School of Physics Lecture Demonstration Manual

Mf-3 Watts governor

Published: Thursday 07 June 2007 - Updated: Thursday 07 June 2007

Aim

To demonstrate the principles behind the Watts governor.

Apparatus

Model Watts Governor

Diagrams

Click on pictures to enlarge.

Model Governor Pic

Videos

Watts Governor Video

Description

The Watts centrifugal governor consists of two heavy balls connected via pinions to a rotating axle. On turning the handle the balls are flung out due to centrifugal forces. The balls are attached via linkage arms and a spring to a collar on the rotating axle. This collar may be connected via some mechanism to the input of the motor or engine controlling the rotation of the axle. The Watts governor is a classic feedback control mechanism. The movie above illustrates the use of a watts type governor attached to the motor control gear for the lifts in the Redmond Barry building at the University of Melbourne.

Safety notes

Maintenance

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