Patent · US Expired

Nuclear magnetic resonance apparatus having at least two transmission frequencies

US5442292A · kind A · utility

9Cited by

2References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Heinrich Kolem · Effeltrich, DE
Wilfried Schnell · Forchheim, DE
Rolf Sauter · Ergolding, DE
Karsten Wicklow · Erlangen, DE
Hermann Requardt · Erlangen, DE

Key dates

Filing date	Aug 1, 1994
Grant date	Aug 15, 1995
Priority date	—
Expiry date	Aug 1, 2014

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/62
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

For improving the spectral resolution and/or the signal-to-noise ratio of a nuclear magnetic resonance apparatus for examining first types of atomic nuclei that are nuclear-magnetically coupled to second types of atomic nuclei, signals are additionally emitted on the resonant frequency of the second type of atomic nucleus during the examination of the first type of atomic nucleus. To this end, the nuclear magnetic resonance apparatus includes a reception channel and only one transmission channel for both resonant frequencies. The transmission channel contains a respective synthesizer for each resonant frequency, which define the transmission frequency and contains a modulator unit shared in common by both resonant frequencies.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.