Research On Key Technology Of Well-Ground Ert Transmitter
2012 INTERNATIONAL WORKSHOP ON INFORMATION AND ELECTRONICS ENGINEERING(2012)
Abstract
The detecting depth and accuracy of well-ground ERT technology are directly related to the transmit current waveform frequency, waveform patterns and current magnitude of the transmitter. PWM rectangular waves displayed in five waveform patterns, four frequency modes and five duty cycle modes are successfully achieved by using MSP430 in our system. The transmit current and voltage are also monitored during experimental operation. Bridge circuit is driven by EXB841 chip and protected by snubber circuit. The system has been tested and turned out to better preferably meet our demands. (c) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology
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Key words
well-ground ERT,MSP430,EXB841,IGBT,RCD snubber circuit
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