Method for dynamically determining the horizontal motion and twi

Details Method for dynamically determining the horizontal motion and twi Method for dynamically determining the horizontal motion and twi

1980-04-03

1982-06-15

Buczinski, S. C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

350 691, G01B 1126

Patent

active

043347754

ABSTRACT:
A plurality of retroreflector devices (22-23) are fixedly mounted in spaced relation on a microwave tower (10) are raster scanned with a laser beam (46). The direction of the beam (46) is monitored as it impinges on each device to determine the position of each device. The twist and sway of the tower is then determined using the positional information of the devices.

REFERENCES:
patent: 3021749 (1962-02-01), Merlen
patent: 3504979 (1970-04-01), Stephany
patent: 3809477 (1974-05-01), Russell
patent: 4003626 (1977-01-01), Reinke et al.
patent: 4025193 (1977-05-01), Pond et al.
patent: 4172661 (1979-10-01), Marcus et al.
J. K. Groseclose, Civil Engineering, Nov. 1964, pp. 68-70.

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