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根据与法国国家气象局签定的合同,欧洲推进协会(SEP)研制了 VIZIR 图象显示装置。这种图象显示装置与卫星资料接收机配用,能提供轨道观测的准确图象。图象的特点是:再现性好,分辨率高。VIZIR 图象显示装置所采用的先进技术有:利用激光来按卫星资料输入速率进行光电调制;用以安装照相胶片的滚筒由活动磁性支座支持;所有光电部件(激光器、调制器、反射镜、透镜)安装在对振动不敏感的隔振板上;利用伺服反馈回路与调制器相联,用以补偿调制器的非线性,并限制激光的功率漂移;利用可变的斜率放大器对照相胶片乳胶层响应的非线性特性进行补偿等。VIZIR 图象显示装置使用时适应性好,除
According to the contract signed with the French National Weather Service, the European Promotion Association (SEP) has developed a VIZIR image display device. This image display device is used with satellite data receivers to provide accurate images of orbital observations. The image is characterized by: good reproducibility, high resolution. VIZIR image display devices using the advanced technology are: the use of laser to satellite data input rate of optical modulation; used to install the photographic film roller supported by a movable magnetic support; all the optoelectronic components (lasers, modulators, mirrors, Lens) is installed on vibration isolation plate which is insensitive to vibration; the servo feedback loop is used to connect with the modulator to compensate the nonlinearity of the modulator and limit the laser power drift; the variable slope amplifier is used to control the photographic film emulsion Layer response to compensate for nonlinear characteristics. VIZIR image display device adaptability, except