查询词典 voltage

Introduces how to prevent and emendation control the voltage instability program of electric power system using the indicator of voltage instability in detail.

详细介绍了利用电压不稳定指示器来预防与校正控制电力系统中的电压不稳定性问题。

In addition, the Watt–hour capacity or energy capacity is the time integral of the product of discharge current and voltage from full charge to cutoff voltage.

此外，电能容量或能量的能力是时间的放电电流产品的组成和电压从全收费截止电压。

According to singular entropy and Percent of contribution to total energy, the de-noising rank is obtained and the signal is reconstructed. The thesis compares reconstruct wave form of different reconstruct rank and the error of original signal and reconstruct signal is contrasted.According to voltage flicker measurement, voltage flicker detection method based on Mathe Matical filtering and Teager Energy Operator is proposed. The multiple MM filter filters out pulse noise and white noise contained in fliker signal, then the filtered signal is tracked accurately and quikly via TEO.

提出了基于数学形态滤波和TEO能量算子的电压闪变快速测量方法，含噪电压闪变信号经过多结构元素复合数学形态滤波后，采用TEO能量算子计算跟踪电压闪变信号的包络，得到的包络信号用Pisarenco谱分析方法获得闪变调制信号的幅值频率等参数，对不同情况下的电压闪变信号进行了仿真验证。

The main work can be summed up as follows: Firstly, we studied the thermal-field properties of VCSELs, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. Secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of VCSELs, and then studied the influences of the oxide-confining region with different position or thickness, and the different sizes of the gain-guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. Thirdly, we realized the coupling of electricity, optical and thermal-fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, Fermi levels and optical-field. Finally, we gave the equipotential line distributions with considering N-DBR and double oxidized-confining regions, and analyzed theinfluences of N-DBR and double oxide-confining regions on the distributions of the current density, carrier concentration, temperature and optical-field.

具体工作可以概括如下：首先，研究了VCSEL的热场特性，分析了电流扩展，材料参数和工作条件对于温度分布的影响；其次，从电极电压入手，计算出激光器中的等势线分布，并对不同深度处的电压和电流分布进行比较，研究了高阻区的不同位置和不同厚度、限制层和出射窗口半径的大小对电流密度、载流子浓度和温度分布的影响；再次，实现了电、光、热耦合，求出了阈值电压，计算了不同偏置电压下的电流密度分布、载流子浓度分布和热场分布，分析了温度和载流子浓度变化对折射率、费米能级和光场的影响；最后，给出了考虑N-DBR和双氧化限制层时激光器中的等势线分布，分析了N-DBR和双氧化限制层对VCSEL电流密度、载流子浓度、温度和光场分布的影响。

Equipotential bonding is a very effective measure for reducing step voltage and touch voltage and preventing from counter-attack.

等电位联结对于降低跨步电压、接触电压和防止雷电反击是十分有效的措施。

The most important parameters for data acquisition systems design are initial error, OUTPUT voltage temperature coefficient, THERMAL hysteresis, noise, and long-term stability of the voltage reference DEVICE .

对数据采集系统设计最重要的参数是器件的初始误差、输出电压温度系数、热迟滞系数、输出电压噪声、长期稳定度。表1摘录了本应用笔记里的三种电压基准的主要误差源。

In view of situation that existing controller and networking communication of low-voltage breaker adopt user-defined protocol, which has shortcomings of poor reliability and exchangeability in communication, the paper introduced a design scheme of a new type of intelligent controller for low-voltage breaker based on DeviceNet protocol and introduced its design of hardware and software in details.

针对现有低压断路器控制器与控制网络通信因采用自定义协议而存在通信可靠性低和互换性差的缺点，介绍了一种基于DeviceNet协议的新型低压断路器智能控制器的设计方案，详细介绍了控制器软、硬件设计。

You then can use the measured excitation voltage in the voltage-to-strain conversion to compensate for lead losses.

然后你能通过测量励磁电压在voltage-to-strain转换来补偿引导的损失。

Any change in the excitation voltage results is a change in the analog input voltage seen by the ADC.

任一变化在励磁电压的结果是由模数转换器在模拟输入电压。

While there is no standard voltage level that is recognized industry wide, excitation voltage levels of around 3 V and 10 V are common.

虽然没有标准电压水平，是公认的行业广泛、激励的电压等级3伏特和10个V是很普遍的。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。