Method for measuring temperature pattern and its apparatus

Abstract

Abstract PURPOSE:To make possible a highly accurate and high resolving power measurement without being affected by a surrounding atmosphere by performing a two-color temperature operation per each area of a photographed picture through a filter consisted of a combination of two kinds of optical filter segments which can be allowed to transmit different wave components. CONSTITUTION:A filter 2 is made by combining optical filter segments, 21 and 22, which can transmit two kinds of wave length components respectively so that both may be adjacent to each other. A picture signal in the photograph apparatus 1 in accordance with an optical wave length from a measuring object W through the filter 2 is subjected to a two-color temperature operation by a arithmetic unit scanning the picture in an area formed by a set of the segment together with being stored in a memory 5 with a video signal treatment apparatus 4. As a result of the operation corresponding to each area of them, a temperature pattern having a combination of two-color thermometer and picture processing is determined, whereby it is possible to measure a temperature pattern having a high accuracy and a high resolving power without being affected by a surrounding atmosphere for an electric seam welded steel pipe or the like working in the humid or dusty atmosphere.

Inventors

• 👤 Masao Tatsuwaki
• 👤 Arata Nemoto
• 👤 Seiichi Okuhara

Bibliographic Details