前置信號 的英文怎麼說

中文拼音 [qiánzhìxìnháo]
前置信號 英文
advance signal
  • : Ⅰ名詞1 (在正面的) front 2 (次序在先的) first; top 3 (過去的; 較早的) ago; before; preceding...
  • : 動詞1. (擱; 放) place; put; lay 2. (設立; 布置) set up; establish; arrange; fix up 3. (購置) buy; purchase
  • : 號Ⅰ名1 (名稱) name 2 (別號; 字) assumed name; alternative name3 (商店) business house 4 (...
  1. Pre - data gathering module achieves the collection and communication of sixteen - route temperature signal. speed measuring and controlling module realizes the control of refolw soldering transfer speed by manipulating transducer. on - off outputting module fulfills calefaction control of calefaction tube by solid state relay. above position operator software programs by delphi, and realizes pid parameter automatic timing and no - oversnooting temperature control. software has friendly interface, convenient operation, complete functions

    數據採集模塊完成16路溫度的採集和通訊;速度測量模塊與速度控制模塊通過控制變頻器來調節迴流焊的傳輸速度;開關量輸出模塊通過固態繼電器對加熱管進行控制;上位機軟體採用delphi編程,實現了pid參數自整定以及無超調的溫度控制。
  2. Hi this thesis, the technique of detector array is used to obtain the location of anomalous infrasound, it is the basic of the study of prediction of earthquake. to derive useful information by using spectrum analysis on infrasonic signal. then combing with other methods a forecast could be made

    本課題主要是利用數字技術,採用用傳感器陣列計算異常次聲波波源的方位,這是今後預測震中位研究的提;並對次聲進行頻譜分析,提取有用的關于臨震次聲方面的息,再結合其他的預報方法,作出準確的地震預報。
  3. So it holds a ideal ability to anti - interference and has 2 scalar level resolution in location and measuring velocity than traditional radio induction technology. and the channel composed of the new radio induction system for communication is different from the parameter - constant channel and the traditional parameter - changing channel, its parameter is decided by the mutual induction between its antenna and induction - cable, by the location of its antenna, by the signal frequency passing through, its parameter has nothing to do with the time parameter. the channel composed of the new radio induction system is a new parameter - changing channel independently of time for communication

    而且,由新型無線感應系統組成的通道既不是恆參通道,也不是一般目所知的變參通道,其通道傳遞函數的幅值只與的頻率有關,與系統中天線和感應電纜之間的互感和天線的位有關,而與時間無關,其通道傳遞函數的相位只與天線的位有關,而與時間無關,由新型無線感應系統組成的通道是一種不隨時間變化的新型變參通道。
  4. Signal channel is composed of photodetection preamplifier and filter circuit, reference channel and correlation demodulator are realized by labview

    通道由硬體實現,包括光電探測放大電路及濾波電路;參考通道及相關解調器部分則利用labview軟體編程實現。
  5. Each time slot of the uplink frame contains a byte overhead, whose guard time is used to keep slight phase shifts from impairing the signal. the prepositive bit pattern is used for synchronization capture

    在上行幀的每個時隙里有位元組開銷,其防衛時間用於防止微小的相位漂移損害比特圖案則用於同步獲取。
  6. The measuring device cooperating with displacement sensors and prepositive device can monitor vibration signals including peek - peek value and average value etc. besides, it can auto - detect the distance that the sensor installed with and alarm if the interval exceeds the alarm value

    該測量儀與位移傳感器及器配合使用,能夠在線監測包括振動峰峰值和平均值等振動量,同時測量儀可以自動檢測傳感器安裝距離,在危險的情況下可以根據事先設定好的報警值進行報警。
  7. In the part of detector, it mainly introduces the design of liquor tubes, heater, pressurize, and thermocouple ; in the part of controller, this design uses tms320lf2407 as the cpu. the design part mainly introduces controller circuit design which mainly contains data collection circuit, prepositive magnifying circuit, a / d convert circuit, failure self - diagnosis circuit, the tms320lf2407 interface circuit, temperature control circuit, display circuit, 4 ~ 20ma standard signal output circuit ; in the software part, it mainly introduces software chart of main program and partly linearization subprogram design

    檢測器部分重點介紹了導流管的設計、加熱器的設計、密封技術的設計以及測溫電路的設計;控制器部分以tms320lf2407為核心,重點介紹了控制器電路設計,主要包括數據選擇電路、放大電路、 a / d轉換電路、故障自診斷電路、 tms320lf2407介面電路、控溫電路、顯示電路、 4 20ma標準輸出電路共八個部分;軟體設計重點介紹了主程序軟體設計及分段線性化子程序設計。
  8. The input signals pass through the prepositive circuit which transforming the measured signals ( voltage or current ) into small voltage signals, the signal adjust circuit consist of programmable - gain amplifier and filter, and digital signal processor tms320lf2407 for data acquisition and processing in turns. provide the measuring results on lcd module. and also can transfer data to the pc ’ s rs232 for farther analyse

    採用電路將被測(電壓或電流)變換為小電壓,經過調理電路對進行程式控制放大和濾波后,通過tms320lf2407實現的數據採集、息處理和計算,將測量結果通過液晶模塊顯示,還可經過rs232介面與計算機進行數據傳輸,做進一步的分析和應用。
  9. 9 inspect the amount, arrangement, fixing position of the signal equipment ( inspect all kinds of signal equipment according to “ navigation signal arrangement and mast structure drawing ” “ safe drawing ” ( such as signal light, signal shape things, signal flag, pyrotechnic signal, self igniting light of lifebuoy, sound signal etc ) whether satisfy finished plan, and check the qualified certificate of this equipment before and after installation on the ship

    設備的檢驗與試驗(按照《航行及桅桿結構圖》 , 《安全圖》 )檢查各種設備(如燈、形狀用品、旗、煙火、救生圈的自亮燈、聲音等)的數量、布、安裝位是否滿足設計的完工圖紙,並在安裝到船上之和之後檢查這些設備的質量合格證。
  10. Also, in prior years, adjustment of the signal-generator and torque-generator stator mechanical radial positions was required.

