Proposed iMera Special Facility PTB Primary Temperature Radiators PriTeRa PTB operates a series of blackbody radiators in the temperature range from -173 °C up to 3000 °C as standard sources • for temperature radiation from -173 °C up to 3000 °C traceable either to the ITS-90 or to thermodynamic temperatures • for spectral irradiance from 200 nm up to 2500 nm and spectral radiance from 220 nm up to 15 µm • for the investigation and characterisation of metal(carbide) carbon eutectics Low and Medium Temperature Facility covering the temperature range from -60 °C up to 962 °C. Low Background Facility covering the temperature range from -173 °C up to 200 °C under vacuum. Vacuum detector chamber LN2 cooled beam line Ga blackbody Opto-mechanical unit LN 2 blackbody as radiometric zero Source chamber Source under calibration IR reference blackbody (-173 °C up to In blackbody Vacuum IR standard radiation thermometer VIRST Detetor under test device to be calibrated in terms of T 90 600 mm SPRT SPRT SPRT SPRT ammonia heatpipe bb -60 °C to +50 °C ε = 0.9999 water heatpipe bb 50 °C to 270 °C ε = 0.9998 caesium heatpipe bb 250 °C to 650 °C ε = 0.9996 sodium heatpipe bb 500 °C to 960 °C ε = 0.9996 x y 3000 mm
Transcript
Proposed iMera Special Facility
PTB Primary Temperature Radiators PriTeRa
PTB operates a series of blackbody radiators in the temperature range from -173 °C up to 3000 °C as standard sources
• for temperature radiation from -173 °C up to 3000 °C traceable either to the ITS-90 or to thermodynamic temperatures
• for spectral irradiance from 200 nm up to 2500 nm and spectral radiance from 220 nm up to 15 µm
• for the investigation and characterisation of metal(carbide) carbon eutectics
Low and Medium Temperature Facility covering the temperature range from -60 °C up to 962 °C.
r
Low Background Facility covering the temperature range from -173 °C up to 200 °C under vacuum.
Vacuum detector chamber
LN2 cooled beam line Ga blackbody
Opto-mechanical unit
LN2 blackbody as radiometric zero
Source chamber
Source under calibration
IR reference blackbody (-173 °C up to 200 °C)
In blackbody
Vacuum IR standard radiation thermometer VIRST
Detetor under test
device to be calibrated in terms of T90
600 mm
SPRT SPRT SPRT SPRT
ammonia heatpipe bb -60 °C to +50 °C
ε = 0.9999
water heatpipe bb 50 °C to 270 °C
ε = 0.9998
caesium heatpipe bb 250 °C to 650 °C
ε = 0.9996
sodium heatpipe bb 500 °C to 960 °C
ε = 0.9996
x
y
3000 mm
High-temperature Facility covering the temperature range from 1000 °C up to 3000 °C
Spectral Irradiance Facility. (left) and High-temperature Blackbodies (right). The new high-temperature blackbody BB3500MP (inset) can be operated up to 3200 °C.
Technical details of the PriTeRa facilityblackbody temperature
