Related Experiment Video
Updated: Sep 10, 2025

Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
Design of a low-power gradient amplifier for benchtop nuclear magnetic resonance spectrometer
Yuhao Gao1, Tingwei Liu2, Jinyu Yang1
1School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China; Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China.
Abstract:
Benchtop Nuclear Magnetic Resonance (BNMR) technology has gained increasing attention in chemical and pharmaceutical applications due to its compact configuration and operational flexibility. However, the implementation of conventional commercial gradient amplifiers in BNMR systems remains challenging because of their excessive power consumption and bulky dimensions. To address these limitations, this study presents a novel gradient amplifier design optimized for BNMR applications, characterized by a satisfactory linearity in 0-2.5A output current range (slope: 0.9205, offset: 0.0359 and determination coefficient: 0.9963) and achieving a rise time of 1.41μs across dynamic output conditions (60 %, 80 %, 100 % amplitude range). Experimental validation confirms that these technical improvements satisfy the critical requirements for practical BNMR implementations.
Related Concept Videos
NMR Spectrometers: Overview
NMR Spectrometers: Resolution and Error Correction
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
Atomic Nuclei: Magnetic Resonance
Atomic Nuclei: Nuclear Relaxation Processes

