Zeptonewton and Attotesla per Centimeter Metrology With Coupled Oscillators
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866911884384403456 |
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| author | Bouche, Ian Javor, Josh Som, Abhishek Campbell, David K. Bishop, David J. |
| author_facet | Bouche, Ian Javor, Josh Som, Abhishek Campbell, David K. Bishop, David J. |
| contents | We present the coupled oscillator: a new mechanism for signal amplification with widespread application in metrology. We introduce the mechanical theory of this framework, and support it by way of simulations. We present a particular implementation of coupled oscillators: a microelectromechanical system (MEMS) that uses one large (~100mm) N52 magnet coupled magnetically to a small (~0.25mm), oscillating N52 magnet, providing a force resolution of 200zN measured over 1s in a noiseless environment. We show that the same system is able to resolve magnetic gradients of 130aT/cm at a single point (within 500um). This technology therefore has the potential to revolutionize force and magnetic gradient sensing, including high-impact areas such cardiac and brain imaging. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_14678 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Zeptonewton and Attotesla per Centimeter Metrology With Coupled Oscillators Bouche, Ian Javor, Josh Som, Abhishek Campbell, David K. Bishop, David J. Applied Physics We present the coupled oscillator: a new mechanism for signal amplification with widespread application in metrology. We introduce the mechanical theory of this framework, and support it by way of simulations. We present a particular implementation of coupled oscillators: a microelectromechanical system (MEMS) that uses one large (~100mm) N52 magnet coupled magnetically to a small (~0.25mm), oscillating N52 magnet, providing a force resolution of 200zN measured over 1s in a noiseless environment. We show that the same system is able to resolve magnetic gradients of 130aT/cm at a single point (within 500um). This technology therefore has the potential to revolutionize force and magnetic gradient sensing, including high-impact areas such cardiac and brain imaging. |
| title | Zeptonewton and Attotesla per Centimeter Metrology With Coupled Oscillators |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2402.14678 |