Description

SPECTROMETER

SPECTROMETER:

Specifications:

• This is a robust instrument designed specifically for student use, which nevertheless is capable of very high performance.
• The main structure is of heavy cast metal, with bright plated fittings.
• The complete instrument is supplied with wooden case.
• Scale: The 150 mm diameter circle with protective plastic shield is fixed to the telescope movement and the table is attached to the double ended vernier, which reads to 1 minute of arc.
• Both telescope and table rotation fine adjustment screws, and release of a clamping screw enables adjustment of both movements to be made by hand.
• Collimator: Mounted on fixed and fitted with 178 mm focus achromatic objectives, 25 mm clear aperture.
• Also fitted is a unilaterally adjustable slit 7 mm long.
• Telescope: Mounted on movable pillar and fitted with 178 mm Focus achromatic objective, 25 mm clear aperture.
• Also fitted is a 8× Ramsden eyepiece and a glass cross line graticule.
• Both the telescope and collimator have rack and pinion focusing.
• Means are provided for leveling the axis of both optical units and for squaring them to axis of rotation.
• Prism Table: The table is marked with lines to assist placing the prism with respect to the table leveling screws.
• Standard Accessories Supplied: 1 Prism clamp, 1 diffraction grating holder, 1 magnifier, 1 tommy bar for adjusting optical axis, 1 wooden case.

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