Kymograph : Kymo means wave: Graphin means write. Kymograph is thus the name given to any instrument which records movement on moving surface. The degree of movement can be analyzed from the height of the wave and its relation to time is measured by horizontal distance. It consists of following parts:
a) Electric Motor: It runs on 220 volts AC
1. It is connected to the motor vertically and can be rotated at different speeds.