基于双传感器的精密液压力自动发生系统

本文介绍了一种精密液压力自动发生系统,它采用由普通硅压阻和数字石英谐振双压力传感器构成的模拟、数字PID双闭环反馈控制方案,采用了多参量反馈控制技术。该系统具有良好的动态响应和控制精度,为压力的检定和测试提供了精密压力源,可以用于压力表、压力变送器和压力传感器的自动检定和校准。

The automatic precision hydraulic pressure generating system based double sensors

An automatic precision hydraulic pressure generating system is introduced. The digital crystal pressure sensor and the common silicon pressure sensor are used. The control methods of analogy, numeric PID double closed-loop and multi parameters feedback are adopted. The system has a good dynamic response and control accuracy. As it provides a standard source for pressure verification and test, it can be used to automatically calibrate pressure gauges, pressure transducers and pressure sensors.