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 Video

Updated: Jun 17, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
10:33

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

Published on: February 27, 2019

An intensity regulation system for a monochromator.

D A Wayne, N G Dillman

    Applied Optics
    |January 15, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    IR Spectrometers01:25

    IR Spectrometers

    There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
    Intensity Of Electromagnetic Waves01:22

    Intensity Of Electromagnetic Waves

    The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:

    You might also read

    Related Articles

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

    Sort by
    Same author

    Acute lumbosacral epidural abscess after percutaneous transluminal angioplasty.

    The American journal of medicine·1989
    Same author

    Post-surgical ischaemic myelopathy.

    Paraplegia·1987
    See all related articles

    This study presents an affordable system using a grating monochromator and feedback electronics to maintain stable light output intensity across varying wavelengths. The system ensures consistent light intensity, crucial for accurate spectroscopic measurements.

    Area of Science:

    • Optical Engineering
    • Spectroscopy Instrumentation

    Background:

    • Maintaining constant light output intensity from monochromators is challenging due to inherent system nonlinearities.
    • Accurate and stable light sources are essential for reliable spectroscopic analysis and measurements.

    Purpose of the Study:

    • To develop and describe an inexpensive system for regulating the output intensity of a grating monochromator.
    • To achieve consistent light output across a range of wavelengths for improved experimental accuracy.

    Main Methods:

    • Utilized a commercial grating monochromator integrated with external feedback electronics.
    • Employed a photosensor with a known spectral response to sample output intensity.
    • Implemented electronic comparison of the photosensor signal with a preprogrammed function generator to correct for nonlinearities.

    More Related Videos

    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
    07:55

    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

    Published on: September 22, 2017

    X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells
    10:16

    X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells

    Published on: August 20, 2019

    Related Experiment Videos

    Last Updated: Jun 17, 2026

    An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
    10:33

    An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

    Published on: February 27, 2019

    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
    07:55

    High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

    Published on: September 22, 2017

    X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells
    10:16

    X-ray Beam Induced Current Measurements for Multi-Modal X-ray Microscopy of Solar Cells

    Published on: August 20, 2019

    Main Results:

    • The developed system effectively regulates monochromator output intensity.
    • Observed output intensity remained constant within 5% across the wavelength range of 4750 Å to 12000 Å.
    • The system demonstrated stability using two different gratings.

    Conclusions:

    • The described system provides a cost-effective solution for stable light source generation in spectroscopic applications.
    • The feedback control mechanism successfully compensates for system nonlinearities, ensuring reliable performance.
    • This approach enhances the precision and reproducibility of measurements requiring consistent light intensity.