A New Thin Pickup Coil for Magnetic Head Type Torque Sensors

Ichiro Sasada, F. Koga, K. Harada

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A new thin pickup head is proposed for magnetic head type torque sensors. The new pickup head consists of a stacked pair of figure 8 coils, in which one of the coils is rotated in the coil plane by 90° from the other. The applied torque can be detected from the difference in self-inductances of a pair of the figure 8 coils faced to the shaft through an air gap in a manner that each figure 8 coil sees the permeability of the shaft along either 45° or -45° from the axis. Unlike conventional pickup heads of 3-D structure, the proposed pickup head is thin, hence making it easy to build the torque sensor on a shaft. Experimental results using a magnetic yoke backing the pickup head showed a good linearity with small hysteresis.

Original languageEnglish
Pages (from-to)3186-3188
Number of pages3
JournalIEEE Transactions on Magnetics
Volume29
Issue number6
DOIs
Publication statusPublished - Jan 1 1993

Fingerprint

Magnetic heads
Pickups
torque
coils
Torque
sensors
Sensors
Inductance
Hysteresis
backups
inductance
linearity
permeability
hysteresis
Air
air

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy (miscellaneous)

Cite this

A New Thin Pickup Coil for Magnetic Head Type Torque Sensors. / Sasada, Ichiro; Koga, F.; Harada, K.

In: IEEE Transactions on Magnetics, Vol. 29, No. 6, 01.01.1993, p. 3186-3188.

Research output: Contribution to journalArticle

Sasada, Ichiro ; Koga, F. ; Harada, K. / A New Thin Pickup Coil for Magnetic Head Type Torque Sensors. In: IEEE Transactions on Magnetics. 1993 ; Vol. 29, No. 6. pp. 3186-3188.
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