noise voltage 中文意思是什麼

noise voltage 解釋
噪聲電壓
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • voltage : n. 【電學】電壓，電壓量，伏特數。 the working voltage （電氣的）耐壓限度。
  1. In the sub block circuit design, the contents that the author had introduced include : the principle of band gap voltage reference and the design technique in low power supply ; the analysis of spike pulse noise rejection, frequency divider and dead time in oscillator and control circuit ; the selection of the width and length ratio of four switches and 2x / 1x mode change point in driver and mode selection circuits

    在子電路設計中，作者比較深入分析的內容有:基準電路的原理及低電源電壓下基準電路的設計;振蕩器和控制電路中尖峰脈沖噪聲抑制、兩分頻電路及死區時間設定;驅動及模式選擇電路中開關管的寬長比的選擇及模式轉換點的設計。
  2. Johnson noise voltage

    熱噪聲電壓
  3. A novel bi - directional dc / dc converter was introduced in the dissertation, which based on refer much converter data. the soft switching, phase - shifted pwm and bi - directional dc / dc converter hang together, depress circuit switch ullage and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same, the converter have the virtue of structure compact, voltage and current stress small etc such as ordinary hard switch converter

    本文作者在查閱國內外大量雙向dc dc變換器資料的基礎上，採用一種新型雙向dc dc變換器的拓撲結構，把軟開關技術和移相控制pwm技術以及雙向dc dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件。
  4. Since the industrial frequency transformer fulfills the boosting voltage part, most of the inverters have such drawbacks as larger size, more weight and bigger ac noise

    目前，大多數戶用光伏逆變電源產品存在著體積、重量、交流噪音大等不足之處，原因在於升壓環節由工頻變壓器實現。
  5. With the development of power electronics technology and devices in recent years, instead of using the industrial frequency transformer to boost voltage, dc / dc high frequency converter achieves the function. the system has higher power density and conversion efficiency, and the size, weight, ac noise of which has been greatly reduced

    近年來，隨著電力電子技術與器件的迅速發展，使用dc dc高頻變換技術代替工頻升壓，系統具有較高的功率密度與轉換效率，裝置體積、重量與交流噪聲大大減小。
  6. As the microbolometer which is voltage biased express some characters different from other infrared detectors under the effect of electric heat and infrared radiation together, the computing method of parameters, such as responsivity, noise, noise equivalent temperature different ( netd ), noise equivalent power ( nep ), optical gain, detectivity and so on is given in this paper. some of these parameters are particular compared with other detectors, and some have difference between microbolometer and other detectors

    由於微測輻射熱計在施加偏置電壓的情況下，電熱效應與紅外輻射的共同作用使它表現出與其他紅外探測器完全不同的一些特徵，文中給出了響應率、噪聲、噪聲等效功率、噪聲等效溫差、光學增益、探測率等參數的計算方法，這些參數中的部分是微測輻射熱計獨有的，或者與其他的紅外探測器的同一參數有所區別。
  7. The experimental results showed that the substrate of pyroelectric sensor could significantly affect the detectivity. the porous silicon dioxide and pet plastic film substrate could effectively decrease the thermal conduction and the thermal fluctuation noise of the pyroelectric element, increase the voltage responsivity and the detectivity obviously

    結果表明，多孔氧化硅和pet塑料可有效降低熱釋電元件的對外熱傳導，明顯提高傳感器的電壓響應率和降低熱釋電元件的熱噪聲。
  8. To resolve the situation that the sensitivity of present ground fault protection schemes is low for the large - sized hydro - generators, a kind of protection scheme based on the fault component of third - harmonic voltage and two kinds of protection scheme based on the fault component of zero - sequence voltage at the terminals and neutral are developed, and they can obtain higher sensitivity and reliability and provide 100 % protection for the stator windings. the influence of noise on the stator ground fault protection based on the local modulus maximum of wavelet transform is analyzed

    針對目前大型水輪發電機定子繞組單相接地保護靈敏度偏低的問題，通過分析單相接地故障后機端和中性點零序電壓的變化特點，提出了一種基於機端和中性點三次諧波電壓故障分量和兩種基於機端和中性點零序電壓故障分量的高靈敏度、高可靠性保護方案，並實現定子繞組的100 %保護。
  9. The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter

