... This is a dac zero velocity offset error. 15aug14: Turret does not arrive at position. adjusting the backlash board, see oscillation in spd,torque . ... 11feb04 : turret aToD and signal conditioning. 14jan04: Weigh rotary floor with hydraulic jacks (.pdf) . ... This is sent via a dac and then signal conditioning board to the backlash compensation board . ... As the velocity increases this compensation is slowly removed. the dac probably has a dc offset (see 15aug14) . ...