In this document a servovalve is defined only as a valve, normally used in a servomechanism which has a hydraulic output (flow, pressure) which is a function of an electrical input (voltage, current, differential current). This ARP will confine itself to describing those parameters which are peculiar to such valves.
SAE ARP490-1993由美国机动车工程师协会 US-SAE 发布于 1993-09-16。
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