查询词典 intensity of electric field

After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

开式磁路是由2片钕铁硼磁铁和主导磁板和导磁垫片组成，我们在实践过程中发现这种磁路结构不适合于低频扬声器的使用，我们通过使用FEMM（Finite Element Method Magnetics）软件包对该磁路进行了分析，该磁路的磁场范围被分成3个区域，其中在主导磁板附近形成一个正向磁场，在正向磁场的两边存在反向的磁场，音圈在工作时有很大一部分进入了反向磁场中，在反向磁场内线圈的感应电流方向与驱动电流方向相同，使得音圈呈现出负感抗特性，由于音圈的负感抗特性引起电流的增加导致音圈发热甚至烧毁，因此在扬声器中使用开式磁路时，音圈的运动范围应控制在正向磁场范围之内，否则音圈运动到反向磁场区域时将会产生很大的失真和发热，即使在设计时已经将音圈的运动范围控制在正向磁场范围之内，由于正向磁场的2个边缘磁场强度衰减太快，同时开式磁路中磁场的分布不是平行的，而是自由发散的分布，这样肯定会导致扬声器的非线性失真，因此我们得到的结论是：开式磁路并不是一个理想的磁路，它不适合于低频扬声器的使用，但它还可以应用于中高频扬声器。

The opened magnetic circuit is composed as tow NdFeB permanent magnets and a top plate without U-yoke. After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

开式磁路是由2片钕铁硼磁铁和主导磁板和导磁垫片组成，我们在实践过程中发现这种磁路结构不适合于低频扬声器的使用，我们通过使用FEMM（Finite Element Method Magnetics）软件包对该磁路进行了分析，该磁路的磁场范围被分成3个区域，其中在主导磁板附近形成一个正向磁场，在正向磁场的两边存在反向的磁场，音圈在工作时有很大一部分进入了反向磁场中，在反向磁场内线圈的感应电流方向与驱动电流方向相同，使得音圈呈现出负感抗特性，由于音圈的负感抗特性引起电流的增加导致音圈发热甚至烧毁，因此在扬声器中使用开式磁路时，音圈的运动范围应控制在正向磁场范围之内，否则音圈运动到反向磁场区域时将会产生很大的失真和发热，即使在设计时已经将音圈的运动范围控制在正向磁场范围之内，由于正向磁场的2个边缘磁场强度衰减太快，同时开式磁路中磁场的分布不是平行的，而是自由发散的分布，这样肯定会导致扬声器的非线性失真，因此我们得到的结论是：开式磁路并不是一个理想的磁路，它不适合于低频扬声器的使用，但它还可以应用于中高频扬声器。

First introduction whole wave commutate electric circuit of work principle, immediately after introduction the electric capacity filter the function characteristics of an electric circuit, and in the electric circuit adoption exaltation stability, exaltation temperature stability and limit flow a type over flow protection electric circuit of concrete measure with insure an electric circuit safety stability of work.

首先介绍了全波整流电路的工作原理，接着介绍了电容滤波电路的性能特点，然后引入了具有放大环节和辅助电源的串联可调式稳压电源，并在电路中采用了提高稳定度，提高温度稳定性及限流型过流保护电路的具体措施，以确保电路安全稳定的工作。

Ming-Sheng is widely used in various types of electrical appliances (such as electric fans / air conditioners / heaters / vacuum / shredder / electric knife / hair dryer / juice machine / juicer / blender / shaver, etc.), electric tools (such as angle grinder / drill / screwdriver, etc.), electric toys (such as robot / electric models, etc.), fitness equipment, medical equipment, pumps, air pump, electronic door locks, electric curtains, car accessories and other products.

明胜电机广泛用于各类电器（如电风扇/冷气机/暖风机/吸尘器/碎纸机/电动刀/电吹风/果汁机/榨汁机/搅拌器/剃须刀等）、电动工具（如角磨机/钻孔机/螺丝刀等）、电动玩具、健身器材、医疗器械、水泵、气泵、电子门锁、电动窗帘、汽车配件等产品。

Should catch the characteristic of rat tool to be the high pressure that it includes a box of body and installs in the box the body creation electric circuit and report to the police electric circuit and limit to flow a lamp bulb, and arrange in the high pressure of catch the rat place to output a linear electronics to catch a rat machine, high pressure creation electric circuit is press to commutate electric circuit, and in its exportation carry a conjunction have already provided to report to the police the establish of electric voltage of the electric circuit power supply to copular commutate a diode set.

该捕鼠器的特征是它包括盒体和安装在盒体内的高压产生电路、报警电路、限流灯泡，以及布置在捕鼠场地的高压输出线的电子捕鼠器，高压产生电路是五倍倍压整流电路，且在其输出端连接有提供报警电路电源电压的串联连接的整流二极管组。

The product has five serried and more than eighty specifications. The main products are electric hammer,electric planer, electric drill,circular saw,electric shears, impact drill,angle grinder,vertical grinder,electric floor sander,stone cutter,formed material culter,grass mower,electric lopping shears etc.the company attaches importance to improving product quality and service level.

