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. 28, 1992
Filed:
Apr. 29, 1991
Hsiang M Chen, Latham, NY (US);
Paul Lewis, Scotia, NY (US);
Donald S Wilson, Clifton Park, NY (US);
Richard A Dorman, Wynantskill, NY (US);
Mechanical Technology Incorporated, Latham, NY (US);
Abstract
The present invention relates to an active mount system in which a vibration sensor such as a force gauge or an accelerometer senses vibrational forces transmitted through a resilient mount by a load such as a machine. The invention further includes a digital narrow-band least mean square filter that receives a sinusoid synchronous with the rotating machinery and an error signal from the load cell and generates a corrective signal to be amplified and transmitted to the electromagnet which supplies an attenuating force to the resilient mount in response to the signal. As an alternative, a wide frequency range control can be realized by the use of a wide frequency range, high gain amplifier and multi-filter phase compensation circuitry to generate the corrective force signal which is amplified and transmitted to the electromagnet.