Temperature measuring method using thermal expansion and an appa

Details Temperature measuring method using thermal expansion and an appa Temperature measuring method using thermal expansion and an appa

1994-12-27

1997-07-08

Bennett, G. Bradley

Thermal measuring and testing

Temperature measurement

Nonelectrical, nonmagnetic, or nonmechanical temperature...

374120, G01J 538

Patent

active

056453515

ABSTRACT:
A temperature measuring method and apparatus for measuring temperature of at least one measuring point of a sample. At least one measuring point on a surface of a sample at least with a first light. A displacement of the at least one measuring point on the surface of the sample occurs from thermal expansion of the sample in response to the first light impinging thereon and a signal indicative of the displacement is produced. The temperature of the at least one measuring point of the sample is determined from the signal.

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"Laser Generation of Convergent Acoustic Waves and Applications to Materials Evaluation", P. Cielo et al, Industrial Materials Research Institute, Canada, IEEE 1986, pp. 515-526.

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