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

Encoding01:19

Encoding

873
Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
873
Density00:56

Density

20.0K
Density is an important characteristic of substances, crucial in determining whether an object sinks or floats in a fluid. Its SI unit is kg/m3, and its cgs unit is g/cm3. The density of an object helps in identifying its composition, and also reveals information about the phase of the matter and its substructure. The densities of liquids and solids are roughly comparable, consistent with the fact that their atoms are in close contact. However, gases have much lower densities than liquids and...
20.0K
Current Density01:21

Current Density

5.2K
The total amount of current flowing through one unit value of a cross-sectional area is referred to as current density. If the current flow is uniform, the amount of current flowing through a conductor is the same at all points along the conductor, even if the conductor area varies. The current density consists of the local magnitude and direction of the charge flow, which varies from point to point. Current density is measured in amperes per meter square, and direction is defined as the net...
5.2K
Strain-Energy Density01:20

Strain-Energy Density

938
Understanding the strain energy density in materials under axial load is crucial for evaluating their mechanical behavior and durability. When a rod is subjected to such a load, it elongates and stores energy, known as strain energy, as potential energy within the material. This energy is measured in terms of energy per unit volume.
In the elastic region of a material, the relationship between the stress and the strain is linear and follows Hooke's Law. The strain energy density in this region...
938
Bulk Density of Aggregate01:22

Bulk Density of Aggregate

1.2K
Bulk density refers to the mass of aggregate particles that would fill a unit volume. The concept of bulk density originates from the inability to pack aggregate particles in a manner that completely eliminates void spaces. Hence, the term bulk refers to the volume that encompasses both the aggregates and the voids. This measurement is crucial when aggregates are batched by volume and is used to convert quantities by mass to volume.
Most natural mineral aggregates, like sand and gravel,...
1.2K
Density and Archimedes' Principle01:05

Density and Archimedes' Principle

8.9K
When a lump of clay is dropped into water, it sinks. But if the same lump of clay is molded into the shape of a boat, it starts to float. Because of its shape, the clay boat displaces more water than the lump and experiences a greater buoyant force, even though its mass is the same. The same holds true for steel ships. The average density of an object majorly determines if the object will float. If an object's average density is less than that of the surrounding fluid, it will float. The...
8.9K

You might also read

Related Articles

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

Sort by
Same author

miR5810-OsMRLP6 module regulates rice salt tolerance by affecting ROS accumulation and K<sup>+</sup>/Na<sup>+</sup> homeostasis.

Plant science : an international journal of experimental plant biology·2026
Same author

Tumor-microenvironment-modulating microspheres to augment tumor-infiltrating lymphocyte therapy against solid tumors.

Cell reports. Medicine·2026
Same author

Doppler-enhanced displacement measurement method based on scanning reference gratings.

Optics express·2026
Same author

Nrf2 modulates the IRF7-SLC31A1 axis to suppress neuronal cuproptosis after traumatic brain injury.

Experimental neurology·2026
Same author

Current evidence and strategies for bridging therapy in CD19-directed chimeric antigen receptor T-cell therapy for relapsed/refractory large B-cell lymphomas.

Annals of hematology·2026
Same author

Tribbles pseudokinases in cardiovascular diseases: Molecular mechanisms, genetic insights, and therapeutic prospects.

Pharmacological research·2026
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

Related Experiment Video

Updated: Feb 11, 2026

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

8.7K

Eightfold optical encoder with high-density grating.

Jili Deng, Xiaona Yan, Chunlong Wei

    Applied Optics
    |May 2, 2018
    PubMed
    Summary
    This summary is machine-generated.

    A new grating interferometer uses eightfold optical subdivision for ultrahigh resolution measurements. This system achieves 68.6 picometer resolution, outperforming traditional methods.

    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
    Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
    06:00

    Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test

    Published on: September 17, 2021

    3.1K

    Related Experiment Videos

    Last Updated: Feb 11, 2026

    Writing Bragg Gratings in Multicore Fibers
    08:48

    Writing Bragg Gratings in Multicore Fibers

    Published on: April 20, 2016

    8.7K
    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
    Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
    06:00

    Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test

    Published on: September 17, 2021

    3.1K

    Area of Science:

    • Optics and Photonics
    • Metrology and Measurement Science

    Background:

    • Traditional linear optical encoders have limitations in resolution.
    • Achieving ultrahigh resolution in displacement measurement is crucial for advanced scientific and industrial applications.

    Purpose of the Study:

    • To propose and verify a novel grating interferometer configuration for ultrahigh resolution displacement measurement.
    • To enhance optical subdivision capabilities beyond traditional linear optical encoders.

    Main Methods:

    • A novel grating interferometer configuration with eightfold optical subdivision was designed.
    • A high linear density grating (1780 lines/mm) was combined with the subdivision system.
    • A symmetrical measurement configuration was adopted to minimize environmental errors.

    Main Results:

    • An ultrahigh resolution of 68.6 picometers (pm) was achieved.
    • The system demonstrated enhanced optical subdivision, four times greater than traditional methods.
    • Verification experiments showed excellent agreement with a commercial interferometer for various displacement measurements and stability tests.

    Conclusions:

    • The proposed grating interferometer configuration effectively achieves ultrahigh resolution.
    • The symmetrical design enhances measurement accuracy by reducing environmental error.
    • The system's performance is validated through comprehensive experimental comparisons.