The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 1989
Filed:
Feb. 25, 1988
Raymond E Taylor, West Lafayette, IN (US);
Hans Groot, West Lafayette, IN (US);
Weldon E Vaughn, Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
An apparatus for use in determining a thermal characteristic of a specimen includes first and second chucks for engaging two regions of the specimen, a first chuck mounting mechanism for supporting the first chuck in relatively fixed orientation, and a second chuck mounting mechanism. The second chuck mounting mechanism supports the second chuck in relatively movable orientation relative to the first chuck to permit variations in the spacing between the first and second chucks occasioned by thermal variations in the specimen. A base supports the first and second chuck mounting mechanisms. A laser is provided for heating a third region of the specimen lying between the two regions to a different temperature than the two regions. An infrared detector is provided for detecting radiation emitted from the third region. The base, the first chuck mounting mechanism, the first chuck, and the second chuck together comprise a fluid circuit for circulating a fluid through the base, the first chuck mounting mechanism, the first chuck and the second chuck.