Harness, Dickey & Pierce, P.L.C.
Electromagnetic impedance sensor and passenger protection system
An electromagnetic impedance sensor detects an object made of conducting material or soft magnetic material with contact-free. The sensor includes: a detection coil; and a detection circuit for supplying electricity to the coil and for measuring electromagnetic impedance change in the coil. The detection coil includes multiple coil portions provided by one wire. One coil portion has a side adjacent to a corresponding side of another coil portion. The side and the corresponding side extend along with a direction, and the side has a current flowing direction, which is the same as the corresponding side.
Nippon Soken, Inc. Denso Corporation
G
G01D
inventional
Norio Yuuji Kyojiro Toshihito Masanori
Sanma Kakuya Suzuki Nonaka Kawaura