基于混沌理论的电容测量系统

设计了一个基于混沌理论的电容测量系统，它利用混沌的初值敏感性，通过测量混沌轨道的较大距离来问接测量微小电容。与已有的电容测量系统相比，它对测量电路参数精确性要求不高，传感器只要具有相对稳定性就不会对测量结果有任何影响，其测量绝对误差不随被测电容大小而改变，只与符号序列的位数多少有关，待测电容值直接映射成二进制代码。给出了具体电路和实验结果，实验结果表明了利用混沌理论实现电参数测量的可行性。

A Measurement System for Capacitor Based on Chaos Theory

In this paper, we present a measuerment system for capacitor based on chaos theory, due to sensitive dependence on parameter, the tiny chang in parameter can be obtained by measuring distance of the corresponding chaotic orbits. The ordinary components and general sensor nearly have no effect to its precise, just not the same as using other measuremet system,and its error is not varied with the value of detected capacitor but only depends on the output series of symbolic, the detected value of capacitor can be transformed to binary code. The detailed scheme and experiment results are presented as well. The results show the feasibility of measurement using chaos theory.