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大俠們幫我解釋一下震動(dòng)傳感器吧報(bào)警的原理吧,這個(gè)電路圖有點(diǎn)看不懂?

舔傷大男孩 2011-09-26 02:42:16 360  瀏覽
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  • ooggrree 2011-09-27 00:00:00
    這個(gè)東東看不懂喔,Y1是什么?不會是傳感器吧?你應(yīng)把其余電路畫出來,好分析

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  • honglian0904 2011-09-27 00:00:00
    Y1是壓電晶體受到壓力或聲音震動(dòng)時(shí)會產(chǎn)生電壓輸出信號經(jīng)C5送至相關(guān)電路

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熱門問答

大俠們幫我解釋一下震動(dòng)傳感器吧報(bào)警的原理吧,這個(gè)電路圖有點(diǎn)看不懂?
 
2011-09-26 02:42:16 360 2
幫我解釋一下這個(gè)溫度變送器電路圖
 
2018-11-14 13:16:45 420 0
怎么創(chuàng)貼吧呢???幫我創(chuàng)一個(gè)吧
 
2009-05-16 12:08:04 306 2
這個(gè)是隕石吧
 
2015-06-06 17:12:05 379 3
大神們幫幫忙吧,這實(shí)驗(yàn)怎么搞?
2016-12-29 15:27:26 425 1
我的問題有點(diǎn)難吧?(女性問的)
我想問問大家誰知道,如果說一個(gè)人沒有性病,沒有陰道炎,那么她是不是就沒有支原體感染呢,這是一個(gè)概念嗎?應(yīng)該差不多吧。... 我想問問大家誰知道,如果說一個(gè)人沒有性病,沒有陰道炎,那么她是不是就沒有支原體感染呢,這是一個(gè)概念嗎?應(yīng)該差不多吧。 展開
2005-10-23 04:19:43 358 2
請幫我翻譯一段專業(yè)英語吧。。急用。。多謝。。。
Practical applications of colossal magnetoresistive(CMR) oxides are limited by the large magnetic fields and/or low temperature required to observe a significant change in electric resistivity[1-5]. In recent years,research on tunneling mag... Practical applications of colossal magnetoresistive(CMR) oxides are limited by the large magnetic fields and/or low temperature required to observe a significant change in electric resistivity[1-5]. In recent years,research on tunneling magnetoresistance(TMR) is a very active field because of its scientific interest and potential technological applications[6].Polycrystalline Sr2FeMoO6 perovskite is a candidate for magnetic sensors owing to its high ferromagnetic transition temperature …(Tc~420K)and the half-metallic electronic band structure predicted theoretically [7]. The conduction electrons in this compound are expected to be highly spin-polarized even at room temperature. More recently, perovskite Sr2FeMoO6 with nanometer grain size showed large magnetoresistance(~20%) at a low magnetic field of 4k Oe and at room temperature[8].Dai et al.[9]observed two different ordered structures in polycrystalline Sr2FeMoO6 perovskite: the double perovskite and the superstructure with tripled c-axis(ST).In this paper, another new layered structure of body-centered tetragonal phase (BT) is reported for the polycrystalline magnetoresistive Sr2FeMoO6 sample. Ceramic samples of Sr2FeMoO6 were prepared by standard solid state reaction. Stoichiometric materials of SrCO3,F(xiàn)e2O3 and MoO3 were mechanically mixed, and then calcined at 950℃ for 4h in air.The calcined mixture was then ball-milled and made into pellets followed by sintering at 1250℃for 4h in carbon monoxide atmosphere.Transmission electron microscopy(TEM) specimens were prepared by mechanical polishing,dimpling and ion milling.Electron diffraction patterns were taken at 120kV using a Phillips CM12 electron microscope, and high resolution TEM imaging was conducted using JEOL 2010 microscope. Energy dispersion of X-rays(EDX) was conducted by TEM attached with EDAX PV9100. 展開
2009-05-20 03:06:41 494 1
威力吧流量計(jì)的“吧”應(yīng)該是哪個(gè)字呢?是“吧”還是“巴”?
 
2010-10-12 08:17:43 364 3
大神們,能幫我解釋一下什么是固態(tài)光觸媒嗎
 
2017-03-31 22:46:02 481 1
血尿酸偏高誰知道???詳細(xì)幫我介紹下吧
 
2012-05-05 03:35:17 429 1
有點(diǎn)看不懂芯片介紹,能解釋一下怎么樣才能用單片機(jī)控制其發(fā)聲
芯片為ISD1420,用單片機(jī)控制的接線和編程... 芯片為ISD1420,用單片機(jī)控制的接線和編程 展開
2010-10-30 04:05:58 483 2
想來奉化打工,可以認(rèn)識下吧友們嗎
 
2018-12-11 15:09:39 286 0
長假過后迎來高峰期,禾工“閃電俠”們出發(fā)吧!

       十一長假過后上海禾工再次迎來了“小高峰”,生產(chǎn)、銷售、技術(shù)又開始馬不停蹄的忙碌起來。由于假期原因售后部積壓了很多安調(diào)單子,禾工“閃電俠”們又要出發(fā)咯......


       10月8日,技術(shù)工程師巫工、李工同時(shí)從上海出發(fā),相繼對江蘇、河南、福建、成都、廣西地區(qū)提供售后安調(diào)培訓(xùn)服務(wù)。


       本次安調(diào)單位多為制藥企業(yè),因此禾工技術(shù)員主要針對標(biāo)準(zhǔn)的解讀、卡爾費(fèi)休水分測定儀的具體操作以及日常維護(hù)保養(yǎng)等進(jìn)行了詳細(xì)的溝通交流,并引導(dǎo)用戶現(xiàn)場進(jìn)行上機(jī)測樣。提供行業(yè)專用應(yīng)用實(shí)例!


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