Method and apparatus for scanning the surface of an object

Details Method and apparatus for scanning the surface of an object Method and apparatus for scanning the surface of an object

1983-07-25

1985-12-31

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

358199, 358208, H01J 516

Patent

active

045623490

ABSTRACT:
Method and apparatus for scanning an object with a probe in which scanning lines for the forward and backward motions run parallel to each other and their mutual spacing from each other remains constant. In one form, the object transportation speed Vt is set relative to the speed Va of the forward and backward motions in such a way that Vt/Va=tangent .alpha.=constant where .alpha. is of the angle between the line of reciprocating movement and a normal to the transportation direction. According to another feature, the angle may be controlled by Vt such that parallelism of the scanning lines is maintained.

REFERENCES:
patent: 2855521 (1958-10-01), Blackstone
patent: 3564266 (1968-04-01), Klotz, Jr.
patent: 4352984 (1982-10-01), Ohara
patent: 4455485 (1984-06-01), Hosaka et al.

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