Nuclear magnetic resonance water detector transmitter energy management system

Abstract

A nuclear magnetic resonance water detector transmitter energy management system comprises a dynamic compensation capacitor charger. The dynamic compensation capacitor charger comprises a battery packunit, a control circuit power supply unit, a DC-DC boost circuit unit, a constant-current source unit, a signal acquisition unit, an isolation unit, and a control unit. The battery pack unit is connected to the control circuit power supply unit. The constant-current source unit comprises a high-power MOS transistor, an operational amplifier, a first sampling resistor, and a first DAC module. A storage capacitor is connected to a first isolating DC-DC module power supply, a second isolating DC-DC module power supply, and the first sampling resistor. The signal acquisition unit includes a Halldevice, a second sampling resistor, a first conditioning circuit, and an ADC sampling chip. The nuclear magnetic resonance water detector transmitter energy management system, by dynamically adjustingthe supply voltage and the output current of the constant-current source, can realize the high-efficiency management of the storage energy of the capacitor while satisfying instrument performance requirements during the working process of a transmitter.

Description

technical field [0001] The invention relates to the technical field of energy storage management, in particular to an energy management system for a nuclear magnetic resonance water finder transmitter, which is applied in the field of water resource exploration. Background technique [0002] In order to excite the hydrogen protons in groundwater, the transmitter of the nuclear magnetic resonance water detector must have the ability to output high-current and high-voltage electromagnetic pulses instantaneously. For this, electrolytic capacitors (storage can) to charge, and after reaching the predetermined value, discharge the excitation coil to achieve instantaneous high power output. [0003] However, there are two disadvantages in using energy storage capacitors to charge and discharge: first, during the discharge process of energy storage capacitors, the output voltage and current of the capacitors will decay rapidly with time, which will directly affect the amplitude of t...

AI Technical Summary

Problems solved by technology

[0005] In view of this, in view of the problem that the output voltage and current of the transmitter of the nuclear magnetic resonance water finder decay with time, and the lack of an energy management system suitable for charging energy storage capacitors with large capacity and large voltage span

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