Velocity pickups of the horizontal seismometer type

Details Velocity pickups of the horizontal seismometer type Velocity pickups of the horizontal seismometer type

1974-11-25

1977-03-01

Birmiel, H.A.

Communications: electrical

Selective

Interrogation response

73 71, 73 712, 73517R, G01V 116, H04R 2300

Patent

active

040104435

ABSTRACT:
The invention relates to an electromagnetic velocity pickup of the horizol seismometer type, wherein an oscillating mass is elastically suspended as an inverted pendulum with the aid of a deformable system of the articulated parallelogram type. The pickup is characterized in that the suspension comprises rigid beams and at least one elastic pivot.

REFERENCES:
patent: 2587346 (1952-02-01), Loper et al.
patent: 2595067 (1952-04-01), Flint
patent: 2754434 (1956-07-01), Frank
patent: 3297982 (1967-01-01), Beach
patent: 3636774 (1972-01-01), Allison
patent: 3685011 (1972-08-01), Lehner

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