SPIRAL Track is mechanical measuring instrument equipped less than 1% of nonlinearity accuracy with high performance of tracking ability due to backlash “zero” top design, consisting of 4 to 6 cylinders sleeve with spiral grooves. All sleeves expand and contract measuring the displacement of thorax and abdomen of dummy by angle sensors. In the base of sleeves, 3 sets of rotary angle sensors (x-axis, y-axis, z-axis) are assembled and detect even oblique displacement as well.
Feature
Mechanical construction makes high reliability as measuring tool. Nonlinearity is less than 1% performance makes high accuracy of sensor. Backlash “zero” makes high tracking ability. Expansion and contraction structure makes wide ability of usage.
According to the standard specifications of Hybrid-III 50th Male Dummy and 5th Female Dummy, a friction knee slider is installed in both of them, however, with the newly developed ball bearing knee sliders, both 50M and 5F can address needs in the market.