SCHEDULE 1 REGULATION 12 measurements. The centre of mass of the drop head form shall lie over the centre of the anvil. Guide Assembly – a headform shall be attached to a free fall or rail guided drop assembly carriage by an adjustable mounting or other means that will allow impacts to be delivered at any prescribed point on the headgear. Accelerometer – a set of three accelerometers in a three axis array are mounted at or close to the centre of gravity of the test headform when the headform is mounted in the free fall carriage assembly. Impact Recording and Displaying Instrumentation – the impact shall be recorded and displayed on a storage oscilloscope with specified deflection factors, sweep speed per division and bandwidth for each of the accelerometers and be capable of resolving the gmax of the headform. Equivalent instrumentation capable of recording, displaying and storing the impact signal from the accelerometers shall meet this requirement. Figure 4. Typical apparatus for Impact Testing of Headgear Last update: 3 January, 2017 222
World Rugby Handbook
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