Frequency response tests on force measuring head for BR-BW 'high speed' pantograph (IM-ES-095)

The current method of measuring dynamic pantograph/wire contact force employs two strain gauged side-beams which measure the load directly below the contact strips, and two accelerometers placed centrally underneath the contact strips. (See Fig. 1). Under static conditions the strain gauged side-beams can accurately measure the true pantograph/wire contact...