Compact moving coil meter

Details Compact moving coil meter Compact moving coil meter

1976-09-13

1977-12-20

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Eccentrically pivoted coil

G01R 508

Patent

active

040644570

ABSTRACT:
A compact meter with a unitary bridge including magnet support legs to which a magnet is clamped by a magnetically permeable plate and a U-shaped magnet support. Locating surfaces on the bridge cooperate with locating surfaces on the magnet, on the plate, and on the magnet support to locate these elements with respect to the bridge and the rotor. The magnetically permeable plate extends through the coil, and the region below the magnet is substantially unobstructed so that magnets of different thicknesses can be substituted, while using the same bridge, rotor and coil assembly, and plate. In a preferred embodiment the magnetically permeable plate has offset ends which permit inverting the plate to accommodate magnets of two different thicknesses while allowing the use of the same magnet support. The rotor is of composite, solder-free and cement free construction, and includes a unique clamp together arrangement for securing the several parts of the rotor together in proper positional relationship.

REFERENCES:
patent: 2537221 (1951-01-01), Hickok
patent: 3155906 (1964-11-01), Roper
patent: 3204184 (1965-08-01), Roper
patent: 3378768 (1968-04-01), Hautmann
patent: 3395349 (1968-07-01), Bajars
patent: 3497806 (1970-02-01), Nador et al.
patent: 3621393 (1971-11-01), Pignolet

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