Return to the ITF homepage
Jump to more ITF websites
Return to the Technical homepage
Home Page
Overview
Virtual lab
Introduction
Ball approval
Introduction
Acclimatisation
SelectedPre-compression
Mass
Size
Deformation
Rebound
Colour
Court surface testing
Racket performance
Spin
Other projects
Introduction
Ball aerodynamics
Ball durability
Dynamic ball testing
Shoe-surface interaction
Line-calling systems
Pre-compression
Pre-compression machine
Pre-compression machine
Before any testing takes place, all balls are pre-compressed to remove any “set” in the ball. Set is a property that occurs in some materials when they are not subjected to varying forces. This is true for tennis balls between the time they are packaged and when they are opened for testing.

The pre-compression machine compresses each ball 2.54 cm (1 inch) three times from three directions using pneumatic actuators.

Previous / Next



^ Back to Top
  What is RSS? RSS Feeds from the ITF Contact Us
© Copyright by ITF Licensing (UK) Ltd. All rights reserved. No portion of this website may be duplicated, redistributed, or manipulated in any form. By accessing any information beyond this page, you agree to abide by the itftennis.com Privacy Policy and Terms and Conditions.