| 摘要 |
<p>1286123 Fluid-pressure servomotor systems J C ECKARDT A G 3 Oct 1969 [4 Oct 1968] 48752/69 Heading G3P A three-term controller with feedback has a differential pressure amplifier 19 providing an output signal Y dependent on a set value W, an actual value X and on elements 20, 21 producing negative and positive feedback signals R and R<SP>+</SP>, the values X + R<SP>+</SP> and W + R<SP>-</SP> forming the input signals to the amplifier. Adjustable and fixed restrictors 15, 16 and 17, 18 provide the inputs to the amplifier and the proportional band Xp may be altered by adjustment of the restrictors 15, 16. In a further embodiment the restrictors are omitted.</p> |
