摘要
详细介绍了天文选址用CCD相机的开发研制。系统探测器选用具有累进扫描模式的ICX098AL CCD芯片,采用相关双采样信号读出电路、USB通讯接口实现数据与命令的传输。对系统工作性能进行了详细的测试:12°C条件下暗流约为52adu/sec,系统增益(system gain)为2.2e/adu,读出噪声(readout noise)为30e。最后给出了在日本冈山天体物理观测所对大气宁静度的实测结果。
The development and evaluation of a CCD camera is introduced for as-
tronomical site survery. ICX98AL CCD with progressive scan mode were used as detector,
CDS(correlate dual sampling)circuit for signal readout,USB interface for command and data
communication. Dark current: 52adu/sec at 12°C, system gain: 2.2 e/adu,readout noise:
30e. The results of seeing measurements at Okayama observatory are presented. The results
are consistent with the monitoring data taken by the seeing monitor of Okayama observatory.
出处
《天文学报》
CSCD
北大核心
2004年第2期220-228,共9页
Acta Astronomica Sinica
基金
国家"九五"攀登项目(95-预-09)
