Dual Sensors

The latest innovation in Saw-ADD developments is the use of two force sensors in each saw guide.  One is on the leading edge of the guide and the second is on the trailing edge of the guide.  Using the differential of dual sensors provides a measurement of twisting on the saw blade that steers it into deviation. It also provides a common mode rejection that allows a gain on the control signal, giving it about 100 ms lead time over a single sensor. This is a tremendous advantage for closed loop control of the feed velocity.