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. 07, 2015
Filed:
Dec. 10, 2012
Yogeshwar Dayal, San Jose, CA (US);
William Francis Splichal, San Jose, CA (US);
Steven D. Sawyer, San Jose, CA (US);
Eric Rankin Gardner, Wilmington, NC (US);
Bruce J. Lentner, Wilmington, NC (US);
Philip O. Eisermann, Wilmington, NC (US);
Yogeshwar Dayal, San Jose, CA (US);
William Francis Splichal, San Jose, CA (US);
Steven D. Sawyer, San Jose, CA (US);
Eric Rankin Gardner, Wilmington, NC (US);
Bruce J. Lentner, Wilmington, NC (US);
Philip O. Eisermann, Wilmington, NC (US);
GE-HITACHI NUCLEAR ENERGY AMERICAS LLC, Wilmington, NC (US);
Abstract
A remote pulse TDR liquid level measurement system and method may include inserting a probe into a body of water. The probe has a probe/air interface, and the body of water includes an air/water interface. A narrow pulse is remotely transmitted to the probe via a coaxial cable. A first impedance mismatch is received from the probe/air interface in a form of a positive reflected pulse, and a second impedance mismatch is received from the air/water interface in a form of a negative reflected pulse. A time between the positive reflected pulse and the negative reflected pulse is calculated, and the time is converted to a distance, the distance being indicative of the water level.