Vacuum blackbodies
1 / 2Pages

Vacuum blackbodies Vacuum blackbodies FOR CRYOGENIC OR AMBIENT IRRADIATIVE ENVIRONMENT INTRODUCTION Vacuum blackbodies combine performance of traditional infrared reference sources with specific features in order to operate in vacuum chamber, at cryogenic or ambient temperatures. They can emit over an ultra extended temperature range, set and controlled with high accuracy. They consist in a vacuum compatible emissive head connected to a controller located out of the chamber. High stability of regulation is ensured by the optimized control of the losses through radiation and conduction. High emissivity up to 0.999 is obtained thanks to a vacuum compatible coating on a specific surface structure of the blackbody. Temperature of the emissive surface is measured in real time via high precision calibrated Pt sensors. > RCNV with 0.999 emissivity Various principles of thermal exchanges are available to suit different applications such as characterisation and radiometric calibration of space borne imagers, non-uniformity correction of infrared sensors, etc... > test of a spatial instrument with DCN1000 V BENEFITS • Extended area up to 500x500mm2 • Temperature range from +100K to +425K • Real time display of temperature data in C°, K and F • Integration in clean room conditions • Use of vacuum compatible coatings and materials • Fast response time and high stability • High thermal uniformity and emissivity • Guaranteed radiometric specifications • Intuitive interface • Remote control via Ethernet interface, R5232, iEEE488 • Radiometric calibration over multiple bandwidths • Built-in test equipment (BITE) • Vacuum chamber electrical feedthrough included • Exclusive compensation of chamber reflected radiation • Infratest LT control software OPTIONS • Drivers LabVIEW for all communication in

Vacuum blackbodies IRRADIATIVE ENVIRONMENT Vacuum blackbodies TECHNICAL DATA > Characterization of space borne imager > New generation Blackbody Controller TEC and circulating fluid cooling Heater, cooling through cryogenic cold plate (included) Fluid circulation around cavity Emissive surface Absolute temperature range Temperature measurement accuracy Thermal uniformity at irradiative environment temperature ±5 °C Heating time 0.001 °C (surface temperature and set point) Display resolution Operating temperature (head) <30 minutes for any ΔT 0.001 °C (surface temperature) 0.01 °C (set...