Optics: measuring and testing – Material strain analysis
Patent
1988-06-24
1991-01-08
Rosenberger, Richard A.
Optics: measuring and testing
Material strain analysis
73775, 73800, 356373, 372 20, 372 92, G01B 1116
Patent
active
049830350
ABSTRACT:
In the present apparatus, a system converting stress in a structural member into strain by positioning a body of lasing material (creating a coherent beam) on a structural member. The body has parallel end faces. One is opposite a mirror attached to the structural member. The member strain varies laser cavity spacing and modulates the laser beam as a function of strain.
REFERENCES:
patent: 4275599 (1981-06-01), Kohlenberger et al.
patent: 4409842 (1983-10-01), Scott et al.
patent: 4452533 (1984-06-01), Miles et al.
patent: 4475812 (1984-10-01), Buczek et al.
patent: 4655597 (1987-04-01), Tamamoto et al.
Rabson Thomas A.
Reifel Michael D.
Wright John V.
Reiton Ltd.
Rosenberger Richard A.
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