Infrared Sensor (IR) Cooling
Infrared (IR) sensors detect infrared radiation emitted or reflected by an object and convert that information into an electrical signal or thermal image. They are used in thermal imaging, security and surveillance, industrial inspection, temperature sensing, machine vision and other optical sensing systems.
Because detector performance is highly temperature sensitive, many infrared sensing systems require precise temperature stabilization or below-ambient cooling to reduce thermal noise and maintain image quality.
Why Infrared Sensors Require Cooling
Thermal noise generated by the detector and surrounding electronics can interfere with weak infrared signals. As detector temperature increases or fluctuates, this noise can reduce sensitivity, image resolution and measurement repeatability.
Thermoelectric coolers (TECs) provide localized, solid-state cooling directly at the sensor, helping:
- Reduce thermal noise
- Improve image resolution and sensitivity
- Maintain stable detector temperature
- Support detection across a broader infrared spectrum
- Provide compact, vibration-free cooling
Thermoelectric Coolers for IR Sensors
Tark Thermal Solutions provides thermoelectric coolers for infrared sensors ranging from miniature optical packages to systems operating in elevated ambient temperatures.
OptoTEC™ OTX/HTX Series
Miniature thermoelectric coolers designed for high-performance optoelectronic applications. OTX models support operating temperatures up to 120°C, while HTX models are designed for environments up to 150°C.
Explore OptoTEC™ OTX/HTX Series thermoelectric coolers
HiTemp ETX Series
For infrared sensing systems exposed to higher thermal loads or elevated ambient temperatures, the HiTemp ETX Series provides a maximum temperature differential (ΔT) of up to 83°C and is designed to withstand operating environments up to 150°C.
Explore HiTemp ETX Series thermoelectric coolers
Need help selecting a thermoelectric cooler for your infrared sensor? Tark Thermal Solutions can evaluate heat load, target detector temperature, ambient conditions, available footprint and heat-rejection requirements to identify the appropriate thermal solution.
Need Help Selecting a Cooling System?
Tark Thermal Solutions engineers can help determine the cooling capacity, temperature range, coolant flow and system configuration required for your laboratory application.
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