Abstract
The change of electrolyte temperature in electrochemical machining results in the change of conductivity, and then affect the machining accuracy. A multi-channel temperature acquisition system based on STM32 was designed in order to monitor the temperature distribution in the process of processing, Adopting the structure of "Main Controller + Function Module", the acquisition module is composed of multiple DS18B20 temperature sensors, and the STM32F103RCT6 single chip microcomputer is used as the system control center to complete the temperature acquisition and storage, the precision of temperature data acquisition is improved significantly by digital filtering anti-interference processing. In order to verify the reliability and stability of the acquisition system, the temperature measurement and acquisition test is carried out. The test results show that the system has rapid response, strong operability and high acquisition accuracy.
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