DESCRIPTION
Technical Description
This portable unit demonstrates the characteristics of the contact area in the case of Hertzian contact.
A pressure pad made of rubber is pressed against a transparent plastic plate using a lever. Plate and pressure pad are convex. In this way both circular and also elliptical contact areas can be generated.
The force on the lever is measured with the aid of a spring balance and the contact area is measured. This can be clearly seen as it is illuminated from the side by a halogen lamp.
Learning Objectives / Experiments
- Characteristics of the contact area on point contact with varying contour radii
- Characteristics of the contact area as a function of the contact force
- Influence of an additional transverse component in the contact force
FEATURES
Specification
[1] Benctop experiment for demonstrating Hertzian contact
[2] Pressure pad made of silicone rubber
[3] Transparent plastic pressure plate
[4] Dynamometer spring balance
[5] Sliding device for spring balance to allow continuously adjustable contact force
[6] Optimal illumination of the contact area using halogen light from the side
[7] Sturdy metal chassis with rubber feet
Technical Data
Spring balance
- 0...25N, graduations: 0.5N
Pressure pad: 60 Shore
Halogen lamp
- voltage: 12V
- power: 20W
Dimensions and Weight
l x w x h : 400 x 400 x 530 mm
Weight : approx. 16 kg Required for Operation 230V, 50/60Hz, 1 phase
Scope of Delivery
1 complete experimental apparatus
1 instruction manual
