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:
Jul. 14, 2026
Filed:
Jul. 20, 2016
Micro Motion, Inc., Boulder, CO (US);
Timothy J. Cunningham, Boulder, CO (US);
Miles Keeney-Ritchie, Boulder, CO (US);
Micro Motion, Inc., Boulder, CO (US);
Abstract
A method of determining optimal resistance and compensating for temperature variations in determining a test tone is presented. The optimal resistance in a drive circuit amplifier and drive coil and using the optimal resistance to improve the accuracy of a test tone used in the calibration of a flow meter is presented. The optimal resistance is calculated using a linear extrapolation of the resistance change of the circuit with respect to temperature. The optimal resistance is then used to calculate the proper maximum sensor current (MSC) value using an equation derived from Ohm's law, and from the MSC a test tone level is calculated.