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Temperature controllable modulator for space apparatus and method for preparing its modulating disk

An instrument and space technology, applied in the field of temperature-controllable modulation devices, can solve the problems of radiant energy measurement benchmark fluctuations, uneven temperature changes of the disk, no active temperature control measures, etc., and achieves high temperature control accuracy and uniform heating temperature. Effect

Inactive Publication Date: 2008-07-09
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a temperature-controllable modulating device applied in a space vacuum environment. Uniform, flawed radiant energy measurement reference fluctuations

Method used

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  • Temperature controllable modulator for space apparatus and method for preparing its modulating disk
  • Temperature controllable modulator for space apparatus and method for preparing its modulating disk
  • Temperature controllable modulator for space apparatus and method for preparing its modulating disk

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Embodiment Construction

[0018] The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing:

[0019] A temperature-controllable modulation device, comprising: a heat-insulating modulation disk 1, a motor 5 connected to a shaft sleeve 109 in the center of the heat-insulation modulation disk, a temperature-control cover 2 is placed on the heat-insulation modulation disk, and the temperature-control cover passes through the heat-insulating Pad 3 is fixed on base 4 . The heat insulation pad 3 is used to prevent the heat of the temperature control cover from being lost through the base 4, resulting in uneven heat radiation from the temperature control cover to the heat insulation modulation disc. The temperature control cover 2 should be as close as possible to the heat insulation modulation disc 1, but the normal rotation of the disc body cannot be affected.

[0020] The preparation method of the heat insulation retort dish is as follows...

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Abstract

The present invention discloses a temperature controllable modulation device for space instrument and preparation method of modulation disk. Said modulation device includes heat-insulating modulation disk and motor fixed with central position shaft sleeve of heat-insulating modulation disk. It is characterized by that the external cover of heat-insulating modulation disk has a temperature controllable temperature control cover, said temperature control cover is fixed on the base seat by means of heat-insulating pad, the exterior of temperature control cover is covered with polyamide heating film, said temperature control cover is heated by said polyamide heating film, the interior of temperature control cover is equipped with film-type platinum resistor for measuring temperature. The described modulation disk includes shaft sleeve and disk surface which is placed on external ring and has a light transmission zone, and said disk surface is formed from heat-insulating internal ring made of glass fibre reinforced plastics and metallic modulation external ring with light transmission zone.

Description

technical field [0001] The invention relates to a modulation device in a space photoelectric instrument, in particular to a temperature-controllable modulation device in a space infrared photoelectric instrument. Background technique [0002] The modulation device is an important part of the space infrared photoelectric instrument. Usually, the motor drives the modulation disc to run at a constant speed, which plays the role of spatial filtering and generates the information code of the spatial position of the target. The device is generally composed of a motor and a modulating disc. The central shaft sleeve of the modulating disc is fixed on the motor shaft, and the outer ring of the disc is provided with a corresponding light-transmitting area according to the modulation requirements. The rotation accuracy of the reticle, the flatness of the surface, and the shape and position accuracy of the light-transmitting area directly affect the detection accuracy of the instrument....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/00G01D5/26G01J5/20G05D23/00
Inventor 袁杰王模昌殷德奎戎雪虎丁琳宋晓伟
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI