Dual trapezoidal wave transmitting system with controllable falling edge and control method

A technology of trapezoidal wave and square wave control, which is applied in radio wave measurement system, sound wave re-radiation, utilization of re-radiation, etc. It can solve the problem that the dual parameters of resistivity and polarizability cannot be detected at the same time, so as to improve stability , The effect of improving the detection accuracy

Active Publication Date: 2018-06-29
JILIN UNIV
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Problems solved by technology

[0006] The invention provides a dual trapezoidal wave emission system and control method with a controllable falling edge, which solves the problem that the dual parameters of resistivity and polarizability cannot be detected simultaneously

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  • Dual trapezoidal wave transmitting system with controllable falling edge and control method
  • Dual trapezoidal wave transmitting system with controllable falling edge and control method
  • Dual trapezoidal wave transmitting system with controllable falling edge and control method

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[0030] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] see figure 1 combine Figure 5As shown, the double trapezoidal wave emission system with controllable falling edge provided by the present invention is mainly composed of main control circuit 1, double synchronization module 2, button 3, liquid crystal display screen 4, optocoupler drive combination 5, emission bridge circuit 6, high voltage Transient suppression diode 7, low-voltage transient suppression diode circuit 8, absorption circuit 9, transmitting coil 10, series battery pack 11, lithium battery 12, low-voltage power supply 13 and high-voltage power supply 14, wherein the dual synchronization module 2 has B...

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Abstract

The invention relates to the field of transient electromagnetic emission, in particular to a dual trapezoidal wave transmitting system with a controllable falling edge and a control method. The systemcomprises a main control circuit, an optocoupler drive circuit, a transmitting bridge circuit, a high voltage transient suppression diode, a low voltage transient suppression diode circuit, a seriesbattery pack and a transmitting coil, wherein the main control circuit is connected with the transmitting bridge circuit through the optocoupler drive circuit, and the transmitting bridge circuit andthe transmitting coil are connected; the series battery pack is connected with the transmitting bridge circuit to provide power for transmission, and the high voltage transient suppression diode and the low voltage transient suppression diode circuit are connected in parallel at both ends of the transmitting coil. The system can simultaneously generate a set of trapezoidal wave emission current with different turning-off time, the current can be used for stimulating and measuring induction field signals and polarization response respectively, and the system achieves two-parameter simultaneousdetection of electrical resistivity and polarizability, and improves detection precision.

Description

technical field [0001] The invention relates to the field of transient electromagnetic emission, in particular to a dual trapezoidal wave emission system and control method with controllable falling edges. Background technique [0002] Due to the limitations of the detection system, the traditional transient electromagnetic method can only stimulate and measure electromagnetic induction signals, and the measurement parameters are single, the interpretation parameters are single, and the accuracy of data interpretation is low, which is the bottleneck in the development of the current transient electromagnetic method. Multi-parameter joint detection is an effective method to improve the accuracy of TEM detection. The induced polarization effect is a common phenomenon existing in the earth. Simultaneous detection of transient electromagnetic and induced polarization signals can effectively improve the interpretation accuracy of the earth. The time-domain electromagnetic inducti...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/08
CPCG01V3/083G01V2003/084Y02B70/10
Inventor 嵇艳鞠姜元杜尚宇王远黎东升关珊珊栾卉
Owner JILIN UNIV
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