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Evading surface and detector frequency noise in harmonic oscillator measurements of force gradients
We introduce and demonstrate a method of measuring small force gradients acting on a harmonic oscillator in which the force-gradient signal of interest is used to parametrically up-convert a forced oscillation below resonance into an amplitude signal at the oscillator’s resonance frequency. The appr...
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| Main Authors: | , , , , |
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| Format: | Artigo |
| Language: | Inglês |
| Published: |
American Institute of Physics
2010
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| Subjects: | |
| Online Access: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2924902/ https://ncbi.nlm.nih.gov/pubmed/20733934 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1063/1.3465906 |
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