Portable electronic distance and vertical angle instrument

Details Portable electronic distance and vertical angle instrument Portable electronic distance and vertical angle instrument

1997-03-19

2000-03-07

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

Apex of angle at observing or detecting station

180169, 356 301, 356 401, G01C 300, G01C 308, G01B 1126, B60T 716

Patent

active

060347643

ABSTRACT:
A portable instrument combines an electronic distance or range finder with an electronic difference finder for vertical (i.e., elevational) angle mensuration in order to at least to determine or compute, from a remote distance away, a vertical clearance between a bridge overpass and an under-passing highway. The instrument is at least sighted manually on one of a bridge overpass or the under-passing highway, but instantaneously gives computed values once activated.

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