Constant-temperature control device for CCDs (charge coupled devices) of spaceflight optical remote sensor

An optical remote sensor and constant temperature control technology, applied in temperature control, non-electric variable control, control/regulation system, etc., can solve problems such as excessive temperature fluctuations and changes in heating power, to ensure temperature stability, suppress temperature fluctuations, The effect of ensuring temperature stability

Active Publication Date: 2014-06-18
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the deficiencies in the prior art, and to propose a constant temperature control device for the CCD device of an aerospace optical remote sensing device, which solves t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Constant-temperature control device for CCDs (charge coupled devices) of spaceflight optical remote sensor
  • Constant-temperature control device for CCDs (charge coupled devices) of spaceflight optical remote sensor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0009] The invention uses miniature and high-efficiency heat transfer elements to quickly conduct the heat generated by the CCD device to the heat sink, and controls the camera management controller to turn on and off the film electric heater with the help of the camera's remote control command to avoid the heat caused by the delay in temperature control. The accumulation and heat transfer path adopts high specific heat capacity materials, phase change energy storage materials to suppress temperature fluctuations, and some parts of the heat transfer path set up conventional temperature control heating loops to further enhance the temperature stability of the heat transfer path. By ensuring the temperature stability of each link of the heat transfer path, the high stability temperature control of the CCD device is achieved.

[0010] The working mode of the film electric heater in the present invention is as follows figure 1 Shown. When the camera is on standby, the film electric h...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a constant-temperature control device for CCDs (charge coupled devices) of a spaceflight optical remote sensor. The constant-temperature control device comprises a micro heat pipe, the CCDs, a thin-film electric heater, a switching plate, a conventional heat pipe, a heat dissipation plate and a control circuit, wherein when the CCDs are switched off, the control circuit controls the thin-film electric heater to heat the micro heat pipe; the micro heat pipe simultaneously transmits generated heat to the CCDs and the heat dissipation plate; the heat dissipation plate dissipates redundant heat, so that the temperature of the CCDs can be kept constant; at the moment when the CCDs are switched on, the control circuit controls the thin-film electric heater to be powered off instantly, and redundant heat generated by the CCDs is dissipated by the heat dissipation plate, so that the temperature of the CCDs can be kept constant. According to the constant-temperature control device for the CCDs, power compensation is performed close to the CCDs, so that temperature fluctuation caused by temperature control delay and CCD power change can be avoided; therefore the temperature stability of the CCDs can be improved.

Description

technical field [0001] The invention belongs to the technical field of thermal control of aerospace optical remote sensors, and relates to a constant temperature control device for CCD devices of aerospace optical remote sensors. Background technique [0002] CCD device (Charge Coupled Device), as a key component of aerospace optical remote sensing camera, plays a vital role in whether the camera can transmit high-quality images. CCD devices have very strict requirements on temperature stability. Excessive temperature fluctuations will increase dark current and thermal noise, thereby reducing the ability of photoelectric conversion, resulting in a decrease in signal-to-noise ratio and affecting image quality. In addition, since the CCD device is directly installed on the support structure, the temperature rise of the CCD device will cause the temperature of the support structure in contact with it to rise. When the number of CCD devices is large and the line array is long, t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G05D23/20
Inventor 鲁盼赵振明宋欣阳高娟
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap