a display module; a temperature sensor; a Hall current sensor in communication with the main control module of the single-chip microcomputer to perform current acquisition; a Hall voltage sensor communicatedwith the main control module of the single-chip microcomputer for voltage acquisition; a WIFI module which is connected with the main control module of the single-chip microcomputer and is responsible for receiving the frequency information transmitted by a transmitter; a current frequency acquisition unit connected with an external pulse counting channel of a timer of the main control module ofthe single-chip microcomputer for frequency acquisition; an SD card storage module; a motor driving module; a relay module which and the motor driving module are connected with the main control moduleof the single-chip microcomputer; and an alternating current contactor module connected with the relay module. The adaptive impedance matching device can thoroughly solve the problem of high-frequency large-current emission and effectively suppress environmental interference.

Description

technical field [0001] The invention relates to the field of detection of deep mineral resources and geological structures, in particular to an adaptive impedance matching device. Background technique [0002] Controlled source audio frequency magnetotelluric method (CSAMT) is widely used in the detection of deep mineral resources and geological structures, and plays an important role in national economic construction and earth science research. [0003] However, in the case of a long electric dipole-source distance, the transmitting circuit of the existing transmitter cannot supply high frequency and large current, resulting in the attenuation of the high frequency artificial source signal before it propagates to the effective detection area, and cannot effectively suppress the environment Interference reduces the signal-to-noise ratio of measured data at long-distance transmission distances, and cannot provide strong technical support for the CSAMT method to enhance the re...

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Problems solved by technology

[0003] However, in the case of a long electric dipole-source distance, the transmitting circuit of the existing transmitter cannot supply high frequency and large current, resulting in the attenuation of the high frequency artificial source signal before it propagates to the effective detection area, and cannot effectively suppress the environment Interference, which reduces the signal-to-noise ratio of the measured data at a long distance, cannot provide strong technical support for the CSAMT method to enhance the resolution of underground electrical characteristics

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