- Author
- Crist, R. A. | Marshall, R. D. | Laursen, H. I.
- Title
- Electro-Optical Deflection Measuring Device. Final Report. 1972-1973.
- Coporate
- National Bureau of Standards, Washington, DC
- Report
-
NBS TN 873
December 1975 - Distribution
- Available from National Technical Information Service
- Keywords
- buildings; lateral pressure; deflection; electrooptics; tracking telescopes; optical measuring instruments; wind pressure; solar heating; data transmission | elevator shafts
- Identifiers
- tall buildings
- Abstract
- The development and testing of an electro-optical device for the direct measurement of lateral deflections of tall structures are described. The device uses a tracking telescope mounted on a fixed reference and a light source attached to the structure of the level for which lateral deflections are to be measured. Operating characteristics of the system are based on the results of tests carried out over a period of several months in one of the elevator shafts of a 12-story building.