对数字式电秒表的校准及测量不确定度实例分析

Calibration on Digital Electronic Stopwatch and the Case Analysis of the Measurement Uncertainty

数字式电秒表在时间测量上是一个重要的计量器具,它可以测量一个信号持续的时间间隔,也可以测量两个信号瞬间动作时的时间间隔,以415型数字式电秒表为例,对数字式电秒表的校准原理和方法,及用标准时间间隔发生器校准数字式电秒表的不确定度做了详细的描述。

Digital electronic stopwatch is an important measuring instrument in time measurement. It can measure the time interval of continuous signal and the interval of the two signal instantaneous action. Taking the 415 type digital stopwatch as an example,this paper gives detailed description on calibration principle and the method of digital electronic stopwatch,and the uncertainty of using standard time interval generator to calibrate the digital electronic stopwatch.