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Resonance identification in hydraulic cylinder piston position sensingReference Number: N 01-03 Inventors: Morgan, Dennis E. USPTO Link: 5780743 Invention SummaryThe ability to be able to identify, distinguish and verify a lock onto harmonic frequency signals in the oil of a hydraulic cylinder using a ratio between consecutively detected harmonics. The identification is useful in providing early and reliable harmonic resonance "lock on" and the ability to "lock on" to a particular order harmonic resonance. |
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