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When a mass moves relative to the reference system within a rotating reference system, this movement is deflected. This deflection is caused by the Coriolis force, an apparent or inertial force. The Coriolis force plays a crucial role in meteorology and physical oceanography, since it influences the course of air and water currents due to the Earth's rotation.
In engineering, the Coriolis force occurs when a rotational motion interferes with a further movement of the same object. This can occur for example in cranes, gearboxes or robots.
The TM 605 experimental unit is designed to clearly demonstrate the effect of the Coriolis force in a rotating reference system. A transparent water tank with submersible pump is placed on a rotatable arm and then rotated. Within the rotating reference system, the pump produces a water jet in a radial direction. Depending on the flow rate of the pump or the water velocity, as well as speed and direction of rotation, the water jet is visibly deflected due to the Coriolis force. The degree of deflection can be determined by means of a scale on the water tank. The speed is infinitely adjustable, electronically controlled and digitally displayed.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
Learning Objectives / Experiments
- inertial or apparent force
- interference of a rotational movement on a translational movement
- visualisation of the Coriolis force effect
 visualisation of the Coriolis force effect
 rotating reference frame consisting of transparent water tank with submersible pump on a rotating arm
 deflection of a water jet in radial direction dependent on the speed and direction of rotation
 scale to read the deflection of the water jet
 closed water circuit
 speed sensor with digital display
- infinitely adjustable speed: 0...60min-1
- adjustable direction of rotation
- flow rate 10L/min
Dimensions and Weight
Weight: approx. 25kg Required for Operation 230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Scope of Delivery
1 experimental unit
1 set of tools
1 set of instructional material