提高热电阻测温装置抗干扰能力的研究

Improving Anti-interference Ability of Temperature Measurement Devices

根据测温装置在现场运行的情况,提出了改进信号处理回路、软件中增加缓冲环节、采用具有滤波功能的A/D芯片等几种增强抗干扰能力的措施,并分别进行了现场试验,比较每种措施的性能,最终通过实践,比较成功地提高了测温装置对于环境干扰的抵抗能力,为其他类似的模拟量采集提供了参考。

According to the operation of temperature measurement devices, some measures to improve anti-interference ability are put forward, such as improving the signal processing circuit, increasing the partition of integration in software and using the A/D chip with the ability of filtering, and relevant field tests are carried out. The performances of these measures are compared. Practice shows that, the anti-interference ability of the devices is improved. The result is helpful to other similar analog measurement.