Contact making and breaking device and system for measuring low

Details Contact making and breaking device and system for measuring low Contact making and breaking device and system for measuring low

1996-04-02

1998-04-21

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Vacuum or hermetically sealed type

361 88, 307116, H01H 166

Patent

active

057422168

ABSTRACT:
A contact making and breaking device improves the dielectric absorption property of capacitance between one signal wire brought out from a reed switch and an conductive casing. A low current measurement system using the contact making breaking device greatly shortens the measurement waiting time when low current is measured. The contact making and breaking device includes a reed switch with first and second signal wires brought out from either end, a conductive casing, and an insulating material formed between at least the first signal wire and the conductive casing. A tubular conductor is emplaced in the region in which the insulating material is formed and at least partially encloses the reed switch. The tubular conductor is connected to the first signal wire.

REFERENCES:
patent: 4638276 (1987-01-01), Hauk
patent: 4661791 (1987-04-01), Wakasugi et al.
patent: 4922369 (1990-05-01), Sakatos
patent: 5252936 (1993-10-01), Norimatsu

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