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- It is a special power supply equipment designed recently for phase sensitive track circuit in AC electrified railway. 該新型25赫小站電源屏是我廠(chǎng)最新研制的交流電氣化區段站內相敏軌道電路的專(zhuān)用供電設備。
- Test on Multi-path High Sensitivity Track Circuit by Microco mputer 用微機實(shí)現多路高靈敏軌道電路的測試
- Experimental results show that the analog circuit for phase sensitive detection can effectively suppress noise. 實(shí)驗結果表明，模擬相敏檢波電路具有良好的噪聲抑制能力；
- Though there is no train is occupying the overlap track circuit. 雖然沒(méi)有火車(chē)占領(lǐng)交疊軌道電路。
- 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應用于T1定量測量的可行性及意義。
- Track circuit Trackside device used for track free/occupied determination. 軌道電路用于軌道空閑/占用檢測的軌旁設備。
- 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誤差,保存反轉恢復序列中磁化矢量的極性。
- 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. 使用鈦:藍寶石鎖模脈沖雷射、高頻相位靈敏鎖向迴路與雷射共焦掃描顯微鏡以取得發(fā)光二極體之時(shí)間解析動(dòng)態(tài)特性。
- Newly developed semi automatic grinding wheel balancer for precise grinder detects unbalance vibrative signal by digital phase sensitive detection technique. 介紹新研制成功的精密磨床砂輪半自動(dòng)平衡儀。
- The jointless track circuit is an advanced control system which is used tocontrol the trains. 無(wú)絕緣軌道電路是一種先進(jìn)的列車(chē)控制系統。
- 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. 結果經(jīng)過(guò)實(shí)驗驗證，該儀器能夠提取手腕、頸、腦等部位的阻抗血流信號，應用相干檢測技術(shù)得到了很高的信噪比，測量方便，可以進(jìn)行連續監測。
- Employing a liquid crystal modulator and CCD camera, a phase sensitive images system has been investigated experimentally for various fluorescence lifetimes. 利用液晶調制器和ccd探頭組成的熒光相位成像系統，實(shí)現了不同熒光壽命物體的熒光成像，時(shí)間分辨率達到了亞毫秒量級。
- The research results may provide some references for the design of ballast-less track and the research of adoptability of ballast-less track on joint-less track circuit. 本文的研究結果對于進(jìn)一步開(kāi)展無(wú)碴軌道的設計和無(wú)碴軌道對無(wú)絕緣軌道電路適應性研究具有一定的指導作用。
- It was based on ZPW-2000A Jointless Track Circuit Frequency-shift Automatic Block System,which was widely used in our country’s railway sections. 基于我國鐵路區間廣泛使用的ZPW-2000A無(wú)絕緣移頻自動(dòng)閉塞制式,利用計算機仿真技術(shù)對區間的部分設備及功能進(jìn)行了模擬。
- The working principle of track circuit in Chongqing mono rail was introduced in this paper. It also elaborated the role that track relay played in ensuring fail safety. 介紹了重慶單軌交通軌道電路的工作原理,對軌道繼電器為保證故障安全所起的作用進(jìn)行了闡述。
- 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. 摘要采用計算機系統仿真方法，研究抽運光與信號光之間的相位漂移對在線(xiàn)放大器為相敏光放大器的動(dòng)態(tài)孤子傳輸性能的影響。
- This paper introduces the working principle of high -sensitivity track circuit and the scheme of testing multi-path high-sensitivity track circuit by microcomputer. 介紹了高靈敏軌道電路基本原理以及用微機實(shí)現多路高靈敏軌道電路測試的方案和具體方法.
- 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. 摘要針對大距離系數紅外測溫儀測溫距離遠和噪聲干擾大的特點(diǎn)，提出一種微弱信號數字相敏檢測方法。
- Owing to the impact of steel networks in ballast-less track, the equivalent impedance of rail track may be changed and the length of track circuit may be shorted. 但是,無(wú)碴軌道中縱橫交錯的鋼筋網(wǎng)絡(luò )將會(huì )使鋼軌等效阻抗發(fā)生變化,從而使軌道電路長(cháng)度縮短。
- 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. 利用人耳感知對語(yǔ)音頻譜分量的相位不敏感的特性，這類(lèi)語(yǔ)音增強算法主要針對短時(shí)譜的幅度估計。
