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TM 262 Hertzian pressure

FEATURES:

 

  • Demonstration of the characteristics of a contact area particularly easy to see due to use of transparent plastic with silicone rubber

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

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