Low field nuclear magnetic resonance probe based on printed circuit board helmholtz coil

Abstract

The invention discloses a low field nuclear magnetic resonance probe based on a printed circuit board helmholtz coil. A PCB substrate is taken as a substrate. An upper surface of the PCB substrate is provided with a first bonding pad, a second bonding pad, an upper portion lead wire and an upper portion plane coil. A lower surface of the PCB substrate is provided with a lower portion lead wire and a lower portion plane coil. An outer end of the upper portion plane coil is connected with the first bonding pad through the upper portion lead wire. An outer end of the lower portion plane coil is connected with the lower portion lead wire. An inner end of the upper portion plane coil and an inner end of the lower portion plane coil are connected through a first metalized through hole. The second bonding pad and the lower portion lead wire are connected through a second metalized through hole. A central section of the PCB substrate is provided with a sample through hole which passes through up and down. The nuclear magnetic resonance probe based on PCB helmholtz coil provided in the invention adopts a PCB technology and possesses the following advantages that manufacturing is simple; cost is low; a period is short; mass production can be realized and so on. And a radio-frequency field which is relatively uniform can be generated.

Description

technical field [0001] The invention relates to a low-field nuclear magnetic resonance probe based on a printed circuit board (printed circuit board, PCB) Helmholtz coil. Background technique [0002] Compared with other analytical techniques, nuclear magnetic resonance (NMR) technology has the characteristic of not destroying the tested sample, so it is widely used in chemical, material and medical applications. The coil-based NMR probe is one of the core components of the nuclear magnetic resonance instrument, and the quality of the coil development directly affects the performance of the nuclear magnetic resonance system. Therefore, both domestic and foreign research institutions and business units regard coils as an important research and development object. [0003] The solenoid coil was developed in the early stage, and the main method was to wind the wire on the capillary by hand (Peck, T.L., et al. Design and analysis of microcoils for NMR microscopy. Journal of Mag...

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a low-field nuclear magnetic resonance probe based on a printed circuit board Helmholtz coil, which solves the problems of difficult manufacture and cost in the production of the existing Helmholtz coil. High, long cycle, non-batch and other issues

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