查询词典 electromagnetic

Gordon Electric Ltd. is a joint professional development, development, production and sale of electromagnetic relays, automotive relays and magnetic self-perpetuating relay, as well as a variety of electronic hardware fittings of high-tech enterprises, factories located in coastal modern international port city - Shenzhen.

高登电器有限公司是一家合资的专业研制、开发、生产和销售电磁继电器、汽车继电器和磁保持继电器，以及各种电子五金配件的高新技术企业，工厂座落于沿海现代化国际港口城市--深圳。

According to the characteristic of 3-D loom in existence, leading-yarn needle and crochet hook is designed in the selvedge apparatus to realize the selvedge by using the knitting method. They are all driven by high pressure air cylinders with different models, which are chosen based on the demand of various moving parts. The apparatus element is controlled by electromagnetic valve, so it can syncretize very well with the loom.

根据现有织机机构特点，边部机构中设计了引纱针与钩边针配合运动来实现针织锁边，这两部分装置都采用气动驱动，气缸型号根据机构的要求和条件选择，执行元件均由电磁阀控制，与织机整体很好地融合在一起。

Its main features are : the use of electromagnetic valves and electrical control system for sequential control, and central control system compatibility, a high degree of automation.

其主要特点是：采用电磁阀与电器控制系统进行顺序控制，与中央控制系统兼容，自动化程度高。

Making use of the change criteria of curl current during the dynamic movement of DC electromagnetic mechanism,the sequential logic model was optimized.Based on arcless switching circuit,the working time and heat of power electronic device was greatly reduce...

利用直流电器电磁机构动态过程中线圈电流的变化规律，优化了继电器的时序控制模型，在系统无弧通断电路的前提下，大大缩短了电力电子器件的工作时间，进一步减小发热，并通过实验验证。

But in the situation of electromagnetic interference, it may fail the operation of electro-fluid servosystem.

但电伺服系统存在着电磁干扰问题，甚至导致操作失灵，这是至今未得到很好解决的问题。

So we designed a adaptive synchronizing controller based on hereinbefore hardware environment: first a small magnitude reference signal r is outputted to system through the signal card (to ensure that the vibrating system works in a linear state), and this signal is sent to the moving coil of vibrator through the power amplifier, so vibration is produced through electromagnetic induction. Secondly the vibration signal can feedback to the data acquiring card in the servo system through the acceleration sensor on the Vibroseis reactor M〓 and the base-plate M〓, then the computer can get the current vibrating state y〓 of the coil of vibrator according to the feedback information from the data acquiring card, and give a real time comparing between the current state y〓 and the reference output y〓 of the set-in reference model with current reference input being r , then regulates the correlative controlling parameters according to the error e〓=y〓-y〓 till y〓→y〓, finally normal signal sweeping begins with a certain phase fixed. Meanwhile a synchronization signal for seismic signal record is sent to seismograph from synchronization signal outputting component in the Vibroseis system to perform the controlling process of synchronization of sweeping phases.

为此，我们基于以上的硬件环境设计了一个自适应同步控制器：首先通过信号发生卡对系统输出小幅度的参考信号r(从而保证振动系统工作处于线性状态)，信号通过前置放大器、功率放大器等送到激震器动圈，并通过电磁感应产生振动，振动信号通过可控震源激震器反应块M〓和基板M〓上的加速度传感器反馈给伺服系统中的数据采集卡，工控计算机根据采集卡的反馈信息，获取当前激震器动圈的振动状态y〓，并实时地将该状态与内置的参考模型在当前参考输入r下的参考输出y〓进行辨识，再将两者输出误差e〓＝y〓-y〓对系统的有关控制参数进行调整，直至y〓→y〓，最后在经过某一固定的相位后，开始信号的正常扫描过程，与此同时，由可控震源系统的同步信号输出部件向地震仪送出一地震信号记录同步信号，进而完成扫描相位同步控制过程。

A numerical method in time domain on skin current of ground laying shielded cable excited by electromagnetic pulse is studied.

为克服传输线理论方法求解电磁脉冲电缆耦合问题存在的不足，对电磁脉冲电缆耦合问题进行了时域求解方法的研究。

The method is used to simulate the distribution of a skin current and characteristics of waveform on a ground laying shielded cable excited by the electromagnetic pulse.

计算与实验结果在误差范围内的一致性证明了数值结果的可靠性，以及该时域计算方法在处理电磁脉冲电缆耦合问题的可靠性。

Study of numerical method in time domain on a skin current of ground laying shielded cable excited by electromagnetic pulse.

电磁脉冲作用下地面铺设屏蔽电缆蒙皮电流分布的时域计算方法研究。

By using this method, we compute the shield and core wire response of a shielded cable under the influence of external transient electromagnetic field.

此外，本文还提出了一种适用于电力系统屏蔽电缆转移阻抗的准确测试方法，该方法具有简单、易实施的特点。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。