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

Calibration Curves: Linear Least Squares01:20

Calibration Curves: Linear Least Squares

4.0K
A calibration curve is a plot of the instrument's response against a series of known concentrations of a substance. This curve is used to set the instrument response levels, using the substance and its concentrations as standards. Alternatively, or additionally, an equation is fitted to the calibration curve plot and subsequently used to calculate the unknown concentrations of other samples reliably.
For data that follow a straight line, the standard method for fitting is the linear...
4.0K
Instrument Calibration01:12

Instrument Calibration

611
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
611
Glassware Calibration01:11

Glassware Calibration

1.2K
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
1.2K
Calibration Curves: Correlation Coefficient01:10

Calibration Curves: Correlation Coefficient

4.4K
In a linear calibration curve, there is a value called the calibration coefficient, denoted by 'r,' which measures the strength and the direction of association between two variables. The correlation coefficient value ranges from −1 to +1. A value of +1 indicates a perfect positive linear correlation, −1 denotes a perfect negative correlation, and 0 implies no correlation between the two variables. A positive correlation value establishes that as one variable increases, the...
4.4K

You might also read

Related Articles

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

Sort by
Same author

Highly Sensitive Light-Induced Thermoelastic Spectroscopy Based on a Dual-Enhanced Quartz Crystal Tuning Fork via Gold Nanorods' LSPR Effect and High Thermal Conductivity.

Analytical chemistry·2026
Same author

Optical fibre gripper for high-performance 3D micromanipulation.

Nature·2026
Same author

Investigation of the tuning mechanism in a pump-induced tunable Lyot filter and its applications.

Optics express·2026
Same author

Theoretical analysis of acoustic sensitivity of mandrel fiber optic hydrophone with fiber optic layer.

Optics express·2026
Same author

Accurate diagnosis of triple-negative breast cancer enables temperature-compensation all optical microfibre gratings system.

Biosensors & bioelectronics·2026
Same author

The association of birth weight with children's anxiety, depression and developmental disabilities.

Early human development·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: Dec 25, 2025

Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration
07:03

Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration

Published on: February 23, 2017

8.0K

Model calibration by multi-null constraint for an optical freeform surface adaptive interferometer.

Lei Zhang, Sheng Zhou, Jingsong Li

    Applied Optics
    |April 1, 2020
    PubMed
    Summary
    This summary is machine-generated.

    Model calibration for adaptive freeform surface interferometers is improved using the multi-null constraint (MNC) method. This technique enhances accuracy by addressing error coupling in null configuration modeling for better surface testing.

    More Related Videos

    Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads
    07:58

    Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads

    Published on: July 25, 2025

    663
    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

    10.2K

    Related Experiment Videos

    Last Updated: Dec 25, 2025

    Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration
    07:03

    Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration

    Published on: February 23, 2017

    8.0K
    Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads
    07:58

    Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads

    Published on: July 25, 2025

    663
    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

    10.2K

    Area of Science:

    • Optical metrology
    • Interferometry
    • Surface metrology

    Background:

    • Adaptive freeform surface interferometers (AFI) present challenges in model calibration due to non-unique null configurations.
    • Error coupling in null configuration modeling can affect the accuracy of surface figure error extraction.

    Purpose of the Study:

    • To propose and validate a novel calibration method for adaptive freeform surface interferometers.
    • To address the issue of error coupling in null configuration modeling.
    • To improve the accuracy of surface figure error measurement.

    Main Methods:

    • Development of the multi-null constraint (MNC) calibration method.
    • Modeling of null configurations to account for error coupling.
    • Evaluation of the MNC method through simulations and experimental validation.

    Main Results:

    • The multi-null constraint (MNC) calibration method effectively addresses error coupling.
    • The MNC method allows for the extraction of both surface figure error and coupling parameters.
    • Simulations and experiments demonstrate higher accuracy after MNC calibration compared to traditional methods.

    Conclusions:

    • The MNC calibration method is a significant advancement for adaptive freeform surface interferometers.
    • This improved calibration is crucial for accurate system instrumentation and surface metrology.
    • The MNC method enhances the reliability and precision of optical metrology techniques.