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:
Mar. 26, 2019
Filed:
Apr. 22, 2016
Infineon Technologies Ag, Neubiberg, DE;
Horst Theuss, Wenzenbach, DE;
Gottfried Beer, Nittendorf, DE;
Sebastian Beer, Regensburg, DE;
Alfons Dehe, Reutlingen, DE;
Franz Jost, Stuttgart, DE;
Stefan Kolb, Unterschleissheim, DE;
Guenther Ruhl, Regensburg, DE;
Rainer Markus Schaller, Saal a.d. Donau, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A photo-acoustic gas sensor includes a light emitter unit having a light emitter configured to emit a beam of light pulses with a predetermined repetition frequency and a wavelength corresponding to an absorption band of a gas to be sensed, and a detector unit having a microphone. The light emitter unit is arranged so that the beam of light pulses traverses an area configured to accommodate the gas. The detector unit is arranged so that the microphone can receive a signal oscillating with the repetition frequency.