一种精度较高的智能气压表

利用集成硅气压传感器这种具有较大温度系数及非线性误差的典型传感器而设计一智能化的气压仪表，提出了较好地利用分段二次插值的方法，使非线性及温度误差降至完全可被忽略的程度，从而来提高仪表的精度；并提出了利用简易监视计数器等电路的设计来提高可靠性及合理的电路设计来降低功耗提高整机性能等一些完善而实用的方法。

INTRODUCTION OF A HIGHER ACCURACY INTELIGENCE BAROMETER

The paper introduces an inteligence barometer based on an integrated silicon pressure sensor that has a bigger temperature coefficient and nonlinear error with a scheme proposed of interpolation done twice in a piecewise way to reduce temperature error to innegligible extent, thereby improving pressure reading accuracy. Besides, developed is a circuit for a simple watch counter to raise the reliability with a rational circuit designed to decrease watt consumption and a set of practical methods presented to improve the performances.