Damping of electrical measuring instruments

Details Damping of electrical measuring instruments Damping of electrical measuring instruments

1977-10-25

1979-02-20

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Inertia control, instrument damping and vibration damping

73430, 324154R, G01R 114, G01R 500

Patent

active

041409680

ABSTRACT:
An improvement to an electrical measuring instrument having a rotary moving part capable of longitudinal movement in relation to the remainder of the instrument and including a damping arrangement comprising co-operating pads fitted respectively to the moving part and an adjacent fixed part to define a gap between the adjacent surfaces of the pads containing viscous liquid held in position by surface tension, the improvement comprising one of the pads being formed of glass-filled plastics material and the gap, when seen in cross-section, having substantially parallel sides which diverge at the edge of the gap, preferably to define a wide-angled V. Preferably the second pad has a smooth surface and may be formed of a light metal.

REFERENCES:
patent: 3439273 (1969-04-01), Sills
patent: 3590375 (1971-06-01), Sills
patent: 3919632 (1975-11-01), Roerty
patent: 3932809 (1976-01-01), Frank

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