| 摘要 |
<p>1,188,246. Fluid oscillators. HONEYWELL Inc. Aug.19, 1968 [Aug. 28, 1967], No.39542/68. Heading G3H. A fluid oscillator comprises a bi-stable amplifier 11 provided with control channels 16, 17 fed by a variable gain proportional amplifier 13 with control channels 34, 35 fed through feedback connections 60, 70 provided with capacitances 63, 73 and resistors 61, 71. The gain of amplifier 13 controls the frequency of the oscillator and is varied by altering the bias pressure applied to channel 41.</p> |
