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:
Dec. 05, 1995
Filed:
Aug. 31, 1993
Applicant:
Inventor:
Robert B Wiggins, Salt Lake City, UT (US);
Assignee:
Quartzdyne, Inc., Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
73702 ; 73708 ; 73152 ; 73154 ;
Abstract
A pressure transducer assembly for measuring fluid pressure. The transducer assembly includes a thickness-shear mode resonator pressure sensor and a thickness-shear mode resonator temperature sensor for temperature compensation of the pressure sensor. Both sensors are exposed to the pressurized fluid, and possess similar thermal time constants. The temperature sensor possesses a pressure sensitivity less than that of the pressure sensor, and a temperature sensitivity greater than that of the pressure sensor. The pressure and temperature sensors may be of similar size and configuration, and may be fabricated from the same material, such as quartz.