Method and device for tuning a HF source, in particular for tuning a microwave source of an electron spin resonance spectrometer
US5397988A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1992 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jul 31, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and a device for tuning a HF source, which oscillates at a basic frequency, to a narrow-band component, in particular for tuning a microwave source 61 of an electron spin resonance spectrometer to a resonator 62. In order to mutually tune the resonance frequency F.sub.R of the resonator 62 and the basic frequency f.sub.O of the source 61, the output signal of the source 61 is mixed in a mixer 64 with a sweep signal of an oscillator 65. The behavior of the resonator 62 is observed on a visual display unit 67, via a detector 68, in the form of what is called a "mode curve", and the source 61 is re-tuned so that two dips in the mode curve are brought into coincidence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.