MAGNET USED FOR SIGNAL GENERATOR AND MAGNETIZATION METHOD

• Main Author: MARUYAMA RIYOUJI
• Format: Patent
• Language: English
• Published: 27.12.1983
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BASIC ELECTRIC ELEMENTS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; INDUCTANCES; MAGNETS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TARIFF METERING APPARATUS; TESTING; TRANSFORMERS

PURPOSE:To obtain a signal similar to a square wave or a peaked wave by arranging a magnet so as to be minimized in the interval between magnetic poles while the width of the magnetic poles is made relatively large. CONSTITUTION:Sections 10a, 10b, 10c... radially divided of a cylinder 10 are so arranged that the S pole and the N pole are alternately magnetized and adjacent poles are brought closer to each other in the interval therebetween as much as possible while the magnetic poles themselves has a relatively constant expanse. In this magnetic flux pattern, there is a growing gradient DELTAy/DELTAx in the rise to the peak from the zero point thereby minimizing the errors DELTAx' even when the pattern deviates by DELTAy due to a poor magnetization accuracy or the like. To make a magnet, a plurality of relatively broad yokes 12 are arranged in the perimeter of a cylinder 11 made of a magnetic material are arranged with the formation of a groove 13 having a clearance as narrow as possible. The coil 14 is to be used for magnetization.