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

Position and Displacement

Position and Displacement

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...

Position and Displacement

Position and Displacement

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...

Distance Problem

Distance Problem

When an object's velocity changes over time, the total distance traveled can be determined by summing small displacement intervals over short increments. This approach approximates the true distance through numerical summation and the use of integral calculus. An estimate of the total displacement can be obtained by measuring velocity at regular intervals and multiplying each value by the corresponding time step.If a runner accelerates over the first three seconds of a race, speed measurements...

Design Example: Measuring Distance Between Two Points with Obstructions

Design Example: Measuring Distance Between Two Points with Obstructions

When measuring distances in areas with physical obstructions, such as a lake in a field, surveyors must employ techniques to calculate accurate lengths without direct line measurements. One effective method is the offset technique, which allows for precise distance estimation over inaccessible stretches.In this scenario, a surveyor must measure a side of an area that crosses a lake. Since the measuring tape cannot span the lake, the surveyor begins by establishing a baseline that aligns with...

Position and Displacement Vectors

Position and Displacement Vectors

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...

Position and Displacement Vectors

Position and Displacement Vectors

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...

You might also read

Related Articles

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

Sort by

Same author

Diffractographic dimensional measurement. Part 2: profile measurement.

Applied optics·2010

Same author

Diffractographic dynamometer.

Applied optics·2010

Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026

Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026

Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026

Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026

Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026

Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 16, 2026

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

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

Published on: September 30, 2019

Diffractographic dimensional measurement. Part 1: displacement measurement.

T R Pryor, O L Hageniers, W P North

|January 30, 2010

Summary

This summary is machine-generated.

This study introduces a diffractographic technique for precise, noncontact displacement and profile measurement using far-field diffraction patterns. The method is accurate, linear, and versatile, enabling applications like simultaneous deflection and vibration analysis.

More Related Videos

Measuring the Complete-arch Distortion of an Optical Dental Impression

Measuring the Complete-arch Distortion of an Optical Dental Impression

Published on: May 30, 2019

Related Experiment Videos

Last Updated: Jun 16, 2026

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

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

Published on: September 30, 2019

Measuring the Complete-arch Distortion of an Optical Dental Impression

Measuring the Complete-arch Distortion of an Optical Dental Impression

Published on: May 30, 2019

Area of Science:

Optics and Measurement Science
Diffraction Physics
Metrology

Background:

Accurate noncontact measurement is crucial in engineering and manufacturing.
Existing techniques may have limitations in range, linearity, or ease of use.
Diffraction-based methods offer potential for advanced metrology.

Purpose of the Study:

To present a novel diffractographic technique for displacement and profile measurement.
To detail the measurement principles based on far-field diffraction patterns.
To explore unique applications of this technique.

Main Methods:

Utilizing changes in far-field diffraction patterns from a slit aperture.
Forming the aperture between a test and a reference object.
Analyzing diffraction patterns for displacement and profile information.

Main Results:

The method provides highly accurate displacement measurements over a significant range.
The technique is noncontacting, linear, and user-friendly.
Demonstrated applications include simultaneous line deflection, relative edge-to-surface deflection, and vibration amplitude measurement.

Conclusions:

The diffractographic technique is a powerful tool for precise metrology.
Its versatility allows for diverse and complex measurement tasks.
This method offers a robust alternative for displacement, profile, and vibration analysis.