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信号装置

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It is a kind of electromagnetic mechanical device turning dispersed electric pulse signal into corresponding angle displacement or line displacement to Electric motor which by stepwise, it is one introduction that output pulse corresponding increment drive component.

步进电动机是一种将离散的电脉冲信号转化为相应角位移或线位移的电磁机械装置,它输出的角位移与输入的脉冲数成正比,是一种输入与输出脉冲对应的增量驱动元件。

As the study shows, the signal of recoil velocity is selected by the velocity sensor, then the electric current of magnetic liquid buffer is confirmed through the contrast and calculation of the control system, and the movement resistance is adjusted by changing the viscosity of magnetic liquid medium, so the velocity fluctuation of bolt is reduced effectively.

研究结果表明,通过枪管速度传感器,采集发射时的后坐速度信号,经控制系统的对比和解算,确定磁流体缓冲装置的励磁电流,改变磁流体介质的动力粘度,调节自动机运动阻力,可以有效地减小自动机前冲击发速度的波动。

In 1945 Percy Lebaron Spencer, an American engineer and inventor, was busy working on manufacturing magnetrons , the devices used to produce the microwave radio signals that were integral to early radar use.

1945年,美国工程师与发明家斯宾塞正忙着制造磁控管,这种装置能发出早期使用雷达所必需的雷达微波信号。

Features of the TCM-03: Highly sensitive audio frequency amplifier Tuneable low frequency radio receiver Digital display meter Integral tone generator Isolated DC power output 详情请查阅www.baomi.com.cn

这些特点使之能够检测从微伏到伏特的所有类型的麦克风及其它窃听装置线路信号,包括直流与交流电源线和电话线。

The linear motion of the wire rope is rurned into the rotational movement of the puley by the sensor mountedin ffont of the drum,and the linear displacement of the wire rope is turned into pulses by the optical coupler,then thd measurment in conideration of the complexity of running tubings.

智能计量仪主要由传感器、有效计量鉴别器、分析计算系统和电源四部分组成。通过安装在滚筒前的传感器将钢丝绳的直线运动转化为摩擦轮的旋转运动,以光电转换装置将钢丝绳的线位移量转换为长度脉冲信号输送到单片机显示输出。

There are oil gauge, oil-water meter, electric heater and air cleaner in oil boxes.

油箱有液位和油积水信号显示装置,并装设电加热器和空气滤清器。

In this paper a practical main circuit is presented which can meet the need of phase splitting, grading and fast compensation.

给出了以工业PC机为核心的控制器的硬件电路、快速检测无功的方法、晶闸管触发信号的控制要求,以及补偿装置的闭锁条件,解决了控制器应满足实时检测、快速响应和高可靠性等实际问题。

The principle of the novel single-phase hybrid active power filter is described in detail. Based on the above analysis, Kalman filtering approach for estimation of harmonics is presented to improve the speed and precision of harmonic detection, and it also can avoid the influence made by voltage distortion on harmonic detection. A new current control strategy based on energy balance is presented to regulate the active part absorbing or releasing active power and control the inverter to produce current opposite to the harmonic current reflowing in injection branch, the above method combined with harmonic current tracking control that keeps the stabilization of dc-side voltage and improve the reliability of the system.

并详细分析了系统的滤波原理,提出了基于卡尔曼增益自调整的改进型动态谐波含量估计方法,能够快速准确的跟踪检测电网谐波电流,并且克服了电力机车等冲击性负荷引起的电网电压畸变对谐波检测精度的影响;提出了基于逆变器两侧能量平衡的电流控制方法使有源部分吸收或释放一定有功或无功功率及产生与注入支路回灌谐波电流相反的抑制电流,然后联合电网谐波电流跟踪控制以获得系统参考信号,保证了直流侧电压的稳定,提高了装置可靠性,增强了系统滤波性能。

The disclosed stripline resonator comprises two parallel metal ground plates 4, an inner conductor 5 between two plates 4, a metal short-circuit board 6 connected to with two ends of plate 4, and two coupling loops 7 on proper position of connected part of plate 4 and conductor 5 for input/output of microwave signal.

一种带状线谐振器及微波薄膜材料电磁参数测试装置,属于微波测试技术领域。带状线谐振器包括金属接地板4、内导体5、金属短路板6和耦合环7等四个部分,所述两块相互平行的金属接地板4的两端分别与金属断路板6连接,内导体5处于两块金属接地板4的中间,其中一块金属接地板4与内导体5相连的上下方的适当位置具有两个耦合环7,以实现微波信号的输入和输出。

This paper brings forward new method on measuring the plate current density of ESP and introduces each parts of the measuring device such as the transforming of I/O, the magnification of pressure code, the transforming of A/D, the interface circuit, the data receiving method of computer and etc.

本论文就电除尘器的板电流密度的测试提出了新的方法,并就测试装置的各组成部分,如:I/V转换及电压信号的放大、A/D转换及接口电路、微机对数据的接收方法等作了详细的说明。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?