Dither is used to create a PWM signal on proportional amplifiers
Servo valve amplifiers do not require PWM, so a dither signal (sine wave) adds to the desired DC output
Dither frequency is selected to minimize static friction, improving hysteresis
Caterpillar Hydraulic
Dither is used to create a PWM signal on proportional amplifiers
Servo valve amplifiers do not require PWM, so a dither signal (sine wave) adds to the desired DC output
Dither frequency is selected to minimize static friction, improving hysteresis