Hertzian Contact Apparatus

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Hertzian Contact Apparatus

Model No: THMC-09

 

  • The Hertzian Contact Apparatus is a self-contained and easy-to-use unit that shows the nature of contact between two surfaces. 
  • It compares experiment results with predictions based on Hertz’s original theories. 
  • A hand-operated hydraulic pump and cylinder force the two pads together. 
  • Students may rotate the lower pad, a pointer shows the angle of rotation. 
  • This allows a study of the effect of different relative curvatures. 
  • The apparatus has two pads with curved contact surfaces. The upper pad has a compound radii. 
  • The contact zone may be circular or elliptical, depending on the relative angular position of the two pads. 
  • Supplied is a transparent scale to measure the contact shape and angle. 
  • Locknuts on the threads of the pump work to limit the maximum pressure, preventing damage to the equipment.