    該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。
  10. Chaotic switching modulations introduce low - frequency harmonic spectrum of output voltage as random switching modulation. in some case, low - frequency noise ripple offset the effect chaotic switching modulations reduce the level of emi. it indicates that the ccfmfd integrates the advantages of spreading harmonic power at the multiples of the switching frequency and not introducing significant noise ripple at low - frequency range. among all chaotic switching modulations, the ccfmfd is considered as the best choice in applying to dc / dc converter

    與隨機調制模式相同，混沌開關調制模式也引入輸出低頻噪聲紋波，有些情況下低頻噪聲紋波可能抵消混沌開關調制降低emi水平的效果。分析表明： ccfmfd模式具有較好的降低emi水平和引入較小低頻紋波的優點，可以作為混沌調制模式較佳的選擇。
  11. The series genrating set combination of single and three phase brushless generator 、 control panel 、 common base produced by liuzhou jiali electric manufacturing co. ltd and engine produced by nanning machine factory ( abbreviation : nanji ) 、 changzhou engine co. ltd ( abbreviation : changfa ), which appears small size 、 light in weight 、 easy to start 、 low in fuel consumption and noise production with stale voltage and frequency output. it is an ideal power supply for banks 、 post office 、 public places of entertainment 、 households and pasturelands, so on

    本系列機組由柳州佳力電力電工有限責任公司生產的單相無刷發電機、控制箱及公共底座與南寧機械廠（簡稱南機） 、常發集團（簡稱常發）等柴油機廠生產的柴油機組成，具有穩定的電壓和頻率輸出及體積小、重量輕、啟動方便、油耗低、噪音低等特點，充分地體現了高性能、高質量發電機所應具備的要素，是銀行、郵局、娛樂場所、家庭及牧場等的理想電源。
  12. This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller

    本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。
  13. It ' s high - frequence noise absorption, absorption of noise caused by rapid rise of front and self - reset function have widespread application in imput of supply, for absorption of inductive load switching surge voltage and for protection of two - way thyristor switching device, bypass capacitors, micro - machines and the others

    它所具有的吸收高頻噪聲、前沿快脈沖上升噪聲及自復位功能，使其在電源輸入端、吸收電感性負載開關浪涌電壓、保護雙向可控開關器件、旁路電容器、微型電機等方面有著廣泛的用途。
  14. 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激光信號接收系統電路、前置放大電路、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。
  15. Noise margin refers to the maximum noise voltage that can be added to the generated signal in a digital circuit before an undesirable change is caused in the circuit output

    噪聲極限就是指可以加在數字電路的正常信號上，而又不對正常輸出造成危害的最大噪聲。
  16. These initiatives include major developments of power plant flue gas desulphurization and low nox combustion system, novel monitoring systems and noise abatement of high voltage electrical substations

    完成香港一些環保及工程的先河建設。此等建設包括燃煤發電的脫硫裝置及低氧化氮燃燒系統，先進環境監測系統及變壓站消減噪音設施。
  17. Jdy - 002 full frameless glass door electric bolt delayed time : 0s, 3s, 6s, 9s monitor output point no nc, automatically cut off the detection point after 14s when locked working voltage : 12vdc start current : 0. 85a, working current : 0. 25a features : voltage range : 9 15v with led, no noise bright silver cover left - opened type and right - opened type can be widen more than12mm dimension : 205 x 55 x 40mm weight : 1260g right - opened type left - opened type yiwu qimingxing computer company copy right

    Jdy - 002全無框玻璃門電插鎖此款為右開門此款為左開門可調試延時啟動時間： 0 3 6 9秒監視接點輸出no nc信號，門上鎖后14秒自動切斷感應點使用電壓12vdc ，啟動電流0 . 85a ，持續工作電流0 . 25a特點：具指示燈，無噪音適應電壓寬度9 - 15vdc可夾玻璃門寬度為12mm亮銀色面板，分為左右兩款外形尺寸： 205 x 55 x 40mm重量： 1260g
  18. However, psm also have some disadvantages, for example, the output voltage ripple is large at light load and the system maybe produce radio frequency noise

    但psm也具有不可避免的缺點:輕載時輸出電壓紋波較大，且易引入音頻噪聲。
  19. Radio interference characteristics of overhead power lines and high - voltage equipment - code of practice for minimizing the generation of radio noise

    架高線和高壓電器無線電干擾特性.第3部分:降低無線電噪聲慣例
  20. Measurement of audio - frequency noise voltage level in sound broadcasting

    聲音廣播中音頻噪聲電平的測定
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