Controller for stopping main axle at fixed position

Abstract

Abstract PURPOSE: To stop a main axle at a fixed position accurately by using a sensor that outputs positive and negative voltage signals at prescribed levels and also outputs a deviation voltage crossing the prescribed levels. CONSTITUTION: The inside of case 10a' of magnetization body 10a and rubber magnets 10a" and 10a''' are fitted to the main axle being equipped so that magnetism changes from pole S to pole N in the revolving direction. Sensor 10b is equipped opposing to the mechanical fixed part and inside of case 10b', three reactors SRA are arranged in the revolving direction. Coils L 1 and L 2 are wound around cores CR of SRAs differing in polarity and to common terminal TA of respective coils, a high frequency signal is inputted, so that outputs that corresponds to positions will be sent from terminals TB and TC. When the center line of SRA agree with that of magnetization body 10a, a voltage of zero is developed and when it nearly agrees, a positive or negative voltage is outputted. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Yoshitoku Kozai
• 👤 Yoshimoto Fujioka
• 👤 Naoto Oota

Bibliographic Details