HO-SP-RE-02 Spectrometer - Goniometer 2

Regular price $2,999.00

Spectrometer - Goniometer 2

Holmarc’s Spectrometer Goniometer is designed as a versatile instrument suitable for precise determination of the optical parameters of prisms and gratings. It can also be used as a spectroscope, for qualitative examination and measurement of emission and absorption spectra. Holmarc’s well designed mechanics of the Goniometer allows maintenance-free operation over many years.

This system consists of a mercury lamp with power supply, prism with holder and transmission grating with holder. The collimator and the telescope have a focal length of 202 mm and a diameter of 32 mm. The collimator tube has an adjustable slit.

Experiment

  •     Determine the refractive index of a glass prism
  •     Demonstrate the relationship between refractive index and wavelength (dispersion curve)
  •     Calculate the resolving power of the glass prism from the slope of the dispersion curves
  •     Determine the wavelengths of the mercury spectral lines
  •     Determine the grating constant of a diffraction grating based on the diffraction angle of the high intensity spectral lines of mercury
  •     Determine the angular dispersion of a grating
  •     Calculate the resolving power required to separate the different Hg-Lines

Specifications:

    Spectrometer - Goniometer
    Angular scale     0° to 360° with 0.5° divisions
    Resolution     30 arc second
    Focal length collimator     202 mm
    Focal length Telescope     202 mm
    Observation Tube     Infinity Variable
    Ocular     Crosshair
    Slit Tube     Symmetric Precession Slit
    Variable slit     Micrometer variable 0 - 3mm
    Eye piece Magnification     10 x
    Construction Material     Aluminum
    Finish     Black Anodized
    Prism
    Material     NSF 1 (60°), BK7 1 each
    Transmission Grating
    Size (mm)     38 x 50 mm
    Lines / mm     500 and 1000 lines / mm

Features:

  Prism table attached with vernier table
    30 arc second resolution
    Covered Goniometer scale
    Classic design spectrometer Goniometer
    High-quality optics
    Symmetrical precision slit