查询词典 magnetic amplifier

This paper introduces the composition of the DC amplifier using a magnetic modulator in order to improve the property of the modulator,a discussion is held about the relation of its sensitivity to its size and its signalwinding,thus establishing the condition for obtaining maximum sensitivity.

介绍了磁调制式直流放大器的构成，围绕提高磁调制器的性能进行了讨论，给出调制器的灵敏度与其结构尺寸及信号绕组匝数之间的关系，并确定了获得最高灵敏度应满足的条件。

The output-input properties of the measurement system, power amplifier and active magnetic actuator when the linear, hamonic and rotating control signal respectly acts on, is investigated and measured.

在转子轴承实验台上，以实验的方法研究了转子振动主动控制系统各环节的输入输出特性以及电磁执行器在线性输入、谐波输入和旋转控制信号作用下的稳态响应特性。

The device includes on-chip Hall voltage generator for magnetic sensing, the error amplifier that amplifies the Hall voltage, a comparator that is to provide switching hysteresis for noise rejection, the bi-direction drivers for sinking and driving large current load, and the frequency generator thatprovides a signal proportional to rotation speed.

该器件包括片上大厅为磁场传感，误差放大器，放大的霍尔电压，比较器是提供切换噪音抑制滞后电压发生器，双向驱动的吸收和大电流负载，频率方向司机发电机提供了一个信号，转速成正比。

Companies to adopt international advanced industrial automatic placement machine assembly technology, integrated circuit manufacturing equipment, production of various series of infrared photoelectric switch, proximity switches, inductive, high temperature, capacitive, Hall sensors, safety explosion-proof magnetic switches, Isolation amplifier type, permanent-magnet sensors, analog linear displacement, liquid level sensors, textile weft detection device, wire break detector, hot metal detectors, welding phase sensor, color code, fiber optic, security screens, ultrasonic sensors, gear , speed sensor, pressure, electrode-type coal-bit sensors, rotary encoder, two-way cord running series switch, counter relays, solid state relays, switching power supply, isolation transmitter, welding power rectifier, thyristor modules, etc.

公司采用国际先进工业自动贴片机装配技术，集成化电路制造设备，生产各种系列红外线光电开关，接近开关，电感式、耐高温、电容式、霍尔式传感器，安全防爆磁性开关，放大器分离型、永磁感应器、模拟量线性位移、液位传感器、纺织探纬器、断丝检测器，热金属检测器，电焊相传感器，色标、光纤、安全光幕、超声波传感器，齿轮、速度传感器，压力、电极式煤位传感器，旋转编码器，双向拉绳跑编开关，计数器继电器，固态继电器，开关电源，隔离变送器，焊机电源整流桥、晶闸管模块等产品。

This reduces unwanted magnetic fields and eliminates the mechanical effects of magnetostriction vibrating the amplifier chassis.

这减少了不必要的磁场，并消除了磁致伸缩振动放大器的底盘机械效应。

Design of Phase-shift Power Amplifier for Control of Active Magnetic Bearing;2. A digital control of phase-shift circuit;3. Based on laser interferometer theory,Multi-wave interferometer by phase-shift ing method is applied on high-reflective coated optical flatness measurement.

本文以光干涉原理为基础，分析多光束干涉原理特点及其在平面形貌测量中应用可能，提出应用移相方法对被测镀高反膜表面进行调制，得到一系列被调制的干涉图样，经计算机对干涉图样进行自动采集和图像解包裹，获得被测表面的三维形貌数据，并通过实际测试验证了该方法的可行性和科学性。

Accordingly, we design a signal collecting system that can be used to collecting microseismic wave generated by a target moving on the ground, choose and improve on the magnetic-electronic seismic sensor that has high sensitivity and can sustain high loading, and design and make pre-amplifier and conditioning circuit which need micropower, and it can work continuously not less than 7 days.

在此基础上设计了运动目标引起的地震波的信号采集系统，选用灵敏度高、抗高过载的磁电式速度传感器，对传感器信号调理电路进行微功耗设计并调试，制作的微功耗地震动探测系统能够不间断正常工作7天以上。

In addition, the speaker voice coil skew, speakers deviate from the core or magnetic gap are all sorts of things, speaker cone deformation, fed to the power amplifier may also result in excessive distortion.

此外，扬声器音圈歪斜、扬声器铁心偏离或磁隙中有杂物、扬声器纸盆变形、放大器馈给功率过大也会造成失真。

A three level PWM amplifier was proposed in this paper to reduce the current ripple and to achieve the successful suspension of the magnetic bearing.

设计了一种性能优良的双向三电平PWM开关功放，实现了永磁偏置径/轴向电磁轴承的悬浮系统运行。

In the AMB system, a power amplifier which provides magnetic coil with exciting current to produce electromagnetic force, is one of the main components.

在电磁轴承系统中，功率放大器是向电磁铁线圈提供相应的控制电流以产生所需要的电磁力，对系统的特性具有重要的作用。

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。