LEAT-5 Thermal Expansion Experiment

Short Description:

This apparatus employs a Michelson interferometer and an oven, adopts the electric heating method, the solid line is the thermal expansion coefficient of a precision measuring instrument, the various thermal expansion of solid and features to make quantitative detection; Using the linear expansion of metal sample to drive the plane mirror to move, the Michelson interference fringes are changed. According to the number of striations, the length change of the specimen is measured, and then the linear expansion coefficient is obtained. Compared with the method of steam heating and light lever, it has the advantages of small size, short sample, small power consumption and high accuracy.

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Product Detail

Product Tags

Experiments

1.Measurement of the coefficient of linear expansion of iron, copper and aluminum

2.Master the basic principle of measuring the thermal expansion coefficient of solid line

3.Learn to deal with experimental data and draw thermal expansion curves

Specifications

Description	Specifications
He-Ne Laser	1.0 mW@632.8 nm
Samples	Copper, aluminum, and steel
Sample Length	150 mm
Heating Range	18 °C ~ 60 °C, with temperature-control function
Temperature Measurement Accuracy	0.1 °C
Display Value Error	± 1%
Power Consumption	50 W
Error of Linear Expansion Coefficient	< 3%