| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot displacement measuring apparatus and a hot displacement measuring method capable of simply and accurately measuring the amount of hot displacement in a high-temperature range. <P>SOLUTION: The hot displacement measuring apparatus includes: a measuring chamber 1 provided with a sample 10; heating means for heating the sample 10; temperature measuring means for measuring a temperature in a measuring section of the sample 10; a projection lens 22 for enlarging and projecting the measuring section of the sample 10; and a pair of imaging means 23 and 24 for imaging each of both ends 10a and 10b in the image of the measuring section of the sample 10 which has been enlarged by the projection lens 22. <P>COPYRIGHT: (C)2012,JPO&INPIT |
