Here’s an inexpensive and simple test to evaluate any machines true performance specifications for yourself or we would be happy to perform this test for you at time of service for a nominal fee.
True frequency readings can be done both loaded (user on machine) or unloaded.
With the aid of a laser guided tachometer available at most automotive suppliers, simply point the laser at the pre positioned metallic strip (supplied with the tachometer) attached to a piece of plastic or wood , then secured to the outside edge of the platform with two sided tape. Take the reading at both the lowest and highest speeds of the machine; these figures represent RPM(revolutions per minute). Next divide the figures by 60 to calculate Hz(revolutions per second). Now you have a relatively accurate true Hz frequency of your machine.
To discover the machines actual amplitude, another simple test can be performed using a pencil and a piece of cardboard. Taking another piece of the two sided tape, secure the pensile to the outside edge of the platform, make sure the pencil is sticking far enough over the edge to make contact with the cardboard. The cardboard can now be secured to either the side of the platform cover or another stationary object placed next to the machines base. Making sure the pencil is in contact with the card board start the machine and take notice of the pencil marks running up and down on the cardboard.
Stop the machine and remove the pencil and cardboard. Measure the total length of the pencil marks in millimeters and record, this is not the most precise measuring system for amplitude but it will serve our purpose.
G Force or load resistance calculation
Taking the figures from our readings of both low and high speed, along with our amplitude, we can Calculate the possible G force your machine is capable of generating by using the calculator made available to us at Hypervibe.