Fiber grating sensor and system thereof

The utility model belongs to the field of fiber grating and discloses a fiber grating sensor and a system thereof. The fiber grating sensor comprises a first sensing head and a second sensing head, wherein the first sensing head comprises a first optical fiber which is provided with a first Bragg gr...

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Bibliographische Detailangaben
1. Verfasser:	GAO CHUNXUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The utility model belongs to the field of fiber grating and discloses a fiber grating sensor and a system thereof. The fiber grating sensor comprises a first sensing head and a second sensing head, wherein the first sensing head comprises a first optical fiber which is provided with a first Bragg grating and a second Bragg grating; the first Bragg grating is packaged by an insulating material; the second Bragg grating is provided with a piezoelectric ceramic chip and packaged by an insulating material; the second sensing head comprises a second optical fiber which is provided with a third Bragg grating and a fourth Bragg grating; the third Bragg grating is exposed in the air; and the fourth Bragg grating is provided with a piezoelectric ceramic chip which is attached with a current-voltage converter, and is packaged by an insulating material. The fiber grating sensor and the system thereof can measure the change of a plurality of physical parameters such as temperature, pressure, current and voltage by adopti