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But since then, detector sensitivity has improved 1,000- fold, and instrument builders expect soon to wring out another factor of 1,000. 即使是当时最佳仪器的灵敏度，与测得假定的暗粒子所需的灵敏度相比，仅及1/1000。
The essential blocks of the synthesizer, the prescaler, the phase detector, the chargepump, and the voltagecontrolled oscillator were presented. 提出了合成器的基本模块，包括预分频器，鉴相器，充电泵和压控振荡器。
The BG34 filter, for example, reduces the intensity of light at600 nm from a tungsten halogen bulb while transmitting all of the light at the blue and red regions, where detector sensitivity is lower. 例如，BG34滤光片可以将钨灯发出的600微米波长的光的强度降低，而让蓝光和红光区域的光通过，探测器在这些区域的灵敏度较低。
In this scheme,the synthesizer contains a low-noise phase detector to achieve the performance of low phase noise and low spur level. 本方案采用了低底噪鉴相器,实现低相噪和低杂散指标。
Its coder phase detector is proved for lts normal operation during drum imitation test and signal of coder works with no errors. 在模拟钻机滚筒振动试验中,验证了设计的鉴相电路工作正常,编码器测量信号未发生误计数现象。
Analysis of the Optical Smoke Detector Sensitivity 光学烟雾探测器灵敏度研究
This thesis presents a circuit architecture to realize clock recovery for fast Ethernet application, including system architecture, modified Mueller Muller algorithm for 100BASE-TX, phase detector for 100BASE-FX and multiple output charge pump PLL. 提出了一种快速以太网卡芯片时钟恢复电路的设计 ,包括体系结构、用于 10 0BASE tx的改进MuellerMuller算法、用于 10 0BASE FX的鉴相器以及产生多相时钟的电荷泵锁相环。
This paper analyses survey principle of 1532 dielectric log tool,and analyses circuit amplitude detector and phase detector in 1532 dielectric log tool. This paper focuses on dual gate MOSFET and photocoupler for AGC,SCI and FB for noise reduction. 文章介绍 15 32型介电测井仪的测量原理 ,并分析了 15 32型介电测井仪的幅度测量系统和相位测量电路 ,以及用于自动增益控制 (AGC)的双栅极场效应管和光耦合器 ,以及用于抑制噪声的穿心电容器和铁氧体磁珠
The system s transfer function is analyzed, especially the one of the filter which is connected between VFD and the phase detector, and it should be established on the group delay concept. 根据功能,认为变频器输出电压滤波器的传递函数需要使用群时延概念,为更精确地分析这类问题提供了依据。
The mathematic module of the PLL was built and the sub-circuit such as Phase Detector(PD),Charge Pump(CP),Loop Filter(LF) and Voltage Control Oscillator(VCO) was designed cautiously. 主要包括：研究了该锁相环系统建模，完成了鉴相器(PD)、电荷泵(CP)、环路滤波器(LF)以及压控振荡器(VCO)子电路设计。
At visible wavelengths the ring shows up clearly enough, but it is invisible to a detector sensitive to infrared light. 在视光范围内,光环清晰可见,而在不可见光波段,灵敏的探测器可以观测到它的红外线光。
Design of Power Frequency Digital Phase Detector 工频数字式相位检测仪的设计
frequency multiplier and phase detector 倍频鉴相
We provide RF assemble as well, including power splitters, amplifiers, phase detectors, attenuators, synthesizers, multiplexer and radar receiver subassemblies for RF application. 射频组件包括功分器，放大器，鉴相器，衰减器，频综，倍频组件，雷达接收组件等。
In chapter two, design considerations of DLL are introduced. Some commonly used circuits of the phase detectors, charge pump, and voltage-controlled delay cells are classified. 在第二章中，延迟锁定迴路的设计考量将会被提出。一些常用的相位侦测器、充放电泵及电压控制延迟单元电路也将分类说明。
Equivalent Energetic-spectrum Method for Digital X-ray Detector Sensitivity Correction 射线数字探测器灵敏度校正的等效能谱法
The child is going through a difficult phase. 那孩子正经历困难的阶段。
High precision digital phase detector based on inner product theory 基于矢量内积法的高精度数字相位差计
The two sets of traffic lights were out of phase. 那两组交通灯不同步。
New Phase Detector with Fast Response and Without Ripple 具有快速响应和无纹波输出的新型相位检测器