Experimental Study on Phase Holdup in Three-phase External Loop Airlift Reactors Using Electrical Resistance Tomography 采用电阻层析成像技术测量三相外环流反应器中相含率的实验研究
By eliminating the mutual flux leakage in the transformer loop equation, a two-terminal network only containing the winding resistance and the leakage inductance is generated. 该原理通过消去变压器回路方程中直接体现主磁通的非线性项,构造了仅含漏电感和绕组电阻的二端网络。
The results of the influence of isolation on the shock response of the pump and flow loop show that the pump isolation improved the shock resistance and reduced accelerations of the loop components. 循环泵隔振对循环泵和回路系统冲击响应的影响研究表明,循环泵隔振系统具有良好的抗冲击性能,隔振器降低了回路系统的响应加速度。
Having designed the non-wearing testing system the essay analyzes the influence on the temperature-rising curve by the surrounding temperature and the loop resistance and then the non-wearing nature of the transient pulse test is verified. 研究设计了无损检测系统,分析讨论了环境温度、回路电阻对温升曲线的影响,并对瞬态脉冲试验的无损性进行了验证试验和分析。
The application of octagonal loop resistance turning dynamometer in the three directive forces static rigidities measuring of the lathe tool 八角环电阻式车削测力仪在车床三向力静刚度测定中的应用
When an inverter works in open loop state, loading and unloading will change RMS of the output voltage because of the inductance of the filter, the on state resistance of the IGBT, the resistance of the wire, etc. 逆变器开环工作时,由于输出滤波器的电感、功率管导通压降以及导线电阻等多种因素的影响,使逆变器在加卸载过程中输出电压有效值发生变化。
Design and Calculation of Current-conducting plate and Flexible Conducting Element in Secondary Loop of Electric Resistance Welding Machine 电阻焊机次级回路中导电板和柔性导电件的设计与计算
Based on the voltage sharing principles among series loop resistance, analyzes common problems of work under low voltage, presents relevant countermeasures. 将串联回路电阻间的电压分配原理作为基本出发点,分析解决低压电工作业中的几个常见问题,提出了相应的对策和注意事项。
The loss of efficient head of circulation pump in the primary loop of PWR will increase with the increase of resistance coefficient of JetPump under forced circulation. 强迫循环条件下,压水堆一回路主循环泵有效压头的损失随喷射泵阻力系数的增加而增加;
This paper introduces the structure, functions, and features of CLC ( Cable Loop& Axle Counter) system, which is designed for increasing the stability of automatic block in low ballast resistance zone. 简要介绍解决低道床漏泄电阻区段自动闭塞稳定运用的CLC(计轴+环线)系统的主要设备构成、功能及特点。
In addition, the selection of the radius and optimal location of the loop and calibration resistance are discussed. 讨论了刻度环大小选择、最佳刻度点和刻度电阻确定问题。
To increase axial cracks expansion resistance and reduce pipe material loop cracks expansion resistance both can improve the anti-tearing properties of gas transmission pipeline. 增大轴向裂纹扩展阻力和降低管材环向裂纹扩展阻力均可提高天然气输送管道的止裂性能。
Conclusion: The diameter of bacteria inhibiting loop is more sensitive than resistant rate to reflect resistance change and its trend. 结论抑菌环直径变化比耐药率变化更能反映细菌耐药性及变化趋势。
A three phase half controlled bridge circuit with constant current and high efficiency is designed in the charged loop of the welding power supply. So a limiting current resistance is canceled. 在焊接电源的充电回路中设计了三相桥式半控、恒流高效充电回路,取消了限流电阻;
M long horizontal loop pipe tests driven with a concrete pump were carried out in situ to compare calculated pumping resistance with measured ones. 为了检验理论分析结果的正确性和试验外加剂在减少膏体泵送阻力上的作用,在现场约90m的水平环形管路中进行了由混凝土泵驱动的充填膏体输送阻力试验。
The error of close loop gain of inverse proportion amplifier, which is caused by the influence of open loop input resistance of operation amplifier can be negligible when the open loop is by the gain of the operation amplifier. 证明当运算放大器的开环增益足够高时,在适当地选取比例运算放大器的输入端电阻和反馈电阻的条件下,运算放大器开环输入电阻对闭环反相比例放大运算精度的影响是可以忽略的。
