The Test Repost on the Principal Performance of Some Parts of An Integrated Photometer

The test results of ths principal penrormancc of some parts of an integrated photometer are introduced in this paper.The spectral response curves of the photometer head are given,When the diaphragm is 32",its plateau range is 23".The zero drifts of two DC amplifiers arc less than 0.5 mv/hour and their linearities are better than 0.003.The voltaec stability of the high voltage power supply equals or is less than 0.0002.