Precise, solidly constructed instrument for advanced studies. Easily interchangeable Michelson and Fabry-Pérot configurations. Precision geared mirror drive for 0.0001mm resolution. The Michelson/Fabry-Pérot Interferometer base consists of a substantial casting that supports a machined and ground lathe bed at a convenient height for observation. The lathe bed has a precise 1mm pitch geared lead screw to adjust the movable mirror carriage. The large coarse adjustment knob sets the mirror position to within 0.01mm, read on a 205mm divided steel scale and a numbered dial for fractions of a millimeter. A further graduated fine adjustment knob reads to 0.0001mm, and is an excellent control for precise displacements and ring counting. The interferometer optics fixed parts are mounted on vertical steel plates Additional Info: Easily interchangeable michelson and fabry-pérot configurations. Precision geared mirror drive for 0.0001mm resolution. Includes detailed activity guide. Package Size(L x W x H): 26 X 16 X 14 (IN) Categories: Advanced Physics, Demonstrations HTS Code: 9013.80.2000 UNSPSC: 4.11153e+007 Country Of Origin: CHINA