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- Result Impedance blood flow of wrist, neck, brain and so on were detected with high SNR and simple manipulation by continuously applying phase sensitive demodulator technique. 结果经过实验验证，该仪器能够提取手腕、颈、脑等部位的阻抗血流信号，应用相干检测技术得到了很高的信噪比，测量方便，可以进行连续监测。
- Intense electromagnetic interference while drilling prevents traditional analog phase sensitive demodulation(APSD) from correctly acquiring electromagnetic wave signal of logging while drilling(LWD). 钻进时产生的强烈电磁干扰使传统的模拟相敏检波(APSD)方法无法准确获取随钻测井的电磁波信号。
- Keywords blood flow;electrical bio-impedance;phase sensitive demodulator;exercise load; 血流;生物电阻抗;相敏检测器;运动负荷;
- Keywords electrical impedance plethysmography;tissue blood flow;pulsatile components;nonpulsatile components;miniature electrodes;phase sensitive demodulator; 电阻抗血流图;组织血流;搏动分量;非搏动分量;小型电极;相敏检测器;
- phase sensitive demodulator 相敏解调器
- Keywords logging while drilling（LWD）;logging tool;electromagnetic propagation resistivity logging;digital phase sensitive demodulation（DPSD）; 随钻测井;测井仪;电磁波传播电阻率测井;数字相敏检波;
- phase sensitive detector demodulator 相敏检波解调器
- Phase sensitive demodulation 相敏检波
- phase sensitive demodulating 相敏检测
- Objective To research on the feasibility and significance of the phase sensitive method in quantitive T1 meas-urement . 目的研究相位敏感方法应用于T1定量测量的可行性及意义。
- It is a special power supply equipment designed recently for phase sensitive track circuit in AC electrified railway. 该新型25赫小站电源屏是我厂最新研制的交流电气化区段站内相敏轨道电路的专用供电设备。
- Experimental results show that the analog circuit for phase sensitive detection can effectively suppress noise. 实验结果表明，模拟相敏检波电路具有良好的噪声抑制能力；
- Methods The phase sensitive method was used to remove the phase errors and restore the polarity of theinversionrecovery data . 方法采用相位敏感方法消除相位误差,保存反转恢复序列中磁化矢量的极性。
- We are using a Ti : sapphire laser and a high frequency phase sensitive lock-in loop to achieve time-resolved the dynamics properties of the light emitting devices. 使用钛:蓝宝石锁模脉冲雷射、高频相位灵敏锁向迴路与雷射共焦扫描显微镜以取得发光二极体之时间解析动态特性。
- Newly developed semi automatic grinding wheel balancer for precise grinder detects unbalance vibrative signal by digital phase sensitive detection technique. 介绍新研制成功的精密磨床砂轮半自动平衡仪。
- Employing a liquid crystal modulator and CCD camera, a phase sensitive images system has been investigated experimentally for various fluorescence lifetimes. 利用液晶调制器和ccd探头组成的荧光相位成像系统，实现了不同荧光寿命物体的荧光成像，时间分辨率达到了亚毫秒量级。
- The effect of phase-shift between pumping and signal light on the transmission performance of dynamic-soliton system using phase sensitive amplifier (PSA) as on-line amplifiers is theoretically analyzed by computer simulation. 摘要采用计算机系统仿真方法，研究抽运光与信号光之间的相位漂移对在线放大器为相敏光放大器的动态孤子传输性能的影响。
- Aimed at long detection distance and heavy noise disturbance in the long-distance-coefficient infrared thermoscope, a new digital phase sensitive detection method for weak signal was proposed. 摘要针对大距离系数红外测温仪测温距离远和噪声干扰大的特点，提出一种微弱信号数字相敏检测方法。
- Use ear perception of voice spectrum component of the phase sensitive to the characteristics of such speech enhancement algorithms targeted at the rate of short-term spectral estimation. 利用人耳感知对语音频谱分量的相位不敏感的特性，这类语音增强算法主要针对短时谱的幅度估计。
- Aimed at long detection distance and heavy noise disturbance in the long-distance-coefficient infrared thermoscope,a new digital phase sensitive detection method for weak signal was proposed. 根据相关检测原理,设计了由模拟开关和低通滤波器组成的模拟相敏检波电路,并对此电路的噪声抑制特性进行了分析。
