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Full waveform voltage and current recording device applied for MTEM transmitters

A technology of recording device and transmitter, which is applied in the direction of measuring device, digital variable/waveform display, measuring electrical variable, etc. It can solve problems such as noise in the instrument, nonlinearity of the falling edge of the emission current, and difficulty in developing supporting probes, etc., to achieve data acquisition. Stable, long-term effect of data collection

Active Publication Date: 2016-06-15
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are still problems that need to be solved in domestic MTEM instruments, such as inaccurate synchronization of quartz clocks, non-linear and oscillating emission current falling edge time, unable to automatically adjust or self-test the falling edge time of emission current, difficulty in developing supporting probes, and insufficient anti-interference ability , the instrument has problems such as internal noise

Method used

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  • Full waveform voltage and current recording device applied for MTEM transmitters
  • Full waveform voltage and current recording device applied for MTEM transmitters
  • Full waveform voltage and current recording device applied for MTEM transmitters

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Embodiment Construction

[0036] A full-waveform voltage and current recording device applied to an MTEM transmitter includes a hardware part and a software part. The hardware part of the device includes a front-end conditioning circuit (2), a data acquisition circuit (3), a main control circuit with FPGA as the core (4), a PC upper computer (5), a high-precision atomic clock circuit (6) and a power supply circuit (7). One end of the front-end conditioning circuit (2) is connected to the MTEM transmitter (1), and the other end is connected to the data acquisition circuit (3); one end of the data acquisition circuit (3) is connected to the front-end conditioning circuit (2 ), the other end is connected with the main control circuit (4) with FPGA as the core; the main control circuit (4) with FPGA as the core is connected with the data acquisition circuit (3), PC host computer ( 5) It is connected with the high-precision atomic clock circuit (6); the power supply circuit (7) is connected with the front-...

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Abstract

The invention discloses a full waveform voltage and current recording device applied for MTEM (multichannel transient electromagnetic method) transmitters. The device comprises a hardware part and a software part. The hardware part comprises a front end conditioning circuit, a data acquisition circuit, a high precision atomic clock circuit, a master control circuit which has FPGA as the core, a power supply circuit, and a PC upper computer. The software part comprises a HDL program of the FPGA, a USB chip firmware program, a MSP 430 tamed atomic clock program and a PC upper computer program. The device has advantages such as high precision and low noise. By use of the device, data can be recorded and transmitted to a receiver in real time, and long time data acquisition of the complete computer is stable and reliable.

Description

technical field [0001] The invention belongs to the field of information recording equipment, and in particular relates to a full waveform voltage and current recording device applied to an MTEM transmitter. Background technique [0002] For a country rich in mineral resources like my country, it is very important to explore and rationally exploit our mineral resources. Electrical methods (including conduction and induction electrical methods) are important methods for metal ore exploration; the conductivity and dielectric properties of rock ores Magnetic properties and permeability are the main physical parameters used in electrical prospecting. At present, the most prominent problem existing in these electrical prospecting methods is the serious interference in the exploration area, and the most direct way of anti-interference is to increase the field source transmission power, expand the transmitting and receiving distance (conduction type electric method) and reduce the o...

Claims

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Application Information

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IPC IPC(8): G01V13/00G01R13/00G01R19/25
CPCG01R13/00G01R19/25G01V13/00
Inventor 张启升邓明王猛赵晓孔强张新月张盛泉刘昇辉袁振中何瑞昊李树寒崔辰元杨杰
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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