Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Position and Displacement01:31

Position and Displacement

25.0K
The position of an object defines its location relative to a convenient frame of reference at any particular time. A frame of reference is an arbitrary set of axes from which the position and motion of an object are described. Earth is often used as a frame of reference, and we often describe the position of an object as it relates to stationary objects on Earth. For example, a rocket launch could be described in terms of the position of the rocket with respect to Earth as a whole. On the other...
25.0K
Displacement Current01:19

Displacement Current

3.8K
Ampère's law, in its usual form, does not work in places where the current changes with time and is not steady. Thus, Maxwell suggested including an additional contribution, called the displacement current, Id, to the real conduction current I.
3.8K
What is a Mode?01:07

What is a Mode?

25.1K
The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
25.1K
VSEPR Theory and the Basic Shapes02:52

VSEPR Theory and the Basic Shapes

84.2K
Overview of VSEPR Theory
84.2K
Position and Displacement Vectors01:00

Position and Displacement Vectors

12.7K
To describe the motion of an object, one should first be able to describe its position (where it is at any particular time). More precisely, the position needs to be specified relative to a convenient frame of reference. A frame of reference is an arbitrary set of axes from which the position and motion of an object are described. Earth is often used as a frame of reference to describe the position of an object in relation to stationary objects on Earth.
Further, several important kinds of...
12.7K
Significance of Displacement Current01:27

Significance of Displacement Current

5.8K
A displacement current is analogous to a real current in Ampère's law, participating in Ampère's law the same way as the usual conduction current. However, it is produced by a changing electric field. Displacement current is defined in terms of a time-varying electric field, and also has an associated displacement current density. By adding a term accounting for displacement current, Maxwell modified the existing Ampère's law, which is now called generalized Ampère's law.
5.8K

You might also read

Related Articles

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

Sort by
Same author

Pressure and temperature dual-parameter fiber sensing for intracranial pressure monitoring applications.

Optics express·2026
Same author

Generation of achromatic perfect vortex beams based on fiber end-integrated meta-structures.

Optics express·2025
Same author

Single-polarization single-mode hollow-core anti-resonant fiber with nested stadium-shaped tubes.

Optics express·2025
Same author

Surface plasmon resonance sensor based on a dual-hole optical fiber for temperature and refractive index detection.

Applied optics·2025
Same author

Engineering Safety-Oriented Blasting-Induced Seismic Wave Signal Processing: An EMD Endpoint Suppression Method Based on Multi-Scale Feature.

Sensors (Basel, Switzerland)·2025
Same author

FMCW laser ranging system based on equal-frequency resampling with direct injection current modulaton.

Optics express·2025

Related Experiment Video

Updated: Jan 23, 2026

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
08:32

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

14.4K

Displacement Sensor Based on a Small U-Shaped Single-Mode Fiber.

Chuanxin Teng1,2, Fangda Yu3, Shijie Deng4

  • 1Photonics Research Centre, Guilin University of Electronic Technology, Guilin 541004, China. tcx19850425@guet.edu.cn.

Sensors (Basel, Switzerland)
|June 6, 2019
PubMed
Summary
This summary is machine-generated.

A novel fiber optic displacement sensor uses a simple U-bend in a single-mode fiber. This easily fabricated sensor offers high sensitivity and mechanical strength for precise displacement sensing applications.

Keywords:
a small U-shapebent fiber interferometerdisplacement measurement

More Related Videos

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

6.7K
Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

12.4K

Related Experiment Videos

Last Updated: Jan 23, 2026

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
08:32

Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors

Published on: January 29, 2013

14.4K
A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

Published on: September 30, 2019

6.7K
Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

12.4K

Area of Science:

  • Optoelectronics
  • Fiber optic sensing
  • Interferometry

Background:

  • Traditional fiber optic sensors often involve complex fabrication processes like splicing, tapering, or heating.
  • These complex processes can compromise sensor mechanical strength and increase production costs.
  • There is a need for simpler, more robust, and cost-effective fiber optic displacement sensors.

Purpose of the Study:

  • To propose and demonstrate a simple, easily fabricated displacement sensor based on a bending-induced fiber interferometer.
  • To investigate the displacement sensing performance of the proposed sensor with varying bending radii.
  • To evaluate the sensor's sensitivity, linearity, and mechanical robustness.

Main Methods:

  • A fiber interferometer was constructed by simply bending a single-mode fiber into a U-shape, avoiding complex pre-processing.
  • The sensor's performance was tested using different bending radii (3.3 mm, 4.4 mm, 5.0 mm, and 6.3 mm).
  • Displacement sensing capabilities, including linearity and sensitivity, were experimentally evaluated.

Main Results:

  • The proposed sensor demonstrated a simple structure and ease of fabrication.
  • The sensor exhibited a good linear response across the tested bending radii.
  • High sensitivities were achieved: 134.3 pm/μm (3.3 mm), 105.1 pm/μm (4.4 mm), 120.9 pm/μm (5.0 mm), and 144.1 pm/μm (6.3 mm).

Conclusions:

  • The U-bend fiber interferometer offers a simplified and cost-effective approach to displacement sensing.
  • The sensor design enhances mechanical strength and reduces fabrication complexity.
  • This technology holds promise for various displacement sensing applications requiring high sensitivity and robustness.