Vibration monitoring systems
First Claim
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1. A method of monitoring a device for vibration exposure, the method comprising:
- sensing a vibration using an unpowered transducer coupled to a device being monitored;
determining a frequency and amplitude of the sensed vibration using an electrical circuit in communication with the transducer, the circuit including a tiered plurality of band pass filters and powered only by an output of the transducer; and
visually displaying the frequency and amplitude information using a passive display having a plurality of visual indicators wherein each of the visual indicators is configured to change permanently and automatically from a first human readable state to a second human readable state in response to the output of the transducer; and
wherein the change in human readable state is permanent and persists in the absence of electrical power.
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Abstract
A vibration monitoring and analysis system may include a transducer configured to convert sensed vibration into an alternating current. A processing module may analyze the alternating current and produce an output configured to convey information regarding characteristics of the alternating current. One or more analysis modules may be utilized to compare a waveform of the sensed vibration to known patterns, for example to identify known events and/or conditions.
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Citations
9 Claims
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1. A method of monitoring a device for vibration exposure, the method comprising:
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sensing a vibration using an unpowered transducer coupled to a device being monitored; determining a frequency and amplitude of the sensed vibration using an electrical circuit in communication with the transducer, the circuit including a tiered plurality of band pass filters and powered only by an output of the transducer; and visually displaying the frequency and amplitude information using a passive display having a plurality of visual indicators wherein each of the visual indicators is configured to change permanently and automatically from a first human readable state to a second human readable state in response to the output of the transducer; and wherein the change in human readable state is permanent and persists in the absence of electrical power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification