Electromagnetic exploration transmitting system based on super capacitor energy storage

Abstract

The invention relates to an electromagnetic exploration transmitting system based on super capacitor energy storage. The electromagnetic exploration transmitting system based on the super capacitor energy storage uses one power generation unit, one rectification filter circuit, one super capacitor bank energy conversion circuit, one inverter bridge transmitting circuit, one voltage detection circuit, one current detection circuit, one control circuit and a transmitting electrode assembly. The power generation unit provides a three-phase power supply for the system; the rectification filter circuit achieves alternating current-direct current (AC-DC) conversion of the power supply and provides stable direct current bus voltage for the system so as to facilitate charge-discharge of a capacitor bank in operation; the super capacitor bank energy conversion circuit achieves energy storage and release; the inverter bridge transmitting circuit achieves DC-AC conversion and transmits signals; the current detection circuit and the voltage detection circuit achieve real-time detection of output current and voltage and provide real-time signals for the control circuit; the control circuit is a central processing unit and achieves pulse-width modulation (PWM) control so as to obtain stable and reliable transmitting signals; and an electrode is a system signal transmitting port.

Description

technical field [0001] The invention relates to an electromagnetic prospecting launch system based on supercapacitor energy storage, belonging to the technical field of electromagnetic prospecting. Background technique [0002] Polarizability method is a traditional geophysical prospecting method, and it is the only effective method that can directly find ore. The polarizability method is widely used and must be used in the exploration of polymetallic deposits. The polarizability meter consists of two parts, namely the transmitting system and the receiving system. As an important branch of the polarizability instrument, the electromagnetic prospecting launch system based on supercapacitor energy storage plays a very important role in the process of geophysical electromagnetic prospecting. The greater the transmission power of the transmitting system and the stronger the electric field signal, the easier it is for the receiving system to obtain high-signal-to-noise ratio, a...

AI Technical Summary

Problems solved by technology

[0003] At present, among the polarimeters, the emission system technology is relatively mature, mainly the first-generation polarimeter produced by the Canadian SCINTREX company and the second-generation polarimeter produced by Chongqing Geological Instrument Factory. The emission system of the two-generation polarimeter The common feature is that they can directly search for ore and groundwater resources. The disadvantage is that the energy utilization rate is low, the whole system is heavy and bulky, and it is inconvenient for mountain operations.

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