Servo unit

Abstract

Abstract PURPOSE: To make it possible to eliminate a stationary speed deviation by generating a deviation signal by finding the deviation of the sum of an input signal and its weighted integral value from its feedback signal. CONSTITUTION: An input signal from terminal 4, while supplied to arithmetic method 7, is differentiated by differentiating method 5 and weighted by weighting method 6 before being supplied to arithmetic method 7. Then, arithmetic method 7 operates the sum of both the inputs and subtracts the output signal of displacement gauge 3, measuring the displacement output of controlled unit 2, from the obtained sum to generate a deviation signal. This deviation signal is used to control controlled unit 2 through controller 8. Here, the stationary speed deviation is expressed by (1), where K f and KL are constants. Therefore, the stationary speed deviation can be eliminated by setting the weight of weighting method 6 so that C=1/(K f .KL). COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Mitsuru Muto
• 👤 Akira Iwawaki
• 👤 Hiroaki Tsuchiya

Bibliographic Details