Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural meters
Patent
1978-02-03
1979-05-29
Rolinec, Rudolph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural meters
324151R, 346139R, G01R 1102, G01R 116
Patent
active
041568443
ABSTRACT:
An improved multi-channel galvanometer assembly is disclosed particularly well adapted for use in such instruments as electroencephalographs and the like. The assembly includes a soft steel combination return path structure and frame supporting a plurality of galvanometer movements. The design employs pairs of samarium cobalt magnets held in place adjacent and on opposite sides of the coil of each galvanometer by magnetic attraction to the steel return path structure. The galvanometers themselves are each mounted on an aluminum support plate which also serves as a shield to prevent magnetic coupling between adjacent galvanometer coils when the galvanometers are assembled in the support frame. The galvanometers on their support plates are each individually removable and/or replaceable. The result is a lighter, smaller, multi-channel galvanometer assembly which is readily expandable and easily serviced.
REFERENCES:
patent: 2478329 (1949-08-01), Shaper
patent: 3273061 (1966-09-01), Rumpelein et al.
Corwin William C.
Pawlak Raymond M.
Beckman Instruments Inc.
Harder Paul R.
Karlsen Ernest F.
Kowalski Frank J.
Rolinec Rudolph V.
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