Vibration sensor with mechanical isolation member
AssigneePCB Piezotronics, Inc.
InventorsGeorge Zusman, David A. Corelli
Life of this patent
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Abstract
An apparatus and system for sensing vibration in rotary or reciprocating machinery, such as motors, pumps, fans, gearboxes, compressors, turbo-machinery or high-speed spindles, which comprises a mechanical isolation member (14) interposed between a sensor base (15) and a main sensor body (11). In one aspect, the mechanical isolation member comprises a coaxial cylinder of plastic, rubber or polyurethane which is compressed between the sensor base and main sensor body.
Claims25
A vibration sensor for measuring vibration in a machine, said vibration sensor comprising:
- a sensor base adapted for mounting on a machine, said sensor base comprising a sensitive element for measuring vibration of said machine;
- a main sensor body;
- a mechanical isolation member interposed between said sensor base and said main sensor body, arranged such that said sensor base is not in direct contact with said main sensor body;
- and
- an electrical assembly within said main sensor body for processing said measured vibration of said machine.
A vibration sensing system for measuring vibration in a machine, said vibration sensing system comprising:
- a sensor base adapted for mounting on a machine, said sensor base comprising a sensitive element for measuring vibration of said machine;
- a main sensor body;
- a mechanical isolation member interposed between said sensor base and said main sensor body, arranged such that said sensor base is not in direct contact with said main sensor body;
- an electrical assembly within said main sensor body for processing said measured vibration of said machine;
- wherein said main sensor body comprises a transmission element for transmission of information respecting said measured vibration of said machine.
A vibration sensor for measuring vibration in a machine for operation at a selected working frequency greater than 10 kHz, said vibration sensor comprising:
- a sensor base adapted for mounting on a machine, said sensor base comprising a sensitive element for measuring vibration of said machine;
- a main sensor body;
- a mechanical isolation member interposed between said sensor base and said main sensor body, arranged such that said sensor base is not in direct contact with said main sensor body;
- means for processing said measured vibration of said machine;
- and
- means for transmitting information respecting said measured vibration of said machine to an external processing device.
Dependencies are inferred from the claim text.