Measurement method by inferring the thrust from the stress of the cantilever beam based on the photoelasticity theory.

摘要: A new, to the best of our knowledge, thrust measurement system based on photoelasticity theory has been developed infer from stress cantilever beam. In this method, beam is employed as loading element convert low into high stress, and modified dynamic used value Stokes parameters emergent light. The experimental results validated that stand could measure in range millinewton or millisecond, thickness was negatively correlated with accuracy. average errors measurements for ampere forces were higher than 25 mN pulse whose widths longer 45 ms less ${\pm 5}\% .$±5%. As real plasma discharges, measured 10}\% $±10%.