Advanced Spectrometer, Turntable - w/ Prism Holder & Grating Holder - Eisco Labs

Description

Advanced Spectrometer, Turntable - w/ Prism Holder & Grating Holder - Eisco Labs
Spectrometer is an optical instrument, which can be used to determine the wavelength of light as well as the index of refraction of solids and liquids. The instrument is supplied with one prism holder, one grading holder, dust cover and includes a wooden storage case. The spectrometer consists in principle of a solid base with a turntable, a prism table, a collimator and a telescope.
The turntable is the major part of the instrument. It is mounted with a robust axle, and it can be rotated around a vertical axis. It is provided with a circular scale marked from 0 to 360 degrees at 0.5 degree intervals. There is a vertical axle in the center of the turntable which can rotate independently of the table. This axle extends beyond the top of the table and is terminated in a fitting to which the prism table can be mounted. In addition the vertical axle is provided with a pair of nonius scale which are concentric to the circular scale. The turntable is supplied with a dust cover with two windows for reading the two nonius scales which permit a reading accuracy of 30 sec.
The prism table consists of two metal discs, which are held together with three spring loaded adjustment screws placed at the apexes of an equilateral triangle. A prism holder or a grating support can be mounted on the uppermost disc. The table is provided with an engraved marking at the center to assist in the correct placement of the prism. The axle, which is to be mounted in the fitting on the vertical axle, is attached to the lowermost disc. The prism table can be locked in relation to the two nonius scales by means of the long adjustment screw mounted in the fitting. The vertical axis supporting the nonius scales and the turntable can be locked by means of the adjustment screw, which is placed on the spectrometer support. When the prism table and the nonius scales are locked, they can be rotated slowly using the fine adjustment knob on the side of the spectrometer support.
The collimator consists of two concentric metal tubes with an adjustable vertical slit at one end, and a convex lens at the other. The collimator is attached to a support which is fixed to the supporting structure of the instrument. The collimator can be adjusted around a horizontal axis, and the distance between the slit and the lens can be adjusted with the focusing knob.
The telescope, which is attached to the arm of the prism table is an astronomical telescope with a cross-hair sighting device and a Ramsden eyepiece positioned at one end of two concentric tubes. There is a convex lens at one end. The telescope can be tipped up and down around a horizontal axis, and it can be locked in place.
The spectrometer measures approximately 9" tall and 14" wide when turntable is in position as photographed.
Product Details
Brand
EISCO
Manufacturer
EISCO
Product Type
Science Lab Education Curriculum Support
Mpn
PH0620
Advanced Spectrometer with prism and grating holder. This optical instrument can be used to determine the wavelength of light as well as the index of refraction of solids and liquids.
The turntable is a major part of this optical instrument. It is mounted with a robust axle, and it can be rotated around a vertical axis
Features a circular scale marked from 0 to 360 degrees at 0.5 degree intervals.
The collimator consists of two concentric metal tubes with adjustable vertical slit at one end, and a convex lens at the other. The astronomical telescope is attached to the arm of the prism table and has a cross-hair sighting device and a Ramsden eyepiece positioned at one end of two concentric tubes.
Includes a sturdy wooden storage case
Check out my other items.
-
Powered by