Straight Edge
The interaction between the player and the field is an important factor in determining the traction properties of a field.
Various sports associations such as FIFA and FIH have written standards for the properties of an artificial grass pitch. And there are also experimental tests on natural grass. One of these standards is the torsional or rotational resistance of a field.
If the resistance of the field is too large (> 50 Nm), it can cause nasty injuries for the players.
If the resistance is too low (<30 Nm), this has consequences for the grip, causing the athlete to slip.
For these reasons,FIFA, among others, has decided to draw up a standard for the rotational resistance of artificial grass pitches.
A test foot with studs is loaded with a spring construction up to 450N force. The torque moment in Newton meters is then determined with a torque wrench.
Furthermore, the lightweight Rotational Resistance Tester has special bearings to minimize the rotational resistance during rotation.
Special attention has also been given to the ergonomics of the device. Partly due to the new FIFA 06a standard, it is possible to achieve a weight saving of 80% and the total weight is now around 7 kilos.
Something that greatly benefits mobility on the measurement field. (Note: the device is not yet CEN accredited, it does, however, give comparable torque measurement values).
The Straight Edge has been developed to measure the evenness of the surface. This device is especially used when the foundation of sports fields is laid.
he Straight Edge can be delivered in three or four meter versions. Special attention is paid to the user-friendliness.
To facilitate transport the Straight Edge can be disassembled in three parts.
The joints are made from special synthetic fibre with strong lever clamp mechanisms.
Wedge
Measuring wedges with thickness markings can be supplied (optional) with the Straight Edge.
By pushing the wedges between the surface and the Straight Edge, the deviation
of straightness can be read. The measurements are according to the FIFA regulations in which a reference is made to the European NEN 13036.
The Deltec Straight Edge exceeds the 0,5mm precision requirements of the prescription.
Your benefits:
· Light in weight
· High quality
· User friendly
· Compact
Applications: Football (surface regularity), Hockey (pitch smoothness), Tennis(evenness), Athletics (evenness), Rugby (evenness)
Standards: EN 13036-7, EN 14904, EN 15330, ITF CS 02/02
