| 摘要 |
PURPOSE:To ensure that whenever the input is O, the blind sector compensation circuit issues the electric output signal O, by having the output O issued whenever the absolute value of the input signal is small enough not to affect the control system characteristics. CONSTITUTION:A specific level DELTAZ is set small enough so that any imput signal within this level does not affect the control system characteristics, and when absolute value of an electric imput signal Z does not exceed the specific level DELTAZ, resultant output signal X becomes O. When absolute value of an electric input signal Z is larger than the specific level DELTAZ and the value is positive, the output signal X becomes the sum of the positive upper limit value of a blind zone + Xo; or, if the input signal Z is negative, the sum of the megative lower limit level>=Xo. For more frequent cases where the electric input signal is O, resultant output signal is always O, and on electric current is supplied to the solenoid of the flow control valve, saving that much electricity. |
