Optics: measuring and testing – Refraction testing – Refractive rod engages specimen
Patent
1988-01-22
1990-02-27
Evans, F. L.
Optics: measuring and testing
Refraction testing
Refractive rod engages specimen
250227, 73590, G01N 2141, G01N 2184
Patent
active
049040804
ABSTRACT:
Reference materials of differing indices of refraction or acoustic impedances are incorporated into liquid compositions to monitor the solidification process of these liquid compositions. Light or acoustic waves are used to indirectly measure the difference between the index of refraction or acoustic impedance of the solidifying composition and the reference material. The method provides an accurate in situ indication of the completion of the solidification process as well as a monitor of the degree of solidifications during the solidification process.
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Evans F. L.
The Board of Regents of the University of Washington
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