Light Hammer
A 0.5 kg "Light" Hammer was developed for testing of
softer materials such as turf or sand. (The reduction in mass provides greater sensitivity
of the output.) The Light Hammer is the same diameter as the Standard Hammer and so the
guide tube and shipping case are also of the same design. In the GTM style the combined
shipping weight is a bit over 8 kg. The Light Hammer is raised by means of coaxial signal
cable instead of the t-handle used on the Standard or other Hammers. Its standard
drop-height is 30 cm and a spacer is provided in the top of the guide tube to facilitate
raising the hammer to a set height. Notation for the Light Hammer’s output is known
as CIV/L when dropped from its standard height of 30 cm.
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