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:
Feb. 03, 2015
Filed:
Sep. 07, 2012
Leo E. Barron, Franklin, MA (US);
John A. Czazasty, Norton, MA (US);
Leo E. Barron, Franklin, MA (US);
John A. Czazasty, Norton, MA (US);
Dynisco Instruments LLC, Franklin, MA (US);
Abstract
Pressure sensors and their methods of use are described. In one embodiment, a pressure sensor includes a pressure deflectable diaphragm end formed of a first material with a first coefficient of thermal expansion, and a relatively non-deformable component formed of a second material having a second coefficient of thermal expansion. The pressure deflectable diaphragm end and the non-deformable component form a first and a second portion of a capacitor. An intermediate component separates, or is disposed between, the pressure deflectable diaphragm end and the relatively non-deformable component. The intermediate component is formed of a material with a coefficient of thermal expansion that is less than the first coefficient of thermal expansion which may help minimize changes in span with temperature. In other embodiments, a pressure sensor includes an intermediate circuit located between a distal end of the pressure sensor and a remotely located circuit enclosure including a main circuit.