| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure regulator control system which performs adjustment so as to maintain correct response to the environment where load or the like is constantly changing. SOLUTION: When the load is small, only a governor 1 is operated. A governor 2 starts to operate when a detecting means 40 detects that a valve-opening reaches 80% which is set as an upper limit of normal operation state. Secondary pressure P2 of the governor 2 is detected by a pressure gauge 62, and degree of deviation of variation from a predefined range is determined by a deviation determination means 63. Speed of response of a servo amplifier 61 is set to a little higher, and a speed modification means 64 reduces it by degrees according to the degree of the deviation. COPYRIGHT: (C)2004,JPO&NCIPI
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