A pluggable rolling coil probe for nuclear magnetic resonance instrument and its design method

Abstract

The invention discloses a pluggable roll printing coil probe of a nuclear magnetic resonance instrument and a design method thereof, which relates to the nuclear magnetic resonance instrument. The probe is provided with a probe base, a tuning matching circuit, a fixing hole provided with a shielding layer shimming coil, a sample tube, a support tube, a roll printing coil, a coil upper silver ring,a coil lower silver ring, an upper elastic metal contact, a lower elastic metal contact, a force column, a tuning capacitor, a matching capacitor and conductor. The conductive silver is offset printed on the surface of the sample tube by adopting a rolling printing method, so that the manufacturing of the rolling printing coil can be completed quickly, the processing technology of printing and electroplating is avoided, and the manufacturing technology of the rolling printing coil is simplified. According to the design requirement, a printing model of different types of roll printing coils isdesigned on a photoetching substrate, conductive silver glue is attached to different types of sample tubes by using a roll printing method, and the roll printing coils with various geometric shapesand types, such as saddle-shaped coils, AG coils and birdcage coils and the like, are manufactured to extend the flexibility and applicability of the roll printing coil design.

Description

technical field [0001] The present invention relates to a nuclear magnetic resonance instrument, in particular to a nuclear magnetic resonance instrument pluggable roll printing in which a coil is made on a sample tube by a roll printing method in the production of a nuclear magnetic resonance instrument coil, and the roll printing coil is a pluggable probe device. Coil probes and their design methods. Background technique [0002] In the design of low-field miniaturized nuclear magnetic resonance instruments, the radio frequency coil is the front end of radio frequency signal transmission and reception, which is crucial to the quality of the collected nuclear magnetic resonance signal. Copper wire winding or copper sheet processing is usually used to make the coil. After the copper coil design is fixed, it can accommodate sample tubes smaller than the coil size. According to the signal-to-noise ratio of the NMR signal, it is proportional to the coil filling factor. If a sma...

AI Technical Summary

Problems solved by technology

However, the probe design of this NMR instrument is a plug-in probe designed specifically for the unique miniature planar coils and capillaries, and is not suitable for conventional-sized roll-printed solenoid coils and conventional-sized sample tubes.

Images