Title:
制御システム及びそのような制御システム中で用いられる制御手段、並びに相関システム
Document Type and Number:
Japanese Patent JP3869002
Kind Code:
B2
Abstract:
In a control system a characteristic quantity of a process (1) exhibits a periodic disturbance. A measuring system (2) generates a measuring signal (Vm) which represents the characteristic quantity. A control device controls the process in response to the measuring signal (Vm). To reduce the periodic disturbance, the control device (3) comprises a delay circuit (4) which delays an input signal (Vin) related to the measuring signal (Vm) by a time interval (T) having the length of a period (Tp) of the periodic disturbance. The control device (3) comprises an analysis circuit (6) for deriving an analysis signal (Va) which is indicative of a deviation between the period of the periodic disturbance and the delay time. By means of a control circuit (13) and an adapter circuit (7), the delay time (T) is set in dependence on the analysis signal (Va) to a value for which the analysis signal (Va) indicates that the delay time (T) is equal to the period (Tp). A correlation system can be used for deriving the analysis signal (Va).
Inventors:
Scouts tiger herrit
Steinbach Marten
Steinbach Marten
Application Number:
JP51441496A
Publication Date:
January 17, 2007
Filing Date:
September 29, 1995
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G05B21/02; G05B5/01; H04B17/00
Domestic Patent References:
| JP62165992A |
Foreign References:
| WO1994000930A1 |
Attorney, Agent or Firm:
Kosaku Sugimura