Abstract: Self-validating pressure sensor is a new generation of sensor，which not only outputs the measurement value but also evaluates its performance online.A dual CPU system is implemented using DSP TMS320F2812 and TMS320C6713.It acquires the output signal of eight channels synchronously.After signal conditioning，the DSP completes fault detection，fault diagnosis and self-validating parameters calculating，then the Validated Measurement Value（VMV），Validated Uncertainty（VU） and Measurement Value Status（MVS） are output to the PC or users.Experimental results indicate that all self-validating functions of self-validating pressure sensor are implemented.With software modification of DSP，the system can be used in data acquisition and signal processing for other sensors.

摘要： 自确认压力传感器是一种不仅能输出压力测量值，并且能对其自身工作状态进行在线评估的新型压力传感器。系统利用TMS320F2812和TMS320C6713组成双处理器系统，完成对自确认压力传感器八路信号的同步采集和信号调理，然后利用DSP实现传感器的故障检测、诊断、自确认参数计算等复杂运算，将确认的测量值，测量值确认的不确定度，传感器状态输出给上位机或用户。实验结果表明，该系统实现了自确认压力传感器的各项功能，通过修改DSP软件部分，可以应用于其他传感器信号的数据采集与处理。