Strongly coupled fourth-order resonance coil systems for enhanced signal detection
US11385307B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2017 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Dec 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3635
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A resonant coil system with improved sensitivity and signal-to-noise performance is described. A primary coil is tuned to a first resonance frequency and inductively coupled to a secondary coil that is separately tuned to a second resonance frequency. The primary and secondary coils form a resonant system with a resonance frequency that is a function of the primary and secondary coil resonance frequencies. The resonance frequency of the coil system is less than both the primary resonance frequency and the secondary resonance frequency. The mutual inductance between the two coils is high and the resonance frequency of the coil system's parallel mode is well separated from that of the anti-parallel mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.