The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 1986
Filed:
Mar. 07, 1984
Applicant:
Inventors:
Gerhard Martens, Ellerau, DE;
Manfred R Liehr, Hamburg, DE;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
2502 / ; 73705 ; 250227 ; 350 9629 ;
Abstract
A pressure sensor comprises an optical system which is coupled to a diaphragm an which couples light emitted by a transmitting light guide into two receiving light guides depending on the deflection of the diaphragm. In order to enable the pressure values thus detected to be measured by means of a simple circuit, the transmitting light guide and the receiving light guides are arranged parallel to the diaphragm and the optical system is constructed as a focusing system, preferably a spherical lens arranged to be movable by the diaphragm 11 in a direction perpendicular to this diaphragm.