The development of a six-component force/moment sensor testing machine and evaluation of its uncertainty
Gab-Soon Kim · Measurement Science and Technology · 2000
This paper describes the design and fabrication of a six-component force/moment sensor testing machine and the evaluation of its uncertainty. This testing machine, which generates forces F x ( x -direction force), F y and F z from 50 to 500 N each and moments M x ( x -direction moment), M y and M z from 5 to 50 N m each, simultaneously or separately, consists of a body, a fixture, a force generating system, a moment generating system, weights and a control system. Forces and moments are automatically generated by the control system composed of a computer, three step motors and so on. Also, the relative expanded uncertainty of the testing machine is evaluated. The results show that the relative uncertainties for force components ± F x and ± F y and moment components ± M x and ± M y are less than 8.6 × 10 -4 and those for force components + F z and - F z and moment components ± M z are less than 1.7 × 10 -3 , 1.2 × 10 -5 and 1.7 × 10 -3 respectively.