冲击测量系统的指数波响应

The exponential wave response of impulse measuring systems

探讨指数波响应应用于冲击测量系统的问题。对于线性系统，总的指数波响应时间等于各部件指数波响应时间之和，方波响应时间也有同样的性质。当冲击测量系统在高原下呈现非线性时，Ｄｕｈａｍｅｌ积分不再适用，建议由指数波响应来代替原来的方波响应。文中计算并给出冲击测量系统和数字仪的指数波响应的允许误差限，判据十分简单。

Application of exponential wave response to impulse measuring systems is discussed. For linear systems, the total exponential wave response time equals the sum of the exponential response time of its individual parts. The step response tim has the same feature. When an impulse measuring system presents nonlinearity at high frequency,Duhamel's integral is no longer applicable, and the exponential wave response is proposed instead of the original step response. The permissible error limits for the exponential wave responses of the impulse measuring systems and digitizers are given from calculation. These criteria are quite simple.