    些年對發生器和轉矩發生器定子的機械半徑位也要進行調整。
  11. By the result of these experiments, acoustic emission ( ae ) was chosen to use in the research. at the same time, we analyse the phenomenon of acoustic emission at the base of theory, the characteristic signal of acoustic emission which comes from the faulty bearing at the angle of application, and the expression of the characteristic signal. contrast was also made on the data achieved separately from vibrational signal and ae signal, and it is proved that ae is feasible and available to the diagnosis to the fault of the rolling bearing

    主要工作有如下幾方面:對本段期實驗室階段採用的振動法幅值域無量綱處理進行了分析,並研製了現場所使用的滾動軸承故障檢測裝,將無量綱參數診斷法應用於段修現場,且做了大量試驗;對于現場試驗中所出現的問題進行了分析,提出將聲發射的方法用於軸承的在線故障診斷;從理論上分析了聲發射現象,從應用的角度分析故障軸承的聲發射的特徵以及聲發射特徵的表示方法,並在實驗室中,採用振動法和聲發射法實時檢測的實驗數據進行了對比和分析,證明了使用聲發射法對軸承故障檢測的可行性和有效性。
  12. For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions

    針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機,本文提出一種基於六個離散位的自同步svpwm (電壓空間矢量法)控制方法,用以削弱電磁轉矩脈動,分析了實現這種方法的主要控制環節,包括起動時電壓空間矢量的初始定位,阻抗角與電流超角的合理選擇以及連續轉子位的估計等。
  13. In the part of the transmitter, the pre - amplifier logarithmic amplifier, temperature complement circuit, anti - disturbing circuit, and v / i circuit, are discussed. the transmitter outputs 4 - 20ma. in the part of the displayer hardware design, the i / v convert circuit and the flame intensity signal processing circuit are introduced

    在探頭的設計中,詳細介紹了對數放大器電路設計,在對數放大器加入了溫度補償電路和抗干擾電路,以保證測量精度和較大的量程,最後經電壓電流的轉換,得到4 - 20ma的標準作為探頭的輸出,進行遠傳。
  14. The effect of electrostatic force of the drive voltage on the accelerometer had been researched when the bias voltage polarity is positive - negative configuration

    人在研究驅動對傳感器的靜電力效應時,用偏電壓極性為正?負配的驅動進行研究。
  15. The thesis analyses the problems on the noise of apd photoelectric receiving system. author designs apd laser signal receiving system circuits, front amplify circuit, controlling time - series logic circuits, dc / dc transform circuits. and takes apd bias voltage fuzzy control

    分析了apd光電接收系統的噪聲問題,並對apd激光接收系統電路、放大電路、控制時序邏輯電路、 dc / dc變換電路進行了設計,採取了apd偏壓模糊控制。
  16. In order to obtain actual deformation amount, when the deformation amounts of tenon and mortise place of floorboards are changed, it mainly gather low frequency signal amounts after the fore - process device on the electricity eddy senses is deciphered, so as to offer references for measuring the deformation amount parameter of other kinds of floorboards

    該法主要通過採集電渦流傳感器中器解調后的地板榫接部位變形時的低頻值獲得其實際變形量,並為檢測其它種類地板的變形量參數提供參考。
  17. The system is based on the inner pid regulate function of frequency converter to regulate the living water stress with low constant stress, and the stress signal is sensed by the stress translator as feedback signal and the construction is sent by the computer as the given signal. the water stress is regulated to high constant stress when the fire happens

    本論文基於變頻器內pid調節系統,以管網的壓力變送器壓力作為反饋,由上位機發出的當狀態作為給定輸出,調節生活供水壓力使其保持低恆壓狀態;當火災發生時,調節系統管網壓力為高恆壓狀態。
  18. The basic principles still apply : ground impedance must be as low as possible, high level and low level signals must be separated so that they do not interfere with each other, and capacitance and mutual inductance coupling must be avoided

    文提到的原理仍然適用:地線阻抗要盡量小,大功率和微弱要分開布以避免串擾,一定要避免電容性耦合和電場耦合。
  19. During the heat accumulator supplying to users, the electric boiler usually try to make heat by starting at low price of electric and stopping at high. in general, the system of electric boiler with heat accumulator runs according to experience to utilize the time - of - use electricity price or controlled by the signals of water level or temperature

    運行的蓄熱式電鍋爐供熱系統中電鍋爐的啟停控制一般有兩種方式:一種是根據分時電價和用戶熱負荷由人工啟停,另一種是根據蓄熱器的水位或水溫由自動控制裝啟停。
  20. In this system, the closed loop is composed of velocity measurement machine used as velocity feedback and coder used as position feedback, the feed - forward signal of ship swaying is measured by rate gyro

    該系統用測速機構成閉環,作速度反饋,編碼器作位反饋,速率陀螺測量並饋艦船搖速度
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