The Gemini R comprises a blackbody with which radiation pyrometers (infrared thermometers) can be calibrated.
The temperature of the cavity can be set to ±0.1°C over the temperature range 50°C to 700 °C.
The temperature of the furnace is set on a controller, whilst an independent indicator, whose sensor fits
into the cavity, indicates the actual radiance temperature. The sensor can be removed for external
calibration or the complete system can be calibrated.
Traceability may be established with a UKAS certificate for the in-built indicator and supplied probe (935-14-94).
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