The Art of Calibration
NexTherm Sensing has unique experimental means in terms of calibration
High Temperature Cavity Blackbody
The black body constitutes a reference source up to 1350°C, allowing an ultra-precise calibration in radiative mode (thermal radiation).
The RCN model provided by HGH has high spatial and angular uniformity, as well as the highest emissivity on the market (ideal blackbody correction offering an apparent emissivity of 0.99+).
This type of means allows calibration in radiative mode on the full scale which can reach 100kW/m² continuously, and this with a source with two references (MWIR and LWIR).
More information on https://hgh-infrared.com/fr/range-rcn/
Calibration à 100kW/m²
Etalonnage d'un capteur IHF
Jusqu'à 1350°C
Calibration à 100kW/m²
For the most demanding flows (>100kW/m²), NexTherm Sensing has a unique calibration bench, based on a CO2 Laser with a maximum power of 50 Watt, generating an infrared beam at 10.6 micrometers.
Its beam diameter is adjustable, allowing uniform heating to be applied thanks to the use of a beamshaper, up to 5MW/m².
It is also possible to carry out dynamic characterizations by inserting a rotary chopper on the optical path of the laser, with a frequency that can reach up to 4kHz. this means makes it possible to determine the response times of the sensors but also to estimate the reproducibility of repeated measurements.
Banc laser
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Vue schématique
Banc laser
Continuous Laser Bench
vacuum chamber
We have specific means to carry out more precise vacuum calibrations (neutralization of parasitic natural convection), such as the CVF vacuum chamber, fitted with an anti-reflective treated germanium porthole, with high transmittance at 10.6 micrometers.
