The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 1989
Filed:
Jul. 27, 1988
Peter Dejon, Rheinstetten-Morsch, DE;
Manfred Spraul, Ettlingen, DE;
Bruker Analytische Messtechnik GmbH, Rheinstetten, DE;
Abstract
A test head for NMR spectrometers comprises an rf coil mounted on a carrier pipe and a shielding which extends over at least one section of two parallel conductors extending in the axial direction of the carrier pipe. In order to improve the effect of shielding, the shielding is connected, in an electrically conductive manner, to a turn section of the rf coil which contains a cold point. The shielding is thereby maintained at a fixed neutral potential, relative to the rf voltage supplied, with the result that no fields impairing the measuring accuracy and resolution of the spectrometer can any longer exist in the shielded area. The shielding may be connected directly to one turn section of the coil, for example by soldering.