摘要
Purpose Photon source has developed to the fourth generation.The requirements for beam stability and power supply output current stability have been greatly improved.In this paper,a precision acquisition system is designed for improving the stability for power supply output current.Method The acquisition system consists of two parts,the analog to digital converter(ADC)system and the temperature control system.The composition and software simulation analysis are given in this paper.Results A prototype is made and tested.The test results showed that the acquisition system has an effective resolution of 15.5 bits,signal-to-noise ratio(SNR)of 98 dB,and integral nonlinearity(INL)of 86 ppm.The internal temperature stable range is±0.06℃.Conclusions The acquisition system can fully meet the requirements of the developed photon source.
