A nondestructive method for express testing of condensed media in ecological monitoring

作者：Davydov V V^*; Myazin N S; Davydova T I

来源：Russian Journal of Nondestructive Testing, 2017, 53(7): 520-529.

DOI：10.1134/S106183091707004X

• nuclear magnetic resonance
• state of medium
• ecological monitoring
• express testing
• longitudinal T-1 and transverse T-2 relaxation times
• magnetic field
• signal-to-noise ratio

A nondestructive method for express testing of the state of condensed media is considered. The method is based on the developed new design of a small-sized nuclear magnetic resonance (NMR) spectrometer. The proposed engineering solutions and techniques have made it possible to detect weak-field NMR signals from various nuclei (that have magnetic moments) in a small (less than 0.3 cm(3)) volume of a condensed medium. This has extended significantly the capabilities of the NMRbased nondestructive method of express testing of condensed media, especially for the purposes of ecological monitoring of hard-to-reach territories. Results of experimental research of various media are presented.

• 出版日期2017-7
• 单位香港理工大学