| 摘要 |
1,188,128. Fluid switches. GENERAL ELECTRIC CO. 26 July, 1967 [25 Aug., 1966], No. 50298/69. Divided out of 1,188,127. Heading G4P. [Also in Division G3] The cavities of a pure fluid digital or analogue amplifier have a rough surface to improve its signal to noise ratio. The amplifier has a power fluid inlet P s , control fluid inlets P c1 , P c2 , controlled fluid outlets P o1 , P o2 and vent orifices 18-22. The lower layer of the residual sandwich construction is coated with aluminium oxide particles having a diameter less than one tenth of the width of power nozzle 11. The specification sets out optimum dimensions for the various parts of the amplifier. |
