129Xe nuclear relaxation time measuring system based on LabVIEW

Abstract

The invention relates to a 129Xe nuclear relaxation time measuring system based on LabVIEW. The 129Xe nuclear relaxation time measuring system based on the LabVIEW comprises an LabVIEW upper computer, a microcomputer USB interface module and a lower computer acquisition card, wherein the LabVIEW upper computer is used for generating and displaying a pulse sequence and displaying, storing and analyzing a nuclear magnetic resonance FID signal; the microcomputer USB interface module is used for data communication between the upper computer and a lower computer; the lower computer acquisition card is used for outputting the pulse sequence and acquiring the nuclear magnetic resonance FID signal. As a friendly human-computer interaction interface is established with the LabVIEW as a software platform, the 129Xe nuclear relaxation time measuring system provided by the invention can greatly reduce the development period and reduce the development cost, can effectively finish the measurement of 129Xe nuclear relaxation time and has the advantages of simple composition, convenient operation and accurate measuring result.

Description

technical field [0001] The present invention relates to a kind of based on LabVIEW 129 An Xe nuclear relaxation time measurement system belongs to the fields of measurement technology, virtual instrument technology, and nuclear magnetic resonance. Background technique [0002] The nuclear magnetic resonance gyroscope uses alkali metal atoms and rare gas isotope atoms filled in the magnetic resonance gas chamber as the atomic source as the sensitive medium. The performance of the atomic source directly determines the performance limit that can be achieved by optical quantum manipulation. An important parameter to characterize the performance of an atom source is the relaxation time of the atom. Extending the relaxation time of the nuclear spin ensemble can improve the accuracy of the NMR gyroscope; on the other hand, the longer the relaxation time of the electron spin, the higher the detection resolution and the higher the sensitivity of the gyroscope output signal. [0003...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: to overcome the deficiencies of the existing relaxation time measurement system, which require many external instruments, complex structure, difficult pulse control, and low measurement efficiency, and provide a simple structure, convenient operation, accurate output pulse, and high measurement efficiency. higher for measuring 129 System of Xe Nucleon Relaxation Time

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