MAGNETOSTRICTIVE TYPE DISPLACEMENT DETECTOR

PROBLEM TO BE SOLVED: To provide a magnetostrictive type displacement detector advantageous in the improvement of detection accuracy. SOLUTION: This apparatus has a magnetostrictive material 5, a reflection member 9 which is provided at one end side of the magnetostrictive material 5 to reflect an e...

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Bibliographische Detailangaben
1. Verfasser:	MIWA MORITAKA
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 magnetostrictive type displacement detector advantageous in the improvement of detection accuracy. SOLUTION: This apparatus has a magnetostrictive material 5, a reflection member 9 which is provided at one end side of the magnetostrictive material 5 to reflect an elastic wave, a permanent magnet 6, a pulse supply means 70 to supply a current pulse to the magnetostrictive material 5 and a receiving means 4 which is provided on the side of the other end part of the magnetostrictive material 5. A displacement amplification detecting means is provided to determine a physical quantity with the displacement amplified of the permanent magnet 6 in the direction of extending the magnetostrictive material 5 and detects the relative displacement of the permanent magnet 6 based on the physical quantity.