An effective method for determining precisely the error or the emissivity of a cavity is given.
提供了一种能够精确确定腔体发射率误差的有效方法。
2
The measurement of the total emissivity of a solid surface in the black cavity which is immersed in liquid nitrogen and under high vacuum (10-6 torr) by steady caloric method is described.
The calibrated data are individually modified by the cavity integrated emissivity and the effective emissivity at the bottom of the blackbody cavity for the portable WFHX-63 infrared thermometer.