Magnetic amplifier housing and detector for an improved tamper a

Details Magnetic amplifier housing and detector for an improved tamper a Magnetic amplifier housing and detector for an improved tamper a

1988-06-17

1989-09-12

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

335205, 335207, 340572, 340687, 340693, G08B 1306

Patent

active

048664260

ABSTRACT:
A magnetic amplifier housing uses a base, dowel and shunt to magnetizable terial to concentrate the magnetic field of a ring magnet through a Hall Effect transistor to provide an improved detector device with increased gain. The detector device causes polarity reversal when tampered with, ensures positive mechanical alignment of the transistor and mechanical components, and protection of the transistor from mechanical damage.

REFERENCES:
patent: 3199630 (1965-08-01), Engel et al.
patent: 3668579 (1972-06-01), Harman
patent: 4295118 (1981-10-01), Herr et al.
patent: 4536754 (1985-08-01), Holce et al.

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