Loop Resistance Tester and the Application 环路电阻测试仪及其应用
As a general case of the second order nonconservative autonomous systems, the processes in an electrical loop containing nonlinear resistance, capacitance, and inductance are studied qualitatively in this paper. 作为非保守的二阶自治系统的一般情形,对同时含有非线性电阻、电感、电容的回路中的过程作了一些定性研究。
Based on analyzing the characteristics of chilled water loop resistance varying with the air-conditioning loads, a general formula of the energy consumption of variable speed chilled water pumps is obtained. 通过分析冷冻水管路特性随空调负荷变化的特点,得出了计算空调冷冻水泵变频调速运行总能耗的一般关系式。
Single Loop Differential Method for Measuring Signal for Resistance Strain Gauge 电阻应变片信号的单回路差动测量
The second scheme adopted waveform test method totally based on virtual instrument, which can attain the test electric appliance's loop voltage, contact resistance of touch end, action time and release time and make integration degree of the test system is higher. 第二种方案完全基于虚拟仪器技术,采用波形分析方法可以直接得到电器的线圈电阻、触头的接触电阻、动作时间和释放时间,使测试系统集成度更高。
Phase lock loop and benchmark resistance compensating technologies were used to improve the detection precision, the error was less than 10%. 通过锁相放大技术及基准电阻补偿方法提高了测量的精度,误差在10%以内。
The Koch fractal is also applied to small loop antenna and the analysis results show that the Koch fractal can improve the input resistance of small loop antenna. Koch分形也被用于环天线,研究结果表明Koch分形可增加小环的辐射电阻。
The speed loop control strategy was designed, which adopted resistance integral saturation PI control control strategy, and in order to accurately calculate the feedback speed value, a speed estimation method based on the speed observer was used in the control strategy. 速度环采用基于变速积分方式的增量式PI控制策略,并且为了更准确的计算出反馈速度的值,控制器采用了基于转速观测器方式的反馈速度估算方法。
Due to the closed loop characteristic, the gain which is determined by the resistance is very accurate. 由于是闭环的放大器,增益精度由无源电阻的比值决定,较为准确。
Rectangular frame columns long load-strain curves of longitudinal reinforcement in the Middle forms a butterfly-shaped loop, indicating that the longitudinal steel should not only be to structure reinforcement effect, but also in the principal resistance to torsion. 框架矩形柱长边中间纵筋荷载-应变曲线形成了蝴蝶状滞回环,这表明该位置纵筋不仅要起到构造配筋作用,而且还要起到承担抵抗扭矩作用。
In this dissertation, a close loop on-line estimating method of stator resistance is presented. 本文提出了一种定子电阻闭环在线估计方法。
The results clarified the function of domain ⅲ loop structure and they provided us new ideas to build broad-spectrum engineered strains with enhanced virulence and to solve the increasingly serious problem of insect resistance. 该研究结果对于阐明结构域Ⅲ及其loop结构的功能具有一定意义,同时它还为我们构建杀虫作用增强的高效广谱工程菌株,解决日益严重的昆虫抗性问题提供了新的思路。
Compared to woven fabric, knitted fabric can be used as large strain sensor due to its easy deformation under stress and have larger sensitivity for its loop structure that can provide more contact resistance of yarns. 相对于机织物与非织造物,针织物结构可以抵抗大的变形而作为大应变传感器。同时其结构可以提供特殊结构的纱线之间接触的线圈来实现织物的传感特性。
Protective character depends on: it reduced the corrosive medium in the electrode surface of the cluster, blocking the reactant and corrosion product transmission, increased the loop resistance, the surface defects is decided after the corrosion resistance of handling important factors. 防护特性在于:它减小了腐蚀介质在电极表面的集聚,阻挡了反应物和腐蚀产物的传输,增加了回路电阻,表面缺陷率是决定处理后耐蚀性的重要因素。