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:
Jul. 18, 2023
Filed:
Jun. 21, 2021
Sensirion Ag, Stäfa, CH;
Mark Hornung, Stäfa, CH;
Eric Monnin, Stäfa, CH;
Sensirion AG, Stäfa, CH;
Abstract
A sensor device for determining at least one heat transfer parameter of a gas comprises a sensor unit () comprising at least one heater element and at least one temperature sensor. A first (inner) housing () receives the sensor unit. The first housing comprises a first membrane () allowing a diffusive gas exchange between the exterior and the interior of the first housing. The first housing is received in a second (outer) housing (). The second housing comprises a second membrane () allowing a diffusive gas exchange between the exterior of the second housing and the exterior of the first housing. Thereby temperature gradients inside the first housing are reduced. The second housing can be made of metal and can be disposed on a support plate (), taking the form of a cap. An auxiliary sensor () can be arranged in the space between the first and second housings.