04270050 is referenced by 36 patents and cites 3 patents.

A fiber optical measuring device for measuring physical magnitudes comprises a transducer having a body constituting an optical modulator. The optical properties of the modulator are dependent on the mechanical forces acting on the modulator. The optical property utilized is the pressure dependency of at least one light-absorption edge of the absorption spectrum of the modulator material. Optical fibers are used for leading light into the modulator and for leading out light that has passed through the modulator.

Title
Apparatus for measuring pressure by absorption spectrum change
Application Number
6/73191
Publication Number
4270050
Application Date
September 7, 1979
Publication Date
May 26, 1981
Inventor
Torgny Brogardh
Vesteras
SE
Agent
Watson Cole Grindle & Watson
Assignee
ASEA Aktiebolag
SE
IPC
G01D 5/34
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