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:
Jun. 13, 2017
Filed:
Aug. 29, 2013
Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, Delft, NL;
Abstract
A pressure sensing assembly (), comprising: an elongate, axially extending tube (), having a flexible tube wall () that encloses an inner pressure chamber (); and at least one sensor unit (), including: two tube wall fixation devices (), connected to the tube wall () at respective axially spaced apart positions, and configured to fix respective diameters (D, d) of the tube wall at said positions; and a first strain sensing element (), connected to the tube wall () at a first position axially in between said two tube wall devices (), and configured to provide a first signal indicative of an axial elongation of the tube wall resulting from a change in axial curvature of the tube wall when a pressure differential between the inner pressure chamber () and an outside environment () of the tube is applied across the tube wall at said first position.