Technical data

Magnetostriction with the Michelson interferometerelson interferometer

Article no: P2430811

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Principle

With the aid of two mirrors in a Michelson arrangement, light is brought to interference. Due to the magnetostrictive effect, one of the mirrors is shifted by variation in the magnetic field applied to a sample and the change in the interference pattern is observed.

Benefits

See that magnetic fields can change the geometry of objects
Use a Michelson interferometer to measure quantitatively this most subtile effect
Set up the instrument by yourself from separate components

Tasks

Construction of a Michelson interferometer using separate optical components.
Testing various ferromagnetic materials (iron and nickel) as well as a non-ferromagnetic material (copper), with regard to their magnetostrictive properties.

Learning objectives

Interference
Wavelength
Diffraction index
Speed of light
Phase
Virtual light source
Ferromagnetic material
Weiss molecular magnetic fields
Spin-orbit coupling

Scope of delivery

Optical breadboard, optimized Damping	08751-00	1
YAG Laser green, 1 mW, 532 nm for component holder	08767-99	1
Adjusting support 35 x 35 mm	08711-04	3
Surface mirror 30 x 30 mm	08711-01	4
Accesory set for optical base plate	08750-50	1
Beam splitter 1/1, non polarizing	08741-00	1
Component holder	08043-00	2
Screen, white, 150x150 mm	09826-00	1
Faraday modulator for optical base plate beam height 15 cm	08733-02	1
Rods for magnetostriction,set	08733-01	1
PHYWE Power supply, universal, analog display DC: 18 V, 5 A / AC: 15 V, 5 A	13503-93	1
PHYWE Digital multimeter, 600V AC/DC, 10A AC/DC, 20 MΩ, 200 µF, 20 kHz, −20°C…760°C	07122-00	1
Connecting cable, 32 A, blue, various lengths	07361-04	1
Magnetic foot for optical base plate	08710-00	1
Ring for component holder	08044-00	2