Magnetic detecting unit having aligned sensors

Details Magnetic detecting unit having aligned sensors Magnetic detecting unit having aligned sensors

1990-03-21

1993-01-19

LaRoche, Eugene R.

Registers

Coded record sensors

Particular sensor structure

360121, 360129, G06K 708, G11B 5265, G11B 529, G11B 510

Patent

active

051809036

ABSTRACT:
A magnetic sensor unit includes an elongated nonmagnetic sensor case, magnets, magnetic sensors, and positioning portions. The sensor case has a plurality of sensor housing recesses formed in a row in its upper surface in its longitudinal direction, and magnet housing recesses formed in a row in its lower surface at positions respectively corresponding to the sensor housing recesses. At least the upper surface of the sensor case is covered with a nonmagnetic cover. The magnets are respectively housed in the magnet housing recesses of the sensor case. The magnetic sensors are respectively housed in the sensor housing recesses of the sensor case and have magnetoelectric transducers magnetically biased by the magnets. The positioning portions are respectively formed in the sensor housing recesses of the sensor case and respectively position the magnetic sensors in a longitudinal direction thereof and a direction perpendicular thereto.

REFERENCES:
patent: 3806902 (1974-04-01), Drees et al.
patent: 4117523 (1978-09-01), Masuda et al.
patent: 4439671 (1984-03-01), Helle
patent: 4574190 (1986-03-01), Nishimura
patent: 4642716 (1987-02-01), Wakabayashi et al.
patent: 4841399 (1989-06-01), Kitada et al.
patent: 4896235 (1990-01-01), Takino et al.
patent: 4926278 (1990-05-01), Schoenmakers
patent: 4988850 (1991-01-01), Masuda et al.
JP-A-58 106658 (Denki Onkiyou K.K.) 25 Jun. 1983 in: Patent Abstracts of Japan; vol. 7, No. 212 (P-224)(1357) 20 Sep. 1983.

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