電聲變壓器 的英文怎麼說
中文拼音 [diànshēngbiànyāqì]
電聲變壓器
英文
electroacoustic transformer-
In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method
在數字式保護中，如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增，本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值，以便在提高采樣率的同時降低噪聲誤差的影響，並將其應用於基於32位浮點dsp的新型變壓器保護裝置。Meixing electronics factory is major in the vacuum tube stereo power amplifier, which is located in the nanhai city ， owned a workhouse over 1300 square meter, with five plant, they are box, seal and transformer circling 、 debugging & check, we also have the machine process, such as milling machine 、 punch 、 drill press 、 electric welding 、 matrix 、 incision machine, and radio tube test machine. we have realize the product line manufacture, the monthly whole output is over 200 sets
美星電子是一個專業製造真空管身歷聲功率放大器的加工廠，位於廣東南海市黃岐工業區，擁有廠房一千三百平方米，工廠分機箱加工、焊接組裝、變壓器繞制、煲機老化、調試檢測五個車間，機械加工設備擁有銑床、沖床、創床、鉆床、電焊、模具製作、切割等二十多臺，電子管及整機檢測調試儀器十餘臺，該廠實現了配套設備、流水作業，每月可生產膽機二百臺以上，可謂中國專業生產膽機最大規模的工廠。This paper introduces the property requirements on insulating varnish and some technical indicators of import varnishes used in electronic transformer, discusses the effects of baking temperature, baking time, dry capability, impregnation process of varnish on the noise, rustiness box craze, insulating tape bond failure which occurred in electronic transformer
摘要介紹了電子變壓器用絕緣浸漬漆的性能要求，介紹了一些進口絕緣浸漬漆的性能指標，分析討論了漆的烘烤溫度、時間、乾燥性、浸漬工藝對電子變壓器的噪聲、生銹、外殼爆裂、絕緣膠帶脫開的影響，討論了絕緣漆在應用中的環保問題。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。The ultrasonic motor is a kind of direct driver which is uses the converse piezoelectric effect of the piezoelectricity ceramics, by using transformation and the coupling of each kind of expansion and contraction vibration pattern enlarging the material microscopic distortion by resonate effect and transforming it to macroscopic movement of the rotor or the slide by the friction coupling
超聲波馬達是一種利用壓電陶瓷的逆壓電效應，通過各種伸縮振動模式的轉換與耦合，將材料的微觀變形通過共振放大和摩擦耦合轉換成轉子或者滑塊宏觀運動的直接驅動器。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。I hope this helps. i am still interested in gathering people ' s experiences with transformers, in order to learn more about what makes tube amps sound good
希望我的解釋對你有所幫助。我很有興趣收集不同的人對各種變壓器的體驗，這樣我才有機會發現為什麼電子管放大器會這么好聲。Three phase dry type power transformer, which make it with those features : safety, reliability, and energy saving, fireproof, flameproof, simple maintenance etc., the design is advanced ; the structure of products is reasonable and the outline is fine, the main performances of the products are much better than the national standards, for example, partial discharge level no - load loss, on - load loss, noise level, it is adaptable for application on heavy humidity and severely pollute places which are near to lake, sea and rive, as well as, high demand - fireproof, heavy load capacity place, such as : high building, airport, station, port, underground, hospital, electrical power station, metallurgy, shopping center, residential area and petroleum chemical industry, nuclear power station, nuclear - powered submarine
非包封線圈三相干式變壓器，具有安全可靠節能防火防爆維護簡單等優點。其設計先進結構合理外形美觀。主要性能指標均優于國內標準，如局放水平空載損耗負載損耗噪聲以及能適應高溫度環境使用等，可安裝在靠近湖海河邊污穢潮濕的環境及防火要求高負荷較大的地區，適用於高層建築機場車站碼頭地鐵醫院電廠冶金行業購物中心居民密集區以及石油化工核電站核潛艇等場所。In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on
本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題，在此基礎上，從理論上論證了在低壓電網上應用擴頻載波數據通信技術的可行性和優越性，並重點論述了擴頻載波技術抗電力線噪聲干擾的機埋；本文提出了一個新穎的基於低壓電力線擴頻載波通信技術的集中遠抄系統的總體方案，即由用戶終端、集中器和電能管理系統所組成的網路系統，其中，用戶終端到配變集中器用低壓電力線作為通道，中間無需其他硬體中繼設備，集中器到電能管理系統用公用電話網作為通道。Power transformers - determination of sound levels
電力變壓器.聲音水平測定Currently, zno is attracting attention for its application to uv light - emitters, varistors, transparent high power electronics, surface acoustic wave devices, piezoelectric transducers, gas - sensing and as a window material for display and solar cells
目前， zno由於在紫外光輻射、變阻器、透明高功率電子器件、表面聲波器件、壓電傳感器、氣敏傳感器及作為顯示器件和太陽能電池窗口材料方面的廣泛應用而引起人們極大關注。Power transformers - part10 : determination of sound levels
電力變壓器第10部分:聲級測定Sound level for 6kv 500kv power transformers
6kv 500kv級電力變壓器聲級Controller can output multi - teams relay contact signal, and 010ma current signal, 010v or 10 10v voltage signal according to demand when weight in car changed. meanwhile the controller can warn by sound light when overload also to provide accurate data for elevator load weighing and start
當電梯轎廂內重量變化時，控制儀根據要求可以輸出多組繼電器觸點信號，以及010ma電流信號或010v或- 10v 10v電壓信號，超載時控制儀聲光報警，為電梯稱重以及啟動提供精確的數據。Not only regulator can transform a constant voltage to some kinds of various voltages, but also the transformed voltages must be not changeable with temperature changing ( i. e. zero temperature coefficient ). and it should be stable though the power supply is not immune. so the art of regulator design should be more challenging
電壓調節器不僅要具有將某個固定電壓轉換成所需要數值的電壓的功能，而且轉換后的電壓須具有在一定的溫度范圍內不隨溫度的變化而變化（也即零溫度系數） ，以及不受輸入電壓噪聲影響的特點，這對電壓調節器的設計提出了更高的要求。Dc / dc transfer, high efficient and less noise, meet the different voltage and current need by each module. the mts use isolated dc / dc module to provide power for dilapidation detectors, avoiding lightning strike
Dc dc轉換採用了高效率、低噪聲的dc dc變換電路滿足各模塊的電壓和電流需要；終端採用了隔離dc dc模塊為崩塌傳感器提供電源，防止雷擊對終端其它模塊的影響。If the speaker needs more current ( its overall impedance drops ) then a lower amplifier output impedance will allow that current to be drawn out of the amplifier without causing much of a change in the applied voltage - and that means less distortion
如果揚聲器需要更大電流（揚聲器的整體阻抗降低） ，那麼一個低輸出阻抗的放大器可以容許在輸出相應電流的同時，所施加的電壓變化更小，這也意味著失真更小。If the speaker needs more current ( its overall impedance drops ) then a lower amplifier output impedance will allow that current to be drawn out of the amplifier without causing much of a change in the applied voltage - and that means [ i ] less [ / i ] distortion
如果揚聲器需要更大電流（揚聲器的整體阻抗降低） ，那麼一個低輸出阻抗的放大器可以容許在輸出相應電流的同時，所施加的電壓變化更小，這也意味著失真更小。分享友人