Patent ID: 6892581

Claim:
A vibration sensing apparatus for being placed in sensory contact with a machine, the apparatus having a resonant frequency, said apparatus comprising: a housing having a first end and a second end; a magnet disposed within said housing adjacent the first end and rigidly affixed thereto for magnetically attaching the apparatus in a desired orientation to a mounting surface that transmits machine vibration; a multi-axis vibration sensor disposed within said housing integral with the magnet for sensing vibration produced by the machine along a plurality of machine axes and producing a plurality of sensor signals in the form of an electrical charge corresponding to sensed vibration; conditioning circuitry for conditioning the sensor signals and producing conditioned sensor signals, said conditioning circuitry including: a filter for receiving the sensor signals and attenuating the sensor signals at the resonant frequency of the apparatus, producing filtered sensor signals in the form of an electrical charge; and a converter for converting the filtered sensor signals to an electrical signal for use by a peripheral device.