用 PWM 电路代替传统的传感器信号调理电路,可提高测量系统的精度和可靠性,具有较强的抗干扰能力。随着仪器仪表、变送器的发展,直接数字化的精密信号调理技术倍受人们重视。信号调理电路的功能是将传感器采集的非电量信号经过调理后变成可以测量的数字信号,然后再送入微处理器进行处理。此电路设计的优化程度如何,直接 Using PWM circuit instead of the traditional sensor signal conditioning circuit can improve the accuracy and reliability of the measurement system, with strong anti-interference ability. With the development of instrumentation and transmitters, direct digital precision signal conditioning technology has drawn great attention. The function of the signal conditioning circuit is to convert the non-electrical signal collected by the sensor into a measurable digital signal which is then sent to the microprocessor for processing. This circuit design optimization how, directly