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:
Jun. 11, 2019
Filed:
Feb. 24, 2017
The Boeing Company, Chicago, IL (US);
Amir Liaghati, Huntsville, AL (US);
Jordan Miller, Huntsville, AL (US);
David Rushing, Madison, AL (US);
John Blumer, Huntsville, AL (US);
The Boeing Company, Chicago, IL (US);
Abstract
A two-wire resistance temperature detector (RTD) includes an RTD sensor having a sensor resistance that changes in correspondence with changes in the temperature of the RTD sensor. The two-wire RTD additionally includes a pair of leads electrically coupling the RTD sensor to a control unit having a pulse generator for generating a first current pulse and a second current pulse. The two-wire RTD also includes a switch electrically coupled between the pair of leads and operable in an open state when subjected to the first current pulse and operable in a closed state when subjected to the second current pulse. The open state causes the first current pulse to flow through the pair of leads and the RTD sensor. The closed state causes the second current pulse to flow through the pair of leads. The switch enables the control unit to determine the sensor resistance and corresponding sensor temperature.