Nuclear magnetic resonance water detector transmitter energy management system

An energy management system, nuclear magnetic resonance technology, applied in the direction of electron magnetic resonance/nuclear magnetic resonance detection, electric/magnetic detection for well logging records, etc., can solve the problem of lack of energy management system for charging energy storage capacitors, etc. Achieve high-efficiency management, meet instrument performance requirements, and ensure zero attenuation

Pending Publication Date: 2018-11-02
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Nuclear magnetic resonance water detector transmitter energy management system

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Embodiment Construction

[0022] Such as figure 1 As shown, a nuclear magnetic resonance water finder transmitter energy management system includes a dynamic compensation capacitor charger, and the dynamic compensation capacitor charger includes a battery pack unit 001, a control circuit power supply unit, a DC-DC boost circuit unit, a constant Flow source unit, signal acquisition unit, isolation unit, control unit.

[0023] The battery pack unit 001 is powered by parallel connection of large-capacity batteries, and the capacity of the battery pack is not less than 9000AH.

[0024] The battery pack unit 001 is connected to a control circuit power supply unit, and the control circuit power supply unit includes a first isolated DC-DC module power supply 008 and a second isolated DC-DC module power supply 015, and the first isolated DC-DC module power supply 008 is used for The constant current source unit is isolated for power supply, and the second isolated DC-DC module power supply 015 is used for iso...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/32
CPCG01V3/32
Inventor 谭超胡诗俊李宗燎王家成乐周美龚晓辉
Owner CHINA THREE GORGES UNIV
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