查询词典 closed circuit

The sensor is made up of original circuit, magnetic core, Hall part, secondary coil and magnifier. There are two work modes: direct measure mode and closed-loop mode.

其结构由原边电路、聚磁环、霍尔器件、次级线圈和放大电路等组成，分直测式和磁补偿式两种工作方式。

The basic principles of thermocouple temperature measurement are two different components of the composition of the homogeneous conductor closed-loop, when the temperature gradient at both ends of existence, the circuit current will have passed, at this time exist between the two ends of Seebeck electromotive force -- Thermal electromotive force, which is the so-called Seebeck effect.

热电偶测温的基本原理是两种不同成份的均质导体组成闭合回路，当两端存在温度梯度时，回路中就会有电流通过，此时两端之间就存在 Seebeck 电动势——热电动势，这就是所谓的塞贝克效应。

If your machine has the optional hydraulic down pressure option, you will need a dedicated closed-center circuit to the seedbed conditioner.

如果你的设备有可选择的液压下降的压力选项，你就需要一个闭心的液压系统。

Three kinds of BCRC No.51534, 10322 and 10675 would be selected and acted as an experimental sample of Escherichia coli. Results shows that Escherichia coli of No.51534 will appear better performance because the maximum of open circuit voltage, closed current and power density are 1.01V, 22mA and 1342mW/m2, respectively. Concerning the effect of culture time with respect to different phase type on the electricity performance of MFCs, the time points on the intersection between lag phase and logarithmic phase, the middle of point of stationary phase for growth curve of Escherichia coli would appear a good performance of MFCs. In addition, the BCRC No. 51534 Escherichia coli possessing a better performance of MFCs than others would be suggested and applied to further studying. Comparison with the performance of MFCs with respect to electron mediator under different mole number, result shows that electron mediator of methylene blue with 4.63mM would appear a better electricity performance of MFCs than others. Concerning the different material of proton exchange membrane with PTFE-Nafion, Nafion 211, 212 and 117 with respect to the performance of MFCs, result shows that the Nafion 117 applied in MFCs will have a better performance of MFCs than other cases. Finally, the effect of molar concentration on the performance of MFCs would be expected at the studied cases of 0.4M, 0.2M, 0.1M and 0.05M respectively for cathode oxidant, result shows that a good performance of MFCs will happen at the condition of 0.2M. Those observations will be useful to improvement of MFCs in the further study.

於上述电池系统条件下，进行大肠杆菌生长曲线、电子传递介质、质子交换膜、电极与阴极氧化剂对电池电性效能分析；选择编号10322、10675与51534之大肠杆菌为实验菌株，依定量培养之生长曲线取出代表不同时生长特性时期的培养时间，利用亚甲基蓝作为电子传递介质进行实验分析从所测得的电量进行分析，以编号51534之大肠杆菌的微生物燃料电池有最大的开路电压为1.01V及最大闭路电流为22mA；当极化曲线中电压为0.47V、电流为11.4 mA时有最大的功率密度为1342 mW/m2；加以负载有平均工作功率密度294 mW/m2；从生长曲线与电性效能来分析，得知生长曲线的迟滞期与对数期的转变点与静止期的中间点有最佳电性效能表现；对於加入不同莫耳数之电子传递介质methylene blue、neutral red与thionine之电池效能表现，则以加入4.63mM methylene blue电子传递介质的电池有较佳平均功率密度230 mW/m2；另对於质子交换膜PTFE-Nafion、Nafion 211、Nafion 212与Nafion 117之电池效能表现，以Nafion 117质子交换膜的电池有较佳平均功率密度340 mW/m2；对於分析加入不同莫耳数浓度0.4M、0.2M、0.1M与0.05M的阴极氧化剂之电池效能，则以0.2M的阴极氧化剂的电池可得到较佳平均功率密度429 mW/m2。

The tie circuit breaker can be operated in a normally opened or a normally closed position.

加大两台变压器的容量，使一台变压器能带全部负荷。

In this paper, the analytic expressions of closed-loop voltage amplification factor A(subscript vmf for the reversed feedback amplifier are derivated by circuit analysis, without using feedback coefficient.

用电路分析方法，不再使用反馈系数，导出4种负反馈放大器闭环电压放大倍数A的解析关系式。

This control system includes main control model, current detection, position sensing, fault detection and protection, serial interface. Anisomerous bridge topology structure is adopted to design the power converters and driver circuit. Double closed loop based on velocity and current is adopted to control AC-motor.

其控制电路主要包括主控模块、电流检测模块、位置传感器模块、串口电路、故障检测和保护电路等；采用不对称桥式扑结构设计了功率变换器及其驱动电路模块；采用速度和电流双闭环的形式，完成对交流电机的控制。

According to capability of the circuit of DC motor, build the model of DC motor; designed the speed-current double closed loop system based on the model of DC motor; analyzed the method to solve the problem of discontinuousness of current.

二、根据直流电机回路，建立电动机的数学模型；针对该电动机模型，选用速度——电流双闭环控制系统，建立双闭环系统的控制方框图；分析晶闸管相控整流方式中出现电流断续现象的解决方法。

Closed cycle adjusts a circuit having applying broadly in navar , how a project is demanded but , change into the norm to navar technology function , is not at present still very clear and definite.

摘 要：闭环调节回路在控制系统中有广泛的应用，但如何将工程要求转化为对控制系统技术性能的规范，目前仍然不是十分的明确。

DK77 HE Series electric spark digital controlling machine tool High Efficiency and fine quality Multi-technical breaking-through, six paten honored Low price, high quality All-closed loop control, automatic multi-cutting, automatic machinery precision error compensating and highly intellectual Highest precision≤0.008mm Highest smooth finish rate, Ra≤0.58um and reedless Great benefits: at Ra≤1.2um, the process speed could obtain 75mm2/min Highly integrated: clear circuit, strong stability, reliable and easy to fix Unique wire winding system employed, smooth running, noiseless and long useful life Industry controlled computer system, PLC logical control and functional module design materialize the low error rate

DK77□□HE系列高性能电火花数控线切割机床惊人的效率、优良的品质多项技术性的突破、集六项专利于一身慢走丝的效果、快走丝的价格全闭环控制、自动多次切割、自动补偿机械精度误差、智能化程度高最高精度≤0.008mm 最高光洁度Ra≤0.58um，表面无条纹高效益：在Ra≤1.2um时，加工速度75mm2/min 高集成化：电路清晰、稳定性高、安全可靠、维修方便采用独特的运丝系统，运行平稳、无噪声、寿命长采用工业控制计算机系统、PLC逻辑控制、功能模块化设计，使产品故障率大大降低。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。