控制元件

A universal character of actuator is saturation in control system.

物理元件的饱和特性是控制系统中普遍存在的一种现象。

Experience in analogue signal processing product design is a must.

低压电器元件在工业控制系统中的应用经验，如电子继电器、PLC相关接口模块

Based on the application of transistor temperature control box for electrolytic aluminium foundery blending holding furnace in Baotou Aluminium Industry Group Co.

本文通过晶闸管温控柜在包头铝业集团公司电解铝铸造混合保温炉中的应用，说明现行交流接触器的平凡通断控制炉温方式有很多缺点，而使用无触点开关的晶闸管控制温度，即可节约电能又可节约加热元件硅碳棒，取得的经济效益是非常可观的。

400Hz inverter is a special powers supply used in the aeronautical system. There are some disadvantages such as too many control elements , unflexible, bad consistency.

400Hz逆变电源是航空专用电源，目前市场上的产品大都采用模拟控制方式，其中存在控制电路元件多、灵活性差、一致性差等很多问题。

FACTS can control the parameter and structure of the AC power system flexibly and fleetly, then the system stability and reliably can be improved greatly, Unified Power Flow Controller colligates the control function of many FACTS element, and has been considered as the most creative and powerful element in FACTS.

FACTS能实现对交流输电系统参数以至网络结构的灵活快速控制，从而大幅度提高系统稳定性、可靠性，其中，UPFC综合了许多FACTS器件的灵活控制手段，被认为是最有创造性的，是功能强大的FACTS元件。

By using VDMOS field-effect transistorsas the switch elements, the electronic controlling circuits of the PM brushless DC motor, including the main power switch circuit , power driving circuit, absorption circuit, and logic controlling circuit, are designed.

用 VDMOS场效应晶体管作为开关元件，设计了稀土永磁无刷直流电机的电子控制线路，主要包括：功率开关主回路，功率驱动回路，吸收回路，逻辑控制电路。

They explain the interaction between these parameters, and help to the design of active vibration control system of piezoelectric smart cantilever beam. On the above, the optimal model with m pairs of PZT sensor/actuator and state equation are established, and the PZT films position/length and the feedback control gain are optimized with the method of moving asymptotes.

在此基础上，本文进一步研究了同位布置多对压电传感/致动元件的悬臂梁关于压电传感/致动单元对的布置、长度和控制增益的优化设计模型，并利用MMA(the method of moving asymptotes)算法对压电片的位置、尺寸和控制增益进行了优化计算。

This utility model is combined with controller series, attain the required voltage, and then put the resulting series DC voltage by oscillators converts AC voltage.each solar battery pack over-discharge buildingup, dangelmayer, adopted by the series of microprocessor and complementary components of the circuit to control this control circuit management, together with the ciyutuo program software to make up the " serries solar battery charging and discharging controller ", do not need inverter adrenotensin, you can be used directly for energy saving lamps or other to adapt to the mains voltage electrical and electronic appliances, and thereby save General inverter converts adrenotensin faches as a result of waste, and therefore reduce the time of conversion of electrorheological, Terminal′s makes solar power and use have become a stable and reliable.

本串联型太阳能电池充放电控制器就是结合控制器之间的串联，达到所需电压，再把串联所得到的直流电压，通过震荡器转换为交流电压。每个太阳能电池组对蓄电池的充、放电，采用串联的由微处理器及配套元件组成的电路进行控制管理，此控制电路并配合配套的程序软件组成了&串联型太阳能电池充放电控制器&，不需要逆变器升压，就可以直接使用节能灯或者其它适应市电电压的电子电器设备，从而省掉常规逆变器转换升压环节所造成的浪费，并因此减小转换时低压端的电流，使太阳能发电和使用都变得稳定可靠。

Reaction wheel is an important executive component of satellite attitude control system,and the improvement of flywheel system is spurred by high performance satellite attitude control system.

反作用飞轮是卫星姿态控制系统的重要执行元件，提高飞轮系统的性能对卫星姿态控制系统具有重要意义。

Lid landing gear box body is formed with the motor gearbox. When the furnace cover needs opening , simply press the button in the control box then the furnace cover will descend at a uniform speed .For the sake of safety ,two movements institutions tops trip switch are mounted in the carburizing EAF .When the furnace cover is ascending , the lower movements institutions tops trip switch will automatically cut off the seepage carbon EAF control cabinet main circuit power supply, forcing the heating elements stop working since the power is cut off, The upper switch is used to restrict the height of the movements axis ,it can prevent the movements pumped up too high to cause theelevating screw abscisicing from the gear box.

炉盖升降机构由电机齿轮箱组成，当需要开启炉盖时，只需按下控制箱上的按组，炉盖即以均速上升下降，为了安全起见，在渗碳电炉升降机构上装设有两个行程开关，当炉盖上升时，下边的行程开关自动切断渗碳电炉控制柜主回路电源，使加热元件断电停止工作，上边的行程开关则限制升降轴升起的高度，以防升降抽升起过高，升降丝杆脱出齿轮箱。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。