本文介绍电液伺服阀频率特性的压差式测试原理及频率特性测试仪的硬软件结构、原理及特点。
This paper presents the principle, hardware structure, and features of a frequency characteristics instrument for electro-hydraulic servo valves.
该阀具有很高的切换速度和频率，可以用来作为大流量高速开关阀的先导控制阀，也可以在小流量回路中直接作为控制阀使用。
It has the higher switching speed and frequency and can be used as the pilot valve for a larger flow rate valve, or as a direct control valve for small flow rate hydraulic loop.
与喷嘴由电磁阀控制的气体靶激光等离子体软x射线源相比，它有较高的工作频率。
And it has higher operating frequency than gas target soft X-ray sources whose nozzle is controlled by a solenoid valve.
实验结果表明，这种探头有较好的频率响应特性，能满足换流阀晶闸管电位分布测量的需要。
The experimental results show that the probe has good frequency response characteristics which meet the requirement of measuring voltage distribution of thyristor in converter valve.
振动采用液压马达，解决电机发热难题，振动频率通过比例阀可调，并采用油研液压原件，使机械更加可靠、稳定。
Vibrating motor, it prevents the heat problem of the engine. Vibrating frequency is changeable. With the exported hydraulic parts, it is more reliable and steadier.
提出了利用相对频率幅值比和相对频宽的电液伺服阀力矩马达的设计概念。
The design concept of the relative frequency amplitude ratio and the relative frequency width of toque motor stiffness of electro-hydraulic servo valve are proposed.
采用频率特性分析方法研究了元件参数对分流阀的响应速度和分流精度影响。
The influence of the parameters of the valve on responding speed and flow - dividing accuracy is researched by frequency characteristic analysis method.
文中还给出了该阀的实验静态性能及动态频率特性曲线。
Static performance and frequency response test curves of the servo valve are given.
重锤卸灰阀根据客户实际工况需要调整重锤的位置来保证每次的下料量及下料频率。
Hammer dust discharge valve will adjust the position of hammer according to actual condition of customers and guarantee outlet output and outlet frequency.
液压系统中阀门(换向阀等)突然关闭时，液压泵的流量脉动频率和管道的基本频率相互作用，可能发生谐振。
In hydraulic transmission system, the pump's flow pulse frequency and the pipes base frequency affects each other, if the valves shut suddenly, resonance oscillation may take place.
试验研究了激励频率、比例阀输入电压及磁流变减振器输入电流对座椅振动特性的影响规律。
The effects of actuating frequency, proportional valve input voltage and MR damper input current on the vibration characteristics of seat were experimentally studied.
研制了一种检测氧化锌避雷器阀片的重复频率充放电装置，采用L C恒流充电技术，通过电压反馈法控制充放电运行过程。
The charging technique with L-C constant-current converter is adopted, and the repeated charging and discharging process of the device is controlled by voltage feedback.
研究结果表明，座椅悬架的固有频率、位移传递率及加速度均方根值均随比例阀输入电压的增大而减小；
The results show that, the natural frequency, dynamic amplification factor and acceleration root of mean square of seat suspension will decrease with the increase of proportional valve input voltage.
采用超磁致伸缩材料作为阀芯的高频响应元件，及精心设计的阀驱动电路，以提高电磁阀的响应频率；
Response frequency is increased by giant magnetostrictive material as valve core component and elaborate designed drive circuit.
测试结果表明，调节阀处于不稳定工作状态即阀杆振动工况取决于脉动压力与阀杆固频率是否同频，并非其脉动压力值大小；
These results show that the vibration of control valve rod depends on if its frequency and one of dynamic pressure pulse is same but not the magnitude of pulse value.
工作频率：动作频率要求高时，结构应优选直动式电磁阀，电源听优选交流。
Operating frequency: high frequency movements, the structure should be preferred direct acting solenoid valve, preferred to listen to the exchange of power.
由于通路正常位置，或说静止位置阀位为关闭状态，所以能够根据实际需要，在井眼任意位置以任意频率循环井内管柱，且不需要永久性拆卸工具。
Because the normal, or neutral, position of the ports is closed, the running string can be circulated as often as necessary, at any point in the wellbore, without permanently deactivating the tool.
电磁阀是快开和快关的，一般用在小流量和小压力，要求开关频率大的地方电动阀反之。
Solenoid valve is open and fast speed, and tends to be used in a small volume and small pressure to the switching frequency of the local electric valve big contrast.
电磁阀是快开和快关的，一般用在小流量和小压力，要求开关频率大的地方电动阀反之。
Solenoid valve is open and fast speed, and tends to be used in a small volume and small pressure to the switching frequency of the local electric valve big contrast.
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