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 Experiment Videos

Fiber-optic liquid-level sensor using a long-period grating.

S Khaliq, S W James, R P Tatam

    Optics Letters
    |December 1, 2007
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

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

    Sort by
    Same author

    Efficacy of Citrullus colocynthis seed extract on Earias vittella, Fabricius, (Lepidoptera: Noctuidae): environment sustainable approach.

    Brazilian journal of biology = Revista brasleira de biologia·2022
    Same author

    Comment on "Global distribution of earthworm diversity".

    Science (New York, N.Y.)·2021
    Same author

    Ratiometric pathlength calibration of integrating sphere-based absorption cells.

    Optics express·2020
    Same author

    Spectroscopic gas detection using a Bragg grating - stabilized external cavity laser, custom written in planar integrated silica-on-silicon.

    Optics express·2019
    Same author

    Transmission line method for the simulation of fiber Bragg gratings.

    Applied optics·2019
    Same author

    All-electronic frequency stabilization of a DFB laser diode.

    Optics express·2017
    Same journal

    Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

    Optics letters·2026
    Same journal

    E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

    Optics letters·2026
    Same journal

    Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

    Optics letters·2026
    Same journal

    Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

    Optics letters·2026
    Same journal

    Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

    Optics letters·2026
    Same journal

    Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

    Optics letters·2026
    See all related articles

    This study introduces a novel liquid-level sensor utilizing long-period fiber-optic gratings. The sensor demonstrates high sensitivity and a large linear range for accurate liquid level detection.

    Area of Science:

    • Fiber optics
    • Optical sensing
    • Biomedical engineering

    Background:

    • Liquid level sensing is crucial in various industrial and scientific applications.
    • Traditional methods can be limited by accuracy, cost, or environmental factors.
    • Fiber-optic sensors offer potential advantages in harsh environments and for remote monitoring.

    Purpose of the Study:

    • To propose and demonstrate a new liquid-level sensor.
    • To leverage the refractive-index sensitivity of long-period fiber-optic gratings (LPFGs).
    • To investigate the relationship between spectral changes and liquid level.

    Main Methods:

    • Fabrication of a long-period fiber-optic grating.
    • Characterization of the grating's transmission spectrum.

    Related Experiment Videos

  • Exposing a defined length of the LPFG to a liquid medium.
  • Correlating spectral shifts with the liquid level.

    • Main Results:

    • The sensor's performance is dependent on the liquid-surrounded fraction of the LPFG.
    • A large linear range was observed for the sensor.
    • Sensitivity of 4.8% change in transmission per millimeter was achieved.
    • The sensor was demonstrated using a 40 mm long grating with 400 μm periodicity.

    Conclusions:

    • The proposed LPFG-based sensor is effective for liquid-level measurement.
    • The sensor exhibits excellent sensitivity and a wide linear response.
    • This technology holds promise for precise liquid monitoring applications.