HTM71 Governors Apparatus

HTM71 Governors Apparatus

Compact, bench top apparatus to demonstrate the principle of operation of various centrifugal force governors. A motor driven vertical shaft has a chuck mounting which allows the easy attachment of the three governor mechanisms supplied. The shaft is speed controlled and the speed displayed on the front panel.
Three governors are supplied: Porter, Proell and Hartnell. Each governor is fully assembled, ready for testing. The Porter and Proell governors incorporate governor masses that can be removed to vary the rotating mass. Sleeve weights can also be added to these two governors using the slotted weights provided. The slotted weights are profiled not to come off during testing. The Hartnell governor incorporates a compression spring. This controls the movement of the central sleeve, by adjusting the spring tension using the adjustment knob on the vertical shaft. The vertical stroke of each governor can be measured using the increments on each of the governor shafts.
A transparent safety cover keeps rotating parts away from the students. A cut-off micro switch ensures the power to the motor is removed if the safety cover is not present. A full technical instruction manual is supplied, which details full unit operation, experimental technique, example results and relevant theory.

HTM71 Governors Apparatus
  • To be bench top unit to study various governors and determine their characteristic and adjustment curves
  • 3 different governors: Porter, Proell, Hartnell
  • Governor mass adjusted by weights
  • To have motor driven axis with speed control and digital display
  • To have quick and easy fitting and removal of governors
  • Rotating parts to be completely covered by a transparent safety cover
  • Micro switch operated power cut-off
  • Comprehensive instruction manual
  • Rotational motion of a body
  • Centrifugal force systems
  • Geometry and operation of a Porter, Proell and Hartnell governor
  • Characteristic curves for each governor
  • To observe the lift off speed of the three different types of governor
  • To observe the affect of varying sleeve weight or spring force on the operation of a governor
  • To observe the stability of a governor
  • To compare actual results with calculated theoretical values