【摘要】 对新设计的一种3mm波段辐射计的特性参数进行了测量,辐射计的特性参数包括灵敏度、测温范围以及辐射计中参考负载和定标黑体的辐射温度修正量.由于受国内3mm波段技术的限制,给3mm波段辐射计的设计和测量带来很大的困难.本文采样口面定标方法,在实验室确定了新设计的3mm波段辐射计的特性参数,以保证它的实际使用意义.更多还原

【Abstract】 The characteristic parameters,such as calibration sensitivity,dynamic range,modified quantity of radiating temperatures of radiometer’s reference load and calibration blackbody of a new 3mm band radiometer,were measured.Due to the restriction of 3mm band technology in our country,there are many difficulties for designing and measuring a 3mm band radiometer.In this study,an aperture calibration technology was adopted to measure these characteristic parameters of this 3mm band radiometer by experiments.更多还原