Digital damping control of nanomechanical test instruments
US8738315B2 · kind B2 · utility
2Cited by
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24Claims
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Key dates
| Filing date | Jul 6, 2009 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Mar 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0286
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of damping control for a nanomechanical test system, the method including providing an input signal, providing an output signal representative of movement of a displaceable probe along an axis in response to the input signal, performing a frequency-dependent phase shift of the output signal to provide a phase-shifted signal, adjusting the phase-shifted signal by a gain value to provide a feedback signal, and adjusting the input signal by incorporating the feedback signal with the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.