Invention Grant
- Patent Title: Non-contact magnetostrictive current sensor
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Application No.: US15125054Application Date: 2015-03-10
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Publication No.: US09983234B2Publication Date: 2018-05-29
- Inventor: Gareth J. Knowles , William M. Bradley , Jonathan M. Zook , Ross Bird , Safakcan Tuncdemir
- Applicant: Qortek, Inc.
- Applicant Address: US PA Williamsport
- Assignee: QorTek, Inc.
- Current Assignee: QorTek, Inc.
- Current Assignee Address: US PA Williamsport
- Agency: Cahn & Samuels, LLP
- International Application: PCT/US2015/019778 WO 20150310
- International Announcement: WO2015/138505 WO 20150917
- Main IPC: G01B7/24
- IPC: G01B7/24 ; G01R33/18 ; G01R15/18 ; H01L41/12 ; G01L1/22 ; G01R33/00 ; G01L1/12

Abstract:
A non-contact, current sensor includes a gapped magnetic core configured to circumscribe a current carrying conductor. A magnetostrictive element is mechanically coupled to the gapped magnetic core. Current flowing in the current carrying conductor induces a magnetic field in the magnetic core that flows through the magnetostrictive element. The gapped magnetic core is provided with mounting sections to which the magnetostrictive element is mechanically coupled. The mounting sections have a geometry that increases magnetic flux in the magnetostrictive element. A strain gauge is mechanically coupled to the magnetostrictive element to measure displacement in the element induced by the magnetic flux.
Public/Granted literature
- US20170074906A1 NON-CONTACT MAGNETOSTRICTIVE CURRENT SENSOR Public/Granted day:2017-03-16
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