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

Resistivity

Resistivity

When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:

You might also read

Related Articles

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

Sort by

Same author

Wearable sensors for respiratory protection in occupational settings.

Journal of safety research·2026

Same author

Optical Fiber Sensor with a Hydrophobic Filter Layer for Monitoring Hydrogen under Humid Conditions.

ACS sensors·2025

Same author

Achieving precise multiparameter measurements with distributed optical fiber sensor using wavelength diversity and deep neural networks.

Communications engineering·2024

Same author

Multi-parameter distributed fiber optic sensing using double-Brillouin peak fiber in Brillouin optical time domain analysis.

Optics express·2023

Same author

Pilot-scale testing of natural gas pipeline monitoring based on phase-OTDR and enhanced scatter optical fiber cable.

Scientific reports·2023

Same author

Robust Vector BOTDA Signal Processing with Probabilistic Machine Learning.

Sensors (Basel, Switzerland)·2023

Search research articles

Related Experiment Video

Updated: Jul 6, 2026

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Published on: September 26, 2017

An Impedance-Loaded Surface Acoustic Wave Corrosion Sensor for Infrastructure Monitoring.

Jagannath Devkota^1,2,3, David W Greve^1,4, Nathan Diemler^1,2

¹National Energy Technology Laboratory, 626 Cochran Mill Road, Pittsburgh, PA 15236, USA.

Sensors (Basel, Switzerland)

|February 10, 2024

Summary

This study introduces impedance-loaded reflective delay line (IL-RDL) surface acoustic wave (SAW) devices for wireless corrosion monitoring in oil and gas pipelines. Experiments demonstrated real-time detection of iron corrosion under simulated pipeline conditions.

Keywords:

corrosion delay line pipeline sensor surface acoustic wave

More Related Videos

In Situ Soil Moisture Sensors in Undisturbed Soils

In Situ Soil Moisture Sensors in Undisturbed Soils

Published on: November 18, 2022

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Related Experiment Videos

Last Updated: Jul 6, 2026

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Published on: September 26, 2017

In Situ Soil Moisture Sensors in Undisturbed Soils

In Situ Soil Moisture Sensors in Undisturbed Soils

Published on: November 18, 2022

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Area of Science:

Materials Science
Sensor Technology
Corrosion Engineering

Background:

Surface acoustic wave (SAW) devices offer potential for wireless corrosion monitoring in infrastructure.
Challenges include acoustic loss and limited read range for large systems like oil and gas pipelines.
Existing methods struggle with real-time, remote monitoring in harsh industrial environments.

Purpose of the Study:

To investigate impedance-loaded reflective delay line (IL-RDL) SAW devices for metal corrosion monitoring.
To evaluate the impact of reflector resistivity changes on SAW device performance.
To demonstrate real-time and remote corrosion detection in oil and gas pipeline-relevant conditions.

Main Methods:

Simulated the effect of reflector resistivity on the backscattered signal of IL-RDL SAW devices.
Experimentally monitored iron (Fe) film corrosion in pressurized, humid CO2 conditions.
Demonstrated remote corrosion monitoring within a 70m carbon steel pipe using guided waves.

Main Results:

IL-RDL SAW devices show promise for detecting changes in metal resistivity due to corrosion.
Successful real-time monitoring of Fe film corrosion under simulated pipeline conditions was achieved.
Remote sensing of corrosion in a long carbon steel pipe was demonstrated using guided wave propagation.

Conclusions:

IL-RDL SAW devices are a viable technology for wireless, real-time corrosion monitoring in challenging environments.
The study provides insights into optimizing reflector properties for enhanced sensing.
Further improvements in sensing response for IL-RDLs are suggested for broader applications.