Method and device for tuning a HF source, in particular for tuni

Details Method and device for tuning a HF source, in particular for tuni Method and device for tuning a HF source, in particular for tuni

1992-07-31

1995-03-14

Wieder, Kenneth A.

Electricity: measuring and testing

Particle precession resonance

Using an electron resonance spectrometer system

G01R 3320

Patent

active

053979885

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.

REFERENCES:
patent: 3798532 (1974-03-01), Hausser
patent: 3798553 (1974-03-01), Sakamoto
patent: 3829760 (1974-08-01), Bozanic et al.
patent: 4544902 (1985-10-01), Harris
Electron Spin Resonance, Second Edition, A Comprehensive Treatise on Experimental Techniques by Charles P. Poole, Jr., pp. 87, 88, 89, 96, 97, 622 (1983).

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