公司已形成了以"光明"牌为主导的五大类八十多个品种的生产规模及销售网络，其中主要产品有：电锤、电刨、电钻、电园锯、电剪刀、冲击钻、角向磨光机、直向砂轮机、地板砂光机、石材切割机、型材切割机、剪草机、剪枝机等，并取得国家"CCC"认证、"ISO9002"质量体系认证，可提供"CE"、"UL"认证的产品。

These are widely used in: micro-wave oven transformer, three-phase electric power, low-voltage control transformer, machine tool control transformer, neon light transformer, rectifier in lamps, electric soldering machine, washer double thermoelectricity machine, rectifier, wide screen color degaussing turn, kitchen electric machine, magnetic mine choosing facility, auto spare part, motor car spare parts, electric motor car, and wire and cable, fan jar, inverted power source, UPS power source, water pump electric machine, air-compress electric machine, disk wire, and so on.

公司的主营业务为漆包圆铝线，漆包圆铜线，铜包铝线和裸铝丝的制造和销售，主导产品为220级聚脂复合聚酰亚胺漆包圆铝线、铜包铝线和裸铝线等，广泛应用于：微波炉变压器、三相电力变压器、低压控制变压器、洗衣机双热电机、整流器、大屏幕彩电消磁线圈、厨房电机、磁矿选设备、汽车备件及电线电缆等。

Both both me plant and international a dozen or more home in the front rank electric heater manufacturing company unfold recurrenting exchange visits exchange of know-how,per annum time after time head for abroad advance electric heater manufactory and look into ,study combine drink in abroad advanced industry electric heater manufacturing engineering AND production run, technical skill, electric heater dedication spare improve on technology, product replacement and update technology,take me plant industry electric heater product soever at variety type, kiln strain renewal, underpinning advancement, spare manufacturing engineering advancement, manufacturing engineering automation, loading pattern AND discharge basket manufacturing engineering approach, wds brasque power-saving technology, ceramic fiber wave stack normal height prick suspended ceiling technique, non-oxidation shielding gas atmosphere, carburize, nitride, salt bath, saltpetre salt austemper, precision heat treater art, flow equalization temperature equalization recuperation asymmetry oil quenching bath manufacturing engineering, microcomputer procedure heat treatment cycle curve control warm up grade spectrrm,in a position to and internationally advance industry electric heater manufacturing engineering held in.

我厂与国际十多家著名电炉制造公司开展经常性互访技术交流，每年多次前往国外先进电炉制造厂和研究所，学习并吸收国外先进的工业电炉制造技术和生产过程、工艺技术、电炉专用零部件改进技术、产品更新换代技术，使我厂工业电炉产品无论在品种类型、炉种更新、基础材料进步、零部件制造技术进步、制造工艺自动化、装料方式和装料筐制造技术方式、WDS炉衬节能技术、陶瓷纤维波浪叠法高压捆扎吊顶技术、无氧化保护气氛、渗碳、氮化、盐浴、硝盐等温淬火、精密热处理工艺、均流均温换热不对称淬火油槽制造技术、微电脑程序热处理工艺曲线控温等各个方面，能够与国际上先进工业电炉制造技术保持同步。

A hammer drill, in particular a chipper comprising: a body 2 having at least one support handle 4; an electric motor mounted within the body 2 ;an electric switch 22, capable of being switched on and off by a trigger button 8 connected to it, to activate or deactivate respectively the electric motor, wherein the trigger button 8 is moveable between two positions, a first position where the electric switch 22 is off and a second position where the electric switch 22 is on; a locking arm 38 moveably mounted on the electric switch 22 which, when the trigger button 8 is located in its second position, is moveable between two positions, a first position where it is disengaged from the trigger button 8 and a second position where it engages with the trigger button 8 and holds the trigger button 8 in its second position.

锤钻特别是錾，包括：本体(2)，该本体(2)具有至少一个支撑手柄(4)；安装在本体(2)内的电动马达；电开关(22)，该电开关(22)能够由连接到电开关(22)上的触发按钮(8)接通和断开，从而分别使电动马达启动或停用，其中该触发按钮(8)能够在两个位置即第一位置和第二位置之间移动，在该第一位置处电开关(22)断开，在该第二位置处电开关(22)接通；可移动地安装在电开关(22)上的锁紧臂(38)，当触发按钮(8)位于它的第二位置中时，该锁紧臂(38)能够在两个位置即第一位置和第二位置之间移动，在该第一位置处锁紧臂(38)与触发按钮(8)脱离，在该第二位置处锁紧臂(38)与触发按钮(8)接合并将触发按钮(8)保持在触发按钮(8)的第二位置中。

Professional Main Products are:(1) all kinds of electric locks Product Series: electromagnetic lock series, electric plug lock series, electric locking series lock series, hotel lock series, all kinds of special-shaped electric lock series;(2) sizes Intelligent Access Management Series: Single door machine, access control attendance machine, fingerprint access control machine, single-door two-way controller, two two-way controller, four one-way controller (communication mode may choose 485 or TCP / IP);(3) access control electric locks surrounding attachment Series: electric plug lock folder dedicated Frameless door, magnetic lock dedicated stent, the models go out button, a dedicated lock access control power supply, various types of access control card , EMID reader / issuer, and intercom access control system, a dedicated power lock delay.

专业主营产品有：（1）各式电锁产品系列：电磁锁系列、电插锁系列、电锁口系列、指纹锁系列、酒店锁系列、各式异形电锁系列；（2）大中小型智能门禁管理系列：单门一体机、门禁考勤机、指纹门禁一体机、单门双向控制器、两门双向控制器、四门单向控制器、（通讯模式均可选择485或TCP/IP）；（3）门禁电锁周边附件系列：电插锁专用无框门夹、磁力锁专用支架、各款式出门按钮、门禁专用锁电源、各类型的门禁感应卡、EMID读卡器/发卡器、对讲门禁系统锁延时专用电源。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。