Thermography device

Abstract

Abstract PURPOSE:To make an optional emissivity correction in an optional area in a temperature distribution image by returning and storing temperature data corrected by an emissivity correcting means on the basis of previously specified emissivity and ambient temperature in a storage means. CONSTITUTION:An address setting circuit 25 lists up all picture elements in an area encircled with a frame A in an image Z on the basis of frame position data (x1, y1), (x2, y1), (x2, y2), and (x1, y2) sent from a frame setting circuit 24, and the number N of the picture elements is sent to an end detecting circuit 30 and held therein. Then, the address setting circuit 25 generates address signals for reading temperature data on the N listed-up picture elements out of a picture memory in proper order and sends them to the picture memory 8. Temperature data on the 1st picture element D1 read out of the memory 8 is sent to and stored in a register 26. This temperature data is raw data before emissivity correction and sent to an emissivity correcting circuit 27 to make the emissivity correction on the basis of emissivity and ambient temperature Ta.

Inventors

• 👤 Junjiro Imaizumi
• 👤 今泉　醇二郎

Bibliographic Details