Magnetic pickup sensor

Details Magnetic pickup sensor Magnetic pickup sensor

1993-01-05

1995-05-23

O'Shea, Sandra L.

Electricity: measuring and testing

Magnetic

Displacement

29606, 324174, G01B 730, G01R 33038, H01F 7127, H02K 2138

Patent

active

054184541

ABSTRACT:
A magnetic pickup sensor which includes a sensor assembly 11 and a molded resin housing 12 disposed around the assembly. The sensor assembly has a pickup coil 15 wound around an iron core 14 for detecting a change in the magnetic flux of a magnet 13, and a support unit including a coil bobbin 18 and a spacer 20 for supporting the magnet and core assembly. The iron core has one end 14a projecting outwardly from the molded resin, and the spacer of the support unit has a positioning recess 23 for engagement by a positioning pin 30 of a mold die. Therefore, the sensor assembly can be accurately positioned and held within the mold die during molding of the housing.

REFERENCES:
patent: 4268771 (1981-05-01), Lace
patent: 5010263 (1991-04-01), Murata

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