DISPLACEMENT DETECTION DEVICE USING FBG OPTICAL FIBER SENSOR

PROBLEM TO BE SOLVED: To provide a displacement detection device and expansion/contraction detection device having a structure facilitating selection of members according to a measurement range without requiring installation of a rotary drum and constituted at low-cost. SOLUTION: There are provided:...

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Bibliographische Detailangaben
Hauptverfasser:	ABO TOSHIRO, KUMAGAI KOJU, TAMURA TAKUYUKI, MIWA SHIGERU, CHIKAHISA HIROSHI, TSUTSUI MASAYUKI, SHIOTANI TOMOMOTO
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a displacement detection device and expansion/contraction detection device having a structure facilitating selection of members according to a measurement range without requiring installation of a rotary drum and constituted at low-cost. SOLUTION: There are provided: a device body including therein a movement groove with a slope angle and provided with a guide groove; a movable part; a band-like bending strain detection sensor capable of being translated, wherein a guide pin is loosely fitted into the guide groove; and a tension member stretching the band-like bending strain detection sensor from the back and forth directions of the device body. The value of the bending strain in the band-like bending strain detection sensor when the movable part is obliquely moved and the guide pin is translated is detected. COPYRIGHT: (C)2007,JPO&INPIT