查询词典 battery current

LEAK INDICATION - Audible Alarms: Two user-selectable audible alarm option TACHOMETER VISUAL DISPLAY - Tachometer-like bar graph display: Eight high intensity LEDs GEARSHIFT VISUAL DISPLAY - Arranged in a gearshift pattern, 7 LEDs indicate the current sensitivity range of the unit and subsequent leak size FLEX PROBE - 14"/35.5cm long, 0.25"/6.4mm diameter OPERATING TEMP - 0 to 140°F /-18 to 60°C POWER - 75 hours battery life using three size "C" alkaline batteries.

泄漏指示-音频报警：两个用户可选的声响报警选项测速视觉显示-转速样条形图显示： 8个高强度的LED视觉显示换档-排列在换档模式， 7个发光二极管显示目前的敏感性范围内的单位和随后泄漏规模弹性探头- 14 "/三十五点五厘米长， 0.25 "/六点四毫米直径操作温度- 0到140 ° F /-18至60 ° C电厂- 75小时的电池寿命使用三种大小的" C "碱性电池。

The car is after the use through period of time, the metropolis on the chapiter of column of general storage battery collects not little oxide, these material meet those who affect electric current pass, cause electric power possibly below chilly climate to be not worth.

汽车在经过一段时间的使用后，一般电瓶柱的柱头上都会聚集不少的氧化物，这些物质会影响电流的通过，在严寒气候下可能造成电力不足。

During maintenance,operators likely neglect measuring the daily floating current of the battery and taking records respectively.

在蓄电池组的日常维护工作中，维护人员容易忽略对蓄电池组日常浮充电流的测试和记录，其实浮充电流的大小变化是衡量电池组运行状态的重要因素，特别是对在室温较高的环境下、使用年限较长的蓄电池组尤为重要。

A stand-alone solar LED lighting system usually consists of a DC/DC converter to convert the floating battery voltage into a constant current to drive the LED.

独型太阳能LED照明系统，於白天时用铅蓄电池，蓄存太阳电池阵所产生之电，并於夜晚点LED灯具。

Also protect circuits against loss of hall signal, low battery voltage, over current are included.

此外，还包括了霍尔传感器断线检测、电池欠压保护、过流保护等保护功能。

As the battery has completed fast charging with constant current,it shall be put into the (40±5)℃,90%-95%RH thermos humidistat for 48h; then taken out at(20±5)℃for 2h.

完全充电后，在 40±2℃，相对湿度为 90%-95%的恒温恒湿条件下搁置 48h 后，再取出放在 20±5 ℃条件下搁置 2h 再以 1C5A 放电。

It with wired compares mainly has the cost to be low, carries conveniently, omits the wired wiring the worry; Specially is suitable to grasping the equipment the correspondence, the battery power supply equipment, the vehicles monitoring, the remote control, the telemetering, the small wireless network, wireless copies the table, the system, the plot messenger call, the industry data acquisition system, the wireless label, the status recognition, must contacts the RF smart card, the small wireless data terminal, the safe fire protection is systematic, wireless domain and so on in external guidance system, biological signal gathering, hydrometeorology monitoring, robot control, digital audio frequency, numeral image transmission the low power loss, the microminiaturization is the current wireless correspondence product then takes along the product in particular the urgent need and the key question.

它与有线相比主要有成本低，携带方便，省去有线布线的烦恼；特别适用于手持设备的通信、电池供电设备、车辆监控、遥控、遥测、小型无线网络、无线抄表、门禁系统、小区传呼、工业数据采集系统、无线标签、身份识别、非接触RF智能卡、小型无线数据终端、安全防火系统、无线遥控系统、生物信号采集、水文气象监控、机器人控制、数字音频、数字图像传输等领域中。低功耗、微型化是当前无线通信产品尤其是便携产品的迫切要求和关键问题。无线通信的另一个关键问题是数据传输的可靠性，这取决于诸多因素，如频率选择、同频干扰、传输距离、天线选择等，这些在设计无线通信系统时都要认真考虑和比较。

A simple constant voltage and constant current charger has been improved, the state of float charger has been added to the charger in order to guarantee the full charge of battery safely, with high charge speed.

本论文对一种简单实用的恒压恒流充电器进行了改进，在恒压恒流充电的基础上加入了浮充状态，从而保证了蓄电池的满充；同时对充电器的功率电路和控制电路进行了详细的设计，并且给出了实验结果。

Some of this IC card with internal battery, can work a few years or three years, and some are on the induction coil current work.

这种IC卡有的带有内部电池，可以工作3年或是几年，也有的靠线圈的感应电流工作。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。