液位测量仪的研制

Development of liquid level instrument

介绍了压力变送器、温度变送器和测量仪表。温度测量元件和温度变送器电路性能稳定 ,压力传感器和变送器电路重复性能好。利用单片机的汇编语言编制一组误差补偿程序 ,有效地补偿了压力传感器的温度、非线性误差 ,提高了测量仪的测量精度 ,测量准确度≤ 0 .1%± 1字。

Pressure transmitter,temperature transmitter and instrument are proposed.The functions of temperature measure cell and temperature transmitter circuit are stable.The repeat functions of pressure sensor and changer are very good.Using single chip processor writes error compensation programs.Non-linear error,temperature drift error are compensated effectively.The instrument accuracy is raised,accuracy≤0.1%±1digital.