Laser grade, elevation, curve surveying system

Details Laser grade, elevation, curve surveying system Laser grade, elevation, curve surveying system

1980-04-04

1982-07-06

Punter, William H.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356138, 356354, 356397, G01B 902, G01B 1102, G01B 1126

Patent

active

043380310

ABSTRACT:
A method for surveying is disclosed which functions to define all curves, grades and super elevations to a parabolic shape by impinging two laser beams, each of which is provided with a grid type means so as to create a diffracted fan of beams emitted from each laser. The intersections of these beams are utilized to form the parabolic shapes.

REFERENCES:
patent: 3269254 (1966-08-01), Cooper et al.
patent: 3664746 (1972-05-01), McKnight
patent: 3801205 (1974-04-01), Eggenschwyler
patent: 3900262 (1975-08-01), Baxter
patent: 4103547 (1978-08-01), Vrabel
patent: 4176456 (1979-12-01), Beckmann

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