摘要
由于光电二极管阵具有量子效率高（７０～８０％），动态范围大（１０４：１）和光谱响应优良（０．４～１．１μｍ）等特点，并具有体积小、重量轻、图像几何失真小、成本低、互换性强和寿命长等优点，把它与计算机连接使用进行图象采集处理，在天文光谱测量、卫星遥感图象传播以及光学信息处理等方面已得到广泛的应用。在射电天文领域里，把射电望远镜接收到的太阳或宇宙的无线电波信息，通过声、光调制变为光学量后用光电二极管阵和计算机作为系统终端进行存储和数据处理，可以方便地进行实时频谱分析。光电二极管阵的应用，使我们研制用于太阳射电频谱观测的仪器提高到了一个更高的水平。
Photodiode array has the characteristics of high quantum efficiency (70 - 80%),wide dynamic range (10 4:1),super spectral response(0.4 -1.1 micrometer),small volume,light weight,small imagegeometrical distortion, low cost, easy to use and long time.So the image accumulation and procession with photodiode array and computer has wide application in astronomical spectral measurement,satellite remote sensing propagation and optical information procession.In the field of radio astronomy, the radio message which received by radio telescope from the Sun or the universe,can be modulated acoustically and optically into quantity which can be processed and storaged by photodiode array and computer as system terminal.So a real-time spectral analysis can be done. The application of the photodiode array promotes our level of the instrument measurements in solar radio spectral observation.
出处
《仪表技术与传感器》
CSCD
北大核心
1997年第10期40-42,45,共4页
Instrument Technique and Sensor
