关键词: 压阻式加速度传感器;计算机仿真;数学模型

    摘 要:目的 建立非接触生命参数检测系统与压阻式加速度之间的数学模型. 方法 理论推导压阻式加速度传感器和检测系统自抖动干扰回波的数学公式，并选用压阻式加速度传感器对本文讨论的数学模型进行计算机仿真分析. 结果 给出了计算机仿真分析结果. 结论 理论分析和计算机仿真分析结果相符，而且该模型能够为非接触生命参数检测系统自抖动干扰抑制提供理论指导.

    Construction of mathematical model between non┐contact detecting system for life parameters and piezoresistive acceleration sensor

    LU Guo-Hua，WANG Jian-Qi，YANG Guo-Sheng，WANG Hai-Bin，JIN Xi-Jing，NI An-Sheng，ZHU Xin-Ya

    Department of Electronics，Faculty of Biomedical Engineering，Fourth Military Medical University，Xi'an710033，China

    Keywords:piezoresistive acceleration sensor;computer simu-lation;mathematical model

    Abstract:AIM To construct the mathematical model be-tween the non-contact detecting system for life parameters and piezoresistive acceleration sensor.METHODS Mathe-matic model for the piezoresistive acceleration sensor and the return wave of self-dithering of the detecting system was con-structed by using the principle of the senor and detecting sys-tem ......