Mayalab Instrument

A Travelling microscope is a compound microscope that is fitted on a vertical scale. It carries a vernier scale along the main scale and can be moved upward or downward. The base is fitting with two levelling  screws Horizontal scale is 20cms and vertical 15cms.  Long. Both the horizontal scale and vertical carriages  are provided with slow motions, which travels app. slide 3cms in one traverse. Microscope tube is provided  with rack & pinion. 
MAYALAB travelling microscope is a precision instrument used in laboratories for accurate measurement of small distances, thicknesses, diameters, and refractive indices. It consists of a microscope mounted on a sliding carriage that can move along a horizontal scale or vertical scale, depending on the type of measurement.
Main Parts:

Base – A heavy, rigid platform that provides stability to the instrument.

Horizontal & Vertical Scales (with Vernier) – Graduated scales with vernier attachments for precise readings.

Microscope Tube – Contains an eyepiece and objective lens for magnified viewing.

Focusing Mechanism – For clear image adjustment.

Sliding Carriage – Allows smooth horizontal or vertical movement of the microscope along the rails.

Clamp & Fine Adjustment Screw – For locking position and making fine movements.

Leveling Screws – Used to make the base perfectly horizontal during setup.

Working Principle:
The microscope is aligned with the object under observation, and readings are taken from the vernier scale attached to the main scale. The difference between initial and final readings gives the displacement or dimension being measured.
Uses:
 

Measuring small lengths with high accuracy (up to 0.001 cm).

Determining refractive index using experiments like Newton’s rings or liquid lens method.

Measuring the diameter of capillary tubes.

Studying crystal structures in physics experiments.