Visualization of vibrations, deformations or level lines of a th

Details Visualization of vibrations, deformations or level lines of a th Visualization of vibrations, deformations or level lines of a th

1974-07-12

1976-04-20

Britton, Howard W.

Telegraphy

Systems

Simplex-reversing periodic

178DIG36, H04N 718

Patent

active

039521508

ABSTRACT:
The present invention relates to a method of and apparatus for enabling the visualization of isometric physical condition maps of a three-dimensional test object, the physical condition being for example the amplitude of vibration of the test object or the contour of the object. The latter is studied by the striation method whereby flat parallel light beams on light on the object forming a system of striations thereon; there is superimposed on the image in a given direction of the illuminated object a corresponding image of a typical comparison object, the resultant superimposed image being a coded representation of the physical condition of the test object. A television camera is used to analyze the successive images of the system of striations formed on the surface of the object. The modulation signal is separated from the synchronizing signals, filtered and demodulated so as to reproduce in real time on a viewing device or control receiver an isometric physical condition map of the object with free from the structure.

REFERENCES:
patent: 3814521 (1974-06-01), Free

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