Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

NMR Spectrometers: Overview

NMR Spectrometers: Overview

NMR spectrometers consist of a strong magnet, a radiofrequency transmitter, and a detector attached to a computer console for recording spectra of samples containing NMR-active nuclei. In first-generation NMR instruments called continuous-wave spectrometers, the resonance frequencies of the nuclei are determined by frequency-sweep or field-sweep methods. The magnetic field strength is fixed and the rf signal is swept in the former, while the radiofrequency signal is fixed and the magnetic field...

NMR Spectrometers: Resolution and Error Correction

NMR Spectrometers: Resolution and Error Correction

When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Flexible Dual-Modal Sensing Transistor Enabled by Deep Learning Decoupling for Independent Light and Temperature Reconstruction.

Nano-micro letters·2026

Same author

Harnessing Large-Scale Multi-Omics Data for Risk Prediction and Deep Phenotyping of Valvular Heart Diseases in the General Population.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same author

Sinomenine regulates the AKT/FOXO3/GLUL pathway to inhibit pulmonary fibroblast-to-myofibroblast transition via α7nAChR against rheumatoid arthritis associated interstitial lung disease.

Pharmacological research·2026

Same author

Soft Hip Exoskeleton Reduces Physiological Cost and Perceived Exertion In Older Adults During Uphill Walking.

Journal of visualized experiments : JoVE·2026

Same author

A rapid, non-invasive blood-based reporter system for early selection of high-percentage germline chimeras in transgenic chicken production.

Poultry science·2026

Same author

Real-World Efficacy of Dupilumab in Chinese Atopic Dermatitis Patients and Development of a Prediction Model.

Allergy·2026

Search research articles

Related Experiment Video

Updated: Aug 10, 2025

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

High-Resolution Magnetoelectric Sensor and Low-Frequency Measurement Using Frequency Up-Conversion Technique.

Kunyu Sun¹, Zhihao Jiang¹, Chengmeng Wang¹

¹College of Physics, Center for Marine Observation and Communication, Qingdao University, Qingdao 266071, China.

Sensors (Basel, Switzerland)

|February 11, 2023

Summary

This study developed a highly sensitive magnetoelectric (ME) sensor for measuring weak, low-frequency magnetic fields. The sensor achieved sub-nanotesla resolution, demonstrating its potential for advanced magnetic field detection.

Keywords:

frequency up-conversion technique low-frequency weak magnetic field magnetoelectric sensors piezomagnetic material

More Related Videos

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Related Experiment Videos

Last Updated: Aug 10, 2025

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Area of Science:

Materials Science
Physics
Electrical Engineering

Background:

Magnetoelectric (ME) sensors offer ultrahigh sensitivity for measuring low-frequency weak magnetic fields.
Traditional sensors face limitations in detecting subtle magnetic field variations.

Purpose of the Study:

To develop and characterize a novel metglas/PZT-5B magnetoelectric sensor.
To evaluate the sensor's performance in measuring low-frequency AC magnetic fields.

Main Methods:

Fabrication of a metglas/PZT-5B ME sensor with a mechanical resonance frequency (fres) of 60.041 kHz.
Application of a frequency up-conversion technique for ultralow-frequency AC magnetic field measurement.

Main Results:

The sensor achieved a magnetic field resolution of 0.20 nT at fres and 0.34 nT under a DC field.
A limit of detection (LOD) below 1 nT at 8 Hz and a minimum LOD of 0.51 nT at 20 Hz were obtained using frequency up-conversion.

Conclusions:

The developed ME sensor exhibits high resolution at the sub-nanotesla level.
The sensor and frequency up-conversion technique show significant promise for low-frequency weak magnetic field measurement technologies.