US 12,422,309 B2
Accurate temperature measurement structure of wide temperature range and method thereof
Shiang-Feng Tang, Taoyuan (TW); Shun-Lung Yen, Taoyuan (TW); Kuo-Jen Chang, Taoyuan (TW); and Hsin-Chang Chen, Taoyuan (TW)
Assigned to NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY, Taoyuan (TW)
Filed by NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY, Taoyuan (TW)
Filed on Jun. 13, 2023, as Appl. No. 18/333,566.
Prior Publication US 2024/0418578 A1, Dec. 19, 2024
Int. Cl. G01K 11/00 (2006.01); G01K 1/022 (2021.01); G01K 15/00 (2006.01)
CPC G01K 11/00 (2013.01) [G01K 1/022 (2013.01); G01K 15/005 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An accurate temperature measurement structure of a wide temperature range, comprising:
a lens set, having a first connecting member;
an optical base, having a first coupling member, a second connecting member and a neutral density slot, the neutral density slot located on a plane perpendicular to an optical axis, wherein the lens set is connected to the first coupling member of the optical base by the first connecting member, and the lens set is fixed to the optical base by a first screw;
a mask shutter assembly, having a second coupling member, wherein the optical base is connected to the second coupling member of the mask shutter assembly by the second connecting member, and the mask shutter assembly is fixed with the optical base by a second screw; and
a temperature sensing unit, disposed in the optical base and for sensing a target object temperature to obtain a measured temperature value, the temperature sensing unit performing a temperature normalization correction when the accurate temperature measurement structure of the wide temperature range is in a power-on stage to obtain a signal strength value, setting a plurality of signal conditions according to the signal strength value to obtain a dynamic linearity strength value, and determining an extreme value region according to the dynamic linearity strength value, wherein a neutral density filter is added to the neutral density slot when it is determined that the dynamic linearity strength value is greater than the extreme value region.