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:
Jan. 03, 2017
Filed:
Apr. 01, 2014
Rosemount Aerospace, Inc., Burnsville, MN (US);
James Joseph McTighe, Burnsville, MN (US);
ROSEMOUNT AEROSPACE, INC., Burnsville, MN (US);
Abstract
A capacitive pressure sensor may be configured to transduce both a dynamic pressure and a static pressure using a single diaphragm. A capacitive pressure sensor may comprise a dynamic excitation signal module in parallel with a static excitation signal module, a summing amplifier module in connection with both the dynamic excitation module and the static excitation module, a dynamic charge amplifier stage in a parallel with a static charge amplifier stage, and a capacitive sensor connected to an output of the summing amplifier module, as well as an input of the dynamic charge amplifier stage, and an input of the static charge amplifier stage. Further, a dynamic excitation signal may be provided by the dynamic excitation signal module as a constant DC voltage signal, and a static excitation signal may be provided by the static excitation signal module as an AC voltage signal.