A figure-of-eight flexible pickup coil for a magnetostrictive torque sensor

I. Sasada, Y. Etoh, K. Kato

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


A new structure of the pickup coil made on a double-layered flexible printed circuit board (PCB) is proposed for a magnetostrictive torque sensor. The pickup coil employs a pair of figure-of-eight coils in which one coil is 90° angle rotated from the other. Each of figure-of-eight coils has 14 turn windings made of 18-μm-thick copper conductor with 100-μm/100-μm line and space. The shape of the coil is a square, and its side length is 15 mm. A torque sensor is constructed by using a shaft with a magnetostrictive sleeve made of a martensitic stainless steel. The pickup coil system was coupled to it with an airgap of 0.3 mm. The performance of the torque sensor is reported.

Original languageEnglish
Pages (from-to)3309-3311
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number10
Publication statusPublished - Oct 2006

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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