By means of measuring amplitude response we can measure zero point, conversion factor and their stabilities. Integral non-linearity and peak position drift caused by changing of counting rate can also be measured. 通过测量幅度响应可以测定零点、变换系数及其稳定性,还可以测定积分非线性(INL)和计数率变化时引起的峰位漂移。