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:
May. 25, 2021
Filed:
Nov. 10, 2016
Sonardyne International Limited, Yateley, GB;
Adrian Bryan Parsons, Surrey, GB;
SONARDYNE INTERNATIONAL LIMITED, Hampshire, GB;
Abstract
An in-situ pressure sensor bias determination apparatus () comprises a measurement pressure sensor (), a reference pressure sensor (), an electronically controllable pressure adjustment device (), and a fluid conduit network () having an ambient access port (). The measurement pressure sensor () has a greater operating pressure range than the reference pressure sensor (). The measurement pressure sensor (), the reference pressure sensor () and the pressure adjustment device () are sealingly coupled to the fluid conduit network () so as to define a volume that is open only at the ambient access port (). An ambient isolation device () is arranged to isolate selectively the ambient access port () from the measurement pressure sensor (), the reference pressure sensor () and the pressure adjustment device (), thereby closing the open volume.