Jitter-less pulse generator elements using amorphous bistable wires

Journal Article · Sat Sep 01 00:00:00 EDT 1984 · IEEE Trans. Magn.; (United States)

DOI:https://doi.org/10.1109/TMAG.1984.1063201· OSTI ID:5226311

Mohri, K; Humphrey, F B; Okamura, K; Yamasaki, J

New jitter-less pulse generator elements are presented using amorphous magnetostrictive wires. These elements induce sharp voltage pulses with about 6V/cm/sup 2/.Oe.turn due to the large Barkhausen jumps and with about 6V/cm/sup 3/.Oe due to the Matteucci effect using external ac fields of more than 0.1 Oe at frequencies between 0.01 Hz - 10 k Hz. Jitter of the pulse inducing phase is less than 1/10 and the pulse height is about twice that of Wiegand wires, respectively. The critical field of the large Barkhausen jump is controlled by heat treatment, etching, or twisting the wires. These wires are expected to be useful for high-performance pulse generator elements for high resolution rotary encorders by combining them with magnet ring, torque sensors, proximity sensors and magnetometers.

• Research Organization: Kyushu Institute of Technology, Tobata, Kitakyushu
• OSTI ID: 5226311
• Journal Information: IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. MAG-20:5; ISSN IEMGA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMORPHOUS STATE
ELECTRIC POTENTIAL
ELECTRONIC EQUIPMENT
EQUIPMENT
ETCHING
FREQUENCY RANGE
FUNCTION GENERATORS
HEAT TREATMENTS
HZ RANGE
MAGNETIC PROPERTIES
MAGNETOSTRICTION
OSCILLATIONS
PHYSICAL PROPERTIES
PULSE GENERATORS
PULSES
RESOLUTION
SUPERCONDUCTING WIRES
SURFACE FINISHING
USES
WIRES