The Development Of The Transmitter Of Non-contact Electrode Survey Instrument Transmitter

The survey technology of non-contact electrode electrical method which is used for carrying on investigation of the engineering geology and the resource prospecting is a new electrical prospecting method. It obtains more and more applications. Non-contact electrode metering equipment is composed of transmitting system and receiving system. The transmitting system is the main equipment of the instrument, its technical specification directly influence the survey effect and working efficiency of the entire instrument. The research content of this thesis mainly aim at the demand of the high voltage, low current and some kinds of transmitting modes of not- contact measuring and therefore carrying on the research and the design of non-contact electrode survey instrument transmitter.The transmitter system of non-contact electrode survey instrument mainly includes two major parts: The switch electrical source of high-voltage output and the mainframe of the transmitter of non-contact electrode survey instrument. The prime task of high-voltage switch electrical source is to complete the transformation of DC-DC which is from DC 12V to DC 900V at most; The main part of transmitter transmits high-voltage PWM alternating current signal, completes the high-voltage contrary transformation,examines and displays the current in the process of transmitting by the non-contact electrode request.