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:
Jan. 19, 2021
Filed:
Apr. 16, 2020
Applicant:
Mettler-toledo Safeline Ltd., Manchester, GB;
Inventor:
Yifei Zhao, Manchester, GB;
Assignee:
METTLER-TOLEDO SAFELINE LTD., Manchester, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/10 (2006.01);
U.S. Cl.
CPC ...
G01V 3/107 (2013.01);
Abstract
The method and system are disclosed for operating a metal detector having a balanced coil system with a drive coil that is connected to a transmitter unit which provides a transmitter signal with at least one operating frequency (f), and with first and second detection coils that provide an output signal to a receiver unit that processes a related receiver signal which includes an imbalance signal, and that provides digital in-phase and quadrature components (d, d) of the demodulated imbalance signal.