论文标题
近红外成像仪,光谱仪和偏光仪的电子设计和开发
Electronics design and development of Near-Infrared Imager, Spectrometer and Polarimeter
论文作者
论文摘要
NISP是一种多方面的近红外仪器,用于即将推出的印度拉贾斯坦邦阿布山的Miro Gurushikhar 250万IR望远镜,正在艾哈迈达巴德(PRL)开发。 NISP具有宽(FOV = 10'x 10')场成像,中等(r = 3000)光谱和成像偏振器工作模式。它的设计基于0.8至2.5微米敏感的2048 x 2048 HGCDTE(MCT)阵列检测器。光学,机械和电子子系统正在PRL内部设计和开发。夏威夷2RG(H2RG)检测器将与控制LN2内部填充的低温冷却露水一起安装。 H2RG和ASIC的基于FPGA的控制器将在室温下安装在Dewar之外。智能步进电动机将促进过滤轮和光学组件的运动,以实现不同的操作模式。检测器和ASIC温度是使用湖岸温度控制器(TC)336控制的伺服温度。此外,TC将监视几种低温温度,以检查仪器的健康检查。望远镜上的检测器,运动和温度控制器将连接到USB集线器和光纤式反接收器。远程主机的计算机接口到远程端式转换器将配备内部开发的GUI软件,以控制NISP的所有功能。 NISP电子产品的设计和开发方面将在本次会议上介绍。
NISP, a multifaceted near-infrared instrument for the upcoming 2.5m IR telescope at MIRO Gurushikhar, Mount Abu, Rajasthan, India is being developed at PRL, Ahmedabad. NISP will have wide (FOV = 10' x 10') field imaging, moderate (R=3000) spectroscopy and imaging polarimetry operating modes. It is designed based on 0.8 to 2.5 micron sensitive, 2048 X 2048 HgCdTe (MCT) array detector from Teledyne. Optical, Mechanical and Electronics subsystems are being designed and developed in-house at PRL. HAWAII-2RG (H2RG) detector will be mounted along with controlling SIDECAR ASIC inside LN2 filled cryogenic cooled Dewar. FPGA based controller for H2RG and ASIC will be mounted outside the Dewar at room temperature. Smart stepper motors will facilitate motion of filter wheels and optical components to realize different operating modes. Detector and ASIC temperatures are servo controlled using Lakeshore's Temperature Controller (TC) 336. Also, several cryogenic temperatures will be monitored by TC for health checking of the instrument. Detector, Motion and Temperature controllers onboard telescope will be interfaced to USB Hub and fiber-optic trans-receiver. Remote Host computer interface to remote end trans-receiver will be equipped with in-house developed GUI software to control all functionalities of NISP. Design and development aspects of NISP Electronics will be presented in this conference.