NORMALLY CLOSED GRADIENT VIBRATION SENSOR

PROBLEM TO BE SOLVED: To provide a normally closed gradient vibration sensor which has a large durability and an ample wear resistance and which can not only perform a function as a gradient switch but also sufficiently perform a function as a vibration sensor. SOLUTION: The normally closed gradient...

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Bibliographische Detailangaben
1. Verfasser:	ARAI KIYOTSUGU
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES GYROSCOPIC INSTRUMENTS MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RELAYS SELECTORS SURVEYING TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a normally closed gradient vibration sensor which has a large durability and an ample wear resistance and which can not only perform a function as a gradient switch but also sufficiently perform a function as a vibration sensor. SOLUTION: The normally closed gradient vibration sensor comprises a pair of container-like electrodes 1 and 2 having a substantially semispherical recess 3 formed at an inside and gold-plated on at least the recess 3, installed at a predetermined interval in a lateral direction and mounted at a non- conductive case 6 in a state in which the opposite recess surfaces 3 are opposed, and a conductive sphere 9 gold-plated on its front surface and rotatably contained between the electrodes 1 and 2.