Interior measurement of enclosed spaces

Details Interior measurement of enclosed spaces Interior measurement of enclosed spaces

1978-05-01

1979-12-25

Buczinski, S. C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

33338, 246 1R, G01C 300, E01B 3502

Patent

active

041803221

ABSTRACT:
An apparatus for measuring interior profiles of enclosed spaces such as railway tunnels through optical means, achieves greater speed and precision than hitherto known apparatus by using a continuous collimated band of light together with means for maintaining the light band at a constant angle of incidence with the profile to be measured and means for detecting variations of the vertical angle of the light source while the light source and an associated image analyser are moved through the enclosed space.

REFERENCES:
patent: 3168023 (1965-02-01), Harmon
patent: 3705772 (1972-12-01), Andreas
patent: 3950096 (1976-04-01), Aeschlimann et al.
patent: 4063283 (1977-12-01), Rider et al.
patent: 4113381 (1978-09-01), Epstein

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