Circuit system of resistivity measuring instrument

Abstract

The invention relates to a circuit system of a resistivity measuring instrument. The system comprises a single-chip microcomputer control module, a power supply module, an on-off test module, a resistance measurement module, a temperature measurement module, a timing module, a resistivity calculation module, a Bluetooth transmission module, a data storage module and a calibration module, wherein the single-chip microcomputer control module is a center control module, the resistance measurement module, the temperature measurement module and the timing module are measuring core function modules. With the circuit system provided by the invention adopted, the resistivity measuring instrument provided with the circuit system can have a temperature measurement function and a resistance measurement function, and sufficient temperature measurement time can be ensured; one-click operation of measurement work can be realized with measurement precision ensured, and therefore, convenience of the measurement work can be improved, and workload of the measurement work can be decreased. The circuit system further has an on-off test function and a system calibration function.

Description

technical field [0001] The invention relates to the technical field of resistivity measuring devices, in particular to a circuit system of a resistivity measuring instrument. Background technique [0002] Existing mud resistivity measurement devices generally use the mud exposed four-level measurement method to measure mud resistivity. Due to the poor thermal insulation performance of mud and the temperature has a great impact on the measurement results of resistivity, traditional mud resistivity measurement devices cannot detect resistance. The temperature is detected at the same time, so the measurement result of resistivity is not accurate enough. For the resistance measuring instrument with temperature measurement function, the accuracy of temperature measurement cannot be fully guaranteed, which will have an adverse effect on the resistivity measurement result. [0003] In addition, the traditional mud resistivity measurement device adopts a box structure with a large ...

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Problems solved by technology

[0002] Existing mud resistivity measurement devices generally use the mud exposed four-level measurement method to measure mud resistivity. Due to the poor thermal insulation performance of mud and the temperature has a great impact on the measurement results of resistivity, traditional mud resistivity measurement devices cannot detect resistance. The temperature is detected at the same time, so the measurement result of the resistivity is not accurate enough

For the resistance measuring instrument with temperature measurement function, the accuracy of temperature measurement cannot be fully guaranteed, which will have an adverse effect on the resistivity measurement results

[0003] In addition, the traditional mud resistivity measurement device adopts a box structure with a large dedicated storage space. The wiring and measurement process is complicated and difficult to master, which brings great difficulties to the measurement of resistivity.

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