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:
Aug. 16, 2016
Filed:
May. 16, 2012
Balthasar Fischer, Vienna, AT;
Friedrich Reining, Vienna, AT;
Ernst Wintner, Oberweiden, AT;
XARION LASER ACOUSTICS GMBH, Vienna, AT;
Abstract
A device comprising measurement () and reference () interferometers is disclosed. Each interferometer is configured to receive light from the same light source () and to emit light to respective detectors () and has a respective operating point. The measurement interferometer () is configured to respond to variations in a physical parameter by varying the intensity of light emitted, whereas the reference interferometer () is configured to be unresponsive to variations in the physical parameter. The device further comprises a signal processor for generating a differential output signal depending on respective output signals generated by the detectors ().