Calibration of an AEDC Low-Temperature Blackbody Standard at NIST
Abstract
Sensors and their focal planes that are responsive to long-wavelength infrared (LWIR) energy and operate in a low-pressure environment require calibration. Calibration is normally accomplished in a vacuum chamber having an optically tight, cryogenically cooled liner. A blackbody source or attenuated blackbody source is used in the chamber to provide a known level of LWIR energy to the sensor or focal plane. Prior to the test, these blackbodies must also be calibrated. In late 1989, the National Institute of Standards and Technology (NIST), began operation of their low background infrared (LBIR) calibration facility. AEDC was the second customer at the new facility and obtained a calibration of a 400 K, multiple aperture source in February 1990. The final calibration report was received from NIST in February 1991.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1992
- Accession Number
- ADA245071
Entities
People
- K. B. Jarratt
Organizations
- Arnold Engineering Development Complex