Figure 2.
Photograph of the instrument from a greater distance showing more components than in figure 1. 1 = fixed part of the vertical translator for positioning the force detector; 2 = unregulated dc power supply; 3 = dual dc power supply for the LVDT signal conditioner; 4 = ground shield for wires from LVDT; 5= LVDT signal conditioner; 6 = signal conditioner/amplifier for force detector signal; 7 = double layer of bubble wrap; 8 = 1 cm thick foam pad; 9 = wires delivering electric power to the linear actuator; 10 = ground wire connected to 4; 11 = motion controller.
