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发表于 2019-5-22 11:08:49
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移动阀芯需要能量。 当油流动时,存在试图将阀芯移离正确位置的流动力。 放大器提供足够的功率,使阀芯保持在正确的位置。
It takes energy to move the valve spool. When oil flows there are flow forces that try to move the valve spool away from the correct position. The amplifier supplies enough power to keep the valve spool in the correct position
有时需要2到4安培来移动阀芯。 控制信号通常为+/- 10伏,电流很小。 阀门放大器将电压转换为电流。
Sometimes it takes 2 to 4 amps to move the valve spool. The control signal is usually +/- 10 volts with little current. Valve amplifier converts voltage to current.
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