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1002977 Dilatometer/linear expansion apparatus
Instruction sheet
3/03 A LF
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The dilatometer is for the proof and quantitative de-
termination of linear expansion of solid materials as a
function of material, length and temperature.
1. Safety instructions
Caution. The experimental procedure results in hot
steam.
Do not touch heated tubes with your fingers. Use cloths
when replacing tubes.
Do not subject the glass tube to mechanical stresses.
2. Description, technical data
The dilatometer consists of a base strip with fixed mount,
guide mount, pointer and projectable scale. Also included
Figure 1
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Fixed mount with screw for securing tube and securing screw
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Screw for stand (see Fig. 2)
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Base strip
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Spring clip for securing hose
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Guide mount with gears for pointer
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Testing tubes
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Pointer
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Scale
are three testing tubes made of steel, brass and glass.
Suitable for projection using a daylight projector (see
Fig. 2).
Dimensions:
Scale dimensions:
Scale:
Measuring range:
Accuracy:
Length of tube:
Weight:
3. Principle
To determine the linear expansion coefficient
various materials, it is necessary to measure the ex -
730 mm x 50 mm x 200 mm
140 mm x 200 mm
140 mm x 200 mm
1 mm
0.05 mm
650 mm approx.
2 kg approx.
α
for
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