Electromagnetic and magnetostrictive effect experimental apparatus

[Overview]

thisinstrumentDesigned based on the platform based Michelson interferometer, it is a novel precision interferometer instrument. The instrument not only draws on the design ideas of traditional interferometers, but also strives to meet the needs of physics experimental teaching in higher education institutions, making it more suitable for application in teaching and research fields. At the same time, this instrument expands the application of Michelson interferometers, which can measure the electrostriction characteristics of piezoelectric ceramic materials and study the magnetostriction coefficient of different materials. It is suitable for optical application experiments or innovative physics experiments.

【 Experimental Purpose 】】

1、Understand the basic principles of Michelson interferometer;

2Observe the equiangular interference fringes;

3Measure laser wavelength;

4、measurementpiezoelectricThe electrostrictive properties of ceramics；

5、Measure the magnetostrictive properties of different materials.

Main technical indicators of the product

1、integratedHe-NeLaser: power approximately1mW, wavelength632.8nm；

2Adjustable power supply0-750V/2mA, Resolution1VAccuracy0.5%；

3The division value of the micrometer handwheel for coarse movement of the moving mirror0.01mm, moving range25mm；

4The division value of the moving mirror micro motion micrometer handwheel0.0001mm, moving range0.25mm；

5、Beam splitter1only；

6The flatness of the moving mirror and reference mirror is λ/20, lens diameter φ35, including a two-dimensional adjustable mirror frame;

7、Frosted glass observation screen1only；

8、constant current source0～5AContinuously adjustable;