...Nathan B. Crane Pyrometers are commonly used for high temperature measurement, but their accuracy is often limited by uncertainty in the surface emissivity. Radiation heating introduces additional errors due to the extra light reflected off the measured surface. While many types of specialized...

... pyrometers reflectometers spectral methods of temperature measurement metrology high temperature bichromatic pyroreflectometry surface temperature emissivity reflectivity solar blind measurements One of the fundamental difficulties in pyrometry is the temperature error due to unknown...

... setup consists mainly of a scan-mirror that is controlled by two stepper motors, a beam splitter and two pyrometers, an IMPAC IP120 pyrometer with a 2.625 μ m narrow bandpass filter for the measurement of the absorber temperature distribution, and a HEITRONICS KT19 pyrometer...

...Aaron P. Freid; Paul K. Johnson; Manuela Musella; Reto Mu¨ller; Julie E. Steinbrenner; Robert D. Palumbo We developed a method that enables one to correct solar blind pyrometer cavity temperature measurements for the system-sensor reflection error. The method is valid for measurements made...

... do not differ by more than 5%. Beyond this, the measurements showed that the UV-B pyrometer is able to do measurements with a resolution of a few Kelvin at temperatures of about 2000 ° C . Contributed by: the Solar Energy Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS...

... at the Paul Scherrer Institute (PSI): the flash assisted multi-wavelength pyrometry (FAMP) developed at PSI and a solar-blind pyrometer developed by the IMPAC Electronic GmbH in Frankfurt, Germany, in collaboration with PSI. Performance, advantages, and disadvantages of the two pyrometers are reported...