Design of 500 A Super-power Transient Electromagnetic Instrument
QIN Haiming
Abstract：The metal rock-bolts, anchor nets, large mechanical and electrical equipment and other factors will affect the detection effect of the transient electromagnetic instrument, for this purpose, a superpower transient electromagnetic instrument was designed in order to reduce the influence of these interference factors. The transmitter of this instrument adopts PWM controller as the core processing unit and can pre-set the current value with MCU microprocessor so as to ensure the transmitting current of the instrument to keep constant. The maximum transmitting current of the high-power transient electromagnetic transmitter with constant current source can reach 500 A, which significantly improvd the detection effect of the instrument;AD design was adopted for the receiver of the transient electromagnetic transmitter, FPGA was used to control two AD samplers, this can realize multiple superimposition, suppress the noise interference and improve the detection accuracy.
Keywords：super powertransient electromagnetic instrumentconstant current source
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 42-44,49 )