Abstract: An excitation circuit of a probe for measuring and recovering the signal emitted in return by this latter in an NMR spectrometric apparatus, connecting the probe under conditions defined by switching elements forming a portion of the circuit, to a high frequency excitation signal generator by a portion of the line or emission line, and by a portion of the line or reception line, to a receiver for acquiring and using signals emitted by the probe as a function of the specimen to be analyzed which it contains, a device being provided to carry out or verify the tuning of the measuring probe with the excitation signal generator, associated with the circuit. The device includes a directive coupler, mounted to the portion of the emission line.
Type:
Grant
Filed:
January 24, 2002
Date of Patent:
April 22, 2003
Assignee:
Bruker Biospon SA
Inventors:
Laurent Martinache, Olivier Gonella, Jean-Max Tyburn, Christian Brevard