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:
Aug. 15, 1989
Filed:
Dec. 18, 1987
Akio Ito, Konosu, JP;
Jeco Company Limited, Gyoda, JP;
Abstract
A servo type accelerometer comprises a photoelectric element which is made of a single packaged element and has two separated photoelectric parts, a light-emitting element opposite to the photoelectric element, a pendulum having a member for limiting an optical path of light emitted by the light-emitting element, the member being arranged between the photoelectric element and the light-emitting element, and a frame for supporting the pendulum. The accelerometer further comprises a detection unit for detecting a rotational displacement of the pendulum corresponding to acceleration by use of output signals of the photoelectric parts to produce a detection signal corresponding to the rotational displacement, and torque generating unit for generating a torque corresponding to the detection signal to drive the pendulum towards its original position.