NON-CONTACT TORQUE SENSOR

PROBLEM TO BE SOLVED: To provide a non-contact torque sensor which is adapted for the high-speed rotation and impulsive twist of a steel shaft. SOLUTION: Torque is measured by a magnetic flux detecting element in which exciting and detecting coils are wound around an amorphous sheet. A ring-shaped s...

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Bibliographische Detailangaben
Hauptverfasser:	TABATA KAZUAKI, KYO HARUHIDE
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PHYSICS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a non-contact torque sensor which is adapted for the high-speed rotation and impulsive twist of a steel shaft. SOLUTION: Torque is measured by a magnetic flux detecting element in which exciting and detecting coils are wound around an amorphous sheet. A ring-shaped sensor as shown in Fig. 6 is attached to the steel shaft in a non-contact manner. The exciting coil and detecting coil of a magnetic pole embedded in the ring are arranged in the 90-degree direction. A change in magnetic permeability caused by the torque of the steel shaft is thus measured by the magnetic flux detecting element, thereby calculating and displaying the torque. COPYRIGHT: (C)2010,JPO&INPIT