Remote probing apparatus and method

Optics: measuring and testing – Refraction testing

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356129, 73596, 250338, G01N 7146, G01N 924, G01J 100

Patent

active

040998789

ABSTRACT:
Apparatus and method employing line-of-sight wave propagation for measurement of various quantities such as velocity and refractivity structure of a transmission medium at selected locations remote from the measuring device.

REFERENCES:
patent: 3623361 (1971-11-01), Funk, Jr.
patent: 3693015 (1972-09-01), Funk, Jr.
Nishijima et al., "Moire Patterns: Their Application to Refractive Index and Refractive Index Gradient Measurements", JOSA vol. 54, No. 1, Jan. 1964, pp. 1-5.
Burton; Ralph, "A Modified Schlieren Apparatus for Large Areas of Field", JOSA, vol. 39, No. 11, p. 907, Nov. 1949.

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