Invention Grant
- Patent Title: Spun highly-birefringent fiber for current sensing with inherent insensitivity to temperature
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Application No.: US15650361Application Date: 2017-07-14
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Publication No.: US10466278B2Publication Date: 2019-11-05
- Inventor: Georg Müller , Klaus Bohnert , Andreas Frank , Yang Lin
- Applicant: ABB Schweiz AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Taft Stettinius & Hollister LLP
- Agent J. Bruce Schelkopf
- Main IPC: G01R15/24
- IPC: G01R15/24 ; G02B6/02 ; G02B6/10
Abstract:
It is proposed to use a spun birefringent fiber for a current sensor or magnetic field sensor. The fiber has a birefringence that increases with temperature. In this case, the temperature dependence of the fiber's sensitivity to magnetic fields counteracts the temperature dependence of the fiber's Verdet constant, which allows to design current and field sensors that have reduced temperature dependence.
Public/Granted literature
- US20170315158A1 SPUN HIGHLY-BIREFRINGENT FIBER FOR CURRENT SENSING WITH INHERENT INSENSITIVITY TO TEMPERATURE Public/Granted day:2017-11-02
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