| Added on 02/01/2012 | Tool (Decay) |
IML Impulse Hammer
Also known as 'Stress Wave Timer' and 'Electronic Hammer'.
The Impulse Hammer is a device that measures the rate at which sound travels through wood (the top of the adjacent photograph shows an older version). Sound travels fastest through solid wood. Decayed wood will slow its path. By measuring the speed that sound takes to pass through a tree, an idea of its condition can be obtained.
To use: First two screws are fixed through the bark across the plane that you wish to test. A sensor is fixed to one screw. A special hammer is used to strike the opposing screw and create a sound pulse. Wiring transmits the results back to the electronic measuring device and the results are displayed and recorded.
|