信号是信号电源是电源。
pm 52用途议长线信号电源，并使用无电池。
The PM52 USES the speaker line signal for power, and USES no batteries.
装置由恒流信号电源和信号检测装置两部分组成。
The localizer is composed of two parts:a constant current constant frequency signal source and a signal detector.
铁路信号电源是保证列车安全正常运行的关键设备。
The railway signal power is the key device to ensure safety and normal performance of the train.
铁路信号电源是保证列车安全正常运行的关键设备。
The railway signal power supply is the key device to ensure the safe and normal operation of the train.
本文以铁道信号电源为背景，研究了一种单极性调制的逆变电源。
Based on the power supply for railway signal system, this dissertation investigates an inverter controlled by the strategy of unipolar modulation.
介绍了BE-6型信号电源跟踪监测装置的功能、工作原理及工作过程。
The functions, working principles and working procedure of BE 6 monitoring device for signalling power are introduced in this paper.
介绍了双路信号电源监测装置的工作原理、实现方法、主要功能与抗干扰措施。
This paper introduces the working principle, realizing method, main functions and anti-intrusion measures of two-way signal power supply monitoring and failure logging devices.
本文介绍了一种铁路信号电源屏的监测系统的硬件组成部分及其具体的实现方法。
This paper introduce an inspect system of railway-singal-distributer, it introduce the hard form of the system and its realization.
接口信号电源控制器与计算机的853数码允许控制器真正应用定制任何工业加热。
Interfacing the 853 digital signal power controller with a computer allows the controller to be truly customized for any industrial heating application.
较为详细地介绍了我国铁路信号电源屏存在的主要问题，并分析了产生问题的原因。
The problems about railway signal power supply panel in China are dealt with in details, and reasons are analysed.
实验结果表明本信号电源工作稳定、频率变化范围大，同时具有良好的动静态性能。
Test results show that the signal power supply has good stability, wide frequency range and good performance.
感应调压器目前广泛运用于铁路信号电源屏中，它对铁路信号的正常运行有着不可替代的作用。
Inductive voltage regulator is widely used in the railway signal power supply at present and playing a non-fungible role in normal operation of railway signal.
本文的信号电源就是变频电源在测试领域的应用，本文就信号电源的核心逆变器部分做了详细的分析和设计。
The signal power supply that this thesis proposed is a frequency variable power source used in test field. This thesis concentrates on analysis and designing the nuclear part: Inverter.
文章最后介绍了智能双电源电子快速切换系统在铁路信号电源中的应用，设计目标均已达到，实际使用效果良好。
The real apply instance of double power auto switch system is introduced. The purpose of the design is reached.
铁路信号电源系统是专门给列车运营信号供电的，其可靠性要求非常高，因此，对铁路信号电源的监视和控制十分重要。
Railroad signal power system is a special supply power source for train running. The high reliability is required. Thus, its supervisor and control become very important.
这将有利于下一代高动态范围的混合信号技术和RF高频电源技术。
This will enable the next generation, high dynamic range mixed signal technology and high frequency RF power sources.
轮廓调制结合了一种相位调制信号的波形和放大器的输出阻抗，可在某个较大型输出电源关闭后保持更高的效率。
Contour modulation is a technique in which a phase-modulated signal waveform and amplifier output impedance work together to maintain higher efficiency over a sizable output power back-off.
太阳能产生的电力主要用于照明、信号、车内电源等铁路基础设施的电源供给。
The electricity produced feeds into the line's infrastructure, for lighting, signals and in-train power points.
这颗卫星上装有无线电收发设备和电源，可对信号接收、处理、放大后再发射，从而大大提高了通信质量。
Telstar is launched as the first "active" communications satellite—active as in amplifying and retransmitting incoming signals, rather than passively bouncing them back to Earth.
powerfail：只在init收到电源故障信号时执行命令。
Powerfail: Only execute the command if init receives a power fail signal.
powerwait：只在init收到电源故障信号时执行命令，并且等待进程终止后再继续扫描inittab文件。
Powerwait: Only execute the command if init receives a power fail signal, and wait until the process terminates before continuing to scan the inittab file.
直到最近环境无线电波才格外受到重视成为一种潜在的电源，这是因为广播电台的无线电信号发电随着距离的增加而锐减。
Ambient radio waves have largely been ignored as a potential power source until recently, because the power of a broadcast radio signal rapidly decreases with distance.
概述了控制系统的电源电路、驱动电路、显示电路与软件设计及信号采集的方法。
The power supply circuit, driving circuit, display circuit, software design and signal collection of the control system are outlined.
管线的信号和电源为分开，虽然是弱电，但是严格要求是必须强、弱电线管分开敷设。
Pipeline signal and power supply for the separation, although it is weak, but strict requirements must be strong.
该模块解决了对差分信号“调制”、“解调”问题，实现了数据和电源在同轴电缆上的同步传输。
It solves the problem of modulate and demodulation of differential signal and achieve data and power signal communication in coaxial-cable.
其输出的基准信号稳定，与电源电压、温度以及工艺的变化无关。
Reference source outputs a stable reference signal which is independent of power supply voltage, temperature and process.
热切换：当数字信号被切换时，任何时间长度的电源中断都会使其改变状态。采用热切换可防止数字状态变化。
Hot switching: When digital signals are being switched, they may change state with any length of power interruption. Using hot switching prevents digital state changes.
这要求我们更加依赖于对信号及电源问题的高速度高精度分析手段。
Now we depend on signal and power analytical method with high speed and high precision more and more.
这要求我们更加依赖于对信号及电源问题的高速度高精度分析手段。
Now we depend on signal and power analytical method with high speed and high precision more and more.
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