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Updated: Dec 23, 2025
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In Situ Surface Temperature Measurement in a Conveyor Belt Furnace via Inline Infrared Thermography
Published on: May 30, 2020
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High-temperature infrared camouflage with efficient thermal management
Huanzheng Zhu1, Qiang Li1, Chunqi Zheng1
11State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310027 China.
Light, Science & Applications
|April 28, 2020
Summary
High-temperature infrared (IR) camouflage is achieved using a novel thermal management system. This system combines silica aerogel and a selective emitter, significantly reducing object temperature and IR signature for enhanced concealment.
Area of Science:
- Materials Science
- Optics
- Thermal Engineering
Background:
- High-temperature infrared (IR) camouflage is essential for concealing objects.
- Thermal radiation increases with temperature (T⁴), making camouflage difficult.
- Existing methods struggle with effective high-temperature thermal management.
Purpose of the Study:
- To experimentally demonstrate high-temperature IR camouflage.
- To develop an efficient thermal management system for IR concealment.
- To reduce the thermal signature of high-temperature objects.
Main Methods:
- Combined silica aerogel for thermal insulation.
- Utilized a Ge/ZnS multilayer wavelength-selective emitter.
- Engineered selective emittance for radiative cooling and IR camouflage.
Main Results:
- Reduced object surface temperature from 873 K to 410 K.
- Achieved IR camouflage with radiation temperatures of 310 K (indoor) and 248 K (outdoor).
- Demonstrated a 78% reduction in lock-on range with earthshine.
Conclusions:
- The developed system provides effective high-temperature IR camouflage.
- This approach offers significant thermal management and IR signature reduction.
- Potential applications in infrared signal processing and thermal management are highlighted.
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