The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 1978
Filed:
Nov. 26, 1976
Lincoln Stark Ferriss, Lincoln Park, NJ (US);
The Singer Company, Little Falls, NJ (US);
Abstract
A digitally responsive electrostatic accelerometer having a pendulum pivotally movable about a hinge. A pair of torquer electrodes mounted on opposite sides of the pendulum are connected to a source of constant current. As the pendulum moves from its null position under the influence of acceleration forces, the displacement from null position is indicated by an increase in charge on the electrode which is in closer proximity to the pendulum. Electronic circuit means are provided to detect the direction of displacement of the pendulum from null and to apply a charge to the proper torquer electrode to force the pendulum back to null position. The principle of operation of the device is based upon the fact that the magnitude of the voltage on the torquer electrodes when charged from a constant current source contains information indicative of the position of the pendulum from null.