Solution conductivity measuring instrument based on microcontroller
A microcontroller and measuring instrument technology, applied in the field of electrochemical measurement, can solve the problems of cumbersome operation, susceptibility to interference, and single function, and achieve the effects of low cost, convenient operation, and portability
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[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0021] Such as figure 1 As shown, this embodiment provides a solution conductivity measuring instrument based on a microcontroller, including a power supply module, an excitation signal generation module, a signal power amplification module, a conductivity cell circuit to be tested, a measurement signal back-end processing module, and a measurement signal Acquisition module, temperature detection module, microcontroller, expansion interface module, LCD display and keyboard input module, the circuit to be tested in the conductivity cell is composed of solution conductivity electrodes and voltage divider resistors connected in series, and the voltage divider resistor is an analog selection switch; The above microcontroller adopts STM32F407 processor. The microcontroller is connected to the excitation signal generation module to control and generate the r...
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