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SPECTROMETER EDUCATIONAL SMU-1 buy in Moscow
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SPECTROMETER EDUCATIONAL SMU-1

SPECTROMETER EDUCATIONAL SMU-1

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3 RUB
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7 years on Allbiz
Technical characteristics
  • Country of manufactureRussia
Description

ASSIGNMENT

The spectrometer educational SMU-1 is intended for research of a range, determination of lengths of light waves, spectrum lines of vapors of metals and gases,

and also for supervision of a continuous range at change of temperature of heat of the shining bodies.

TECHNICAL DATA

1 Focal distance of a lens of a collimator and visual tube

~ 105 mm.

2 Focal distance of an eyepiece

~ 32

3 Resolving power of a visual tube in a midfield no more

30´´

4 Slot width

0 – 0,1 mm.

5 Spectral range of work

4000-7500Å

6 Product dimensions in a box no more

7 The mass of a product in a box no more

1,5

DELIVERY SET

1 Spectrometer educational SMU-1

1 pieces.

2 Operation manual

1 pieces.

DEVICE AND PRINCIPLE OF WORK

Schematic optical circuit of a spectrometer

The spectrometer of prismatic type consists of the following main nodes (see fig. 1): the collimator A with the slot-hole device, prisms of B and a visual tube In with O3 eyepiece.

In the focal plane of the lens O1 there is a narrow slot which length of a drawing perpendicular plane. The slot is lit with the studied beams.

The parallel beams leaving a lens pass through a prism B. Beams of different flowers leave a prism under different corners owing to distinction of lengths of waves: red deviate on a smaller corner, violet have the greatest deviation. All beams of other flowers pass in an interval

between extreme flowers As all beams with identical lengths of waves leave a prism parallel among themselves, their lens O2sobirayet in one point of the focal S' plane. In this plane beams of one color give the image of a narrow slot S: the locus of all images given by the different beams which are a part of the studied bunch is called prismatic

range of this radiation. As the image of a range S´ is not enough, to increase it is applied O3 eyepiece operating as a normal magnifying glass.

Device and work of a product.

The spectrometer consists of the following main parts: racks, little table, motionless bracket, mobile bracket, collimator tube, prism, visual tube, screw micrometer and cap

It serves resistant 1 for installation of a spectroscope on a support.

The little table 2 connects to a rack by means of a thread. On a little table are strengthened: a collimator tube, a mobile bracket, a prism with a frame and a screw micrometer.

The mobile bracket serves for fastening on it a visual tube. The bracket is under the influence of a screw micrometer, on the one hand

and springs – with another.

The collimator tube is intended for the direction on a prism of parallel ray bundle from a narrow slot. The slot is set in the focal plane of an additional lens parallel to the refracting prism edge.

The prism serves for decomposition of light. Rays of light from the collimator fall on a front edge of a prism in which decay and leave parallel bunches of different flowers and the directions depending on wavelength.

The prism is pasted in a frame which, in turn, movably connects to a little table and is stopped by two screws. The visual tube serves for examining of a range and consists of the one-lens lens turned to a prism, and a mobile one-lens eyepiece. In the focal plane

eyepiece there is a metallic thread located vertically. Metallic thread

it is intended for fixing of spectrum lines.

The screw micrometer serves for definition of relative provision of bands in a range. The micrometer consists of the screw with a step of 1 mm and a barabanchik,

on which the scale with divisions is put. The cap is put on a prism and the objective ends of collimator

and visual tubes it is also necessary for protection from hit in a spectrometer of foreign, so-called parasitic beams.

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