北京市SANIL開關(guān)SC-18MK-16,M18,16mm,DC10-60V韓國(guó)Sinwoo S-CON變送器。中山立訊電氣有限公司,中山朗立電氣有限公司FDC-4A1-W FDC-4A1-X FDC-4A1-Y FDC-4A1-Z
FDC-4A2-W FDC-4A2-X FDC-4A2-Y FDC-4A2-Z
FDC-4A3-W FDC-4A3-X FDC-4A3-Y FDC-4A3-Z
FDC-4A4-W FDC-4A4-X FDC-4A4-Y FDC-4A4-Z
FDC-4A5-W FDC-4A5-X FDC-4A5-Y FDC-4A5-Z
FDC-4A6-W FDC-4A6-X FDC-4A6-Y FDC-4A6-Z
FDC-4A7-W FDC-4A7-X FDC-4A7-Y FDC-4A7-Z
FDC-4A8-W FDC-4A8-X FDC-4A8-Y FDC-4A8-Z
FDC-4AR-W FDC-4AR-X FDC-4AR-Y FDC-4AR-Z
FDC-4AN-W FDC-4AN-X FDC-4AN-Y FDC-4AN-Z
FDC-4B1-W FDC-4B1-X FDC-4B1-Y FDC-4B1-Z
FDC-4B2-W FDC-4B2-X FDC-4B2-Y FDC-4B2-Z
FDC-4B3-W FDC-4B3-X FDC-4B3-Y FDC-4B3-Z
FDC-4B4-W FDC-4B4-X FDC-4B4-Y FDC-4B4-Z
FDC-4B5-W FDC-4B5-X FDC-4B5-Y FDC-4B5-Z
FDC-4B6-W FDC-4B6-X FDC-4B6-Y FDC-4B6-Z
FDC-4B7-W FDC-4B7-X FDC-4B7-Y FDC-4B7-Z
FDC-4B8-W FDC-4B8-X FDC-4B8-Y FDC-4B8-Z
FDC-4BR-W FDC-4BR-X FDC-4BR-Y FDC-4BR-Z
FDC-4BN-W FDC-4BN-X FDC-4BN-Y FDC-4BN-Z
FDC-4C1-W FDC-4C1-X FDC-4C1-Y FDC-4C1-Z
FDC-4C2-W FDC-4C2-X FDC-4C2-Y FDC-4C2-Z
FDC-4C3-W FDC-4C3-X FDC-4C3-Y FDC-4C3-Z
FDC-4C4-W FDC-4C4-X FDC-4C4-Y FDC-4C4-Z
FDC-4C5-W FDC-4C5-X FDC-4C5-Y FDC-4C5-Z
FDC-4C6-W FDC-4C6-X FDC-4C6-Y FDC-4C6-Z
FDC-4C7-W FDC-4C7-X FDC-4C7-Y FDC-4C7-Z
FDC-4C8-W FDC-4C8-X FDC-4C8-Y FDC-4C8-Z
FDC-4CR-W FDC-4CR-X FDC-4CR-Y FDC-4CR-Z
FDC-4CN-W FDC-4CN-X FDC-4CN-Y FDC-4CN-Z
FDC-4D1-W FDC-4D1-X FDC-4D1-Y FDC-4D1-Z
FDC-4D2-W FDC-4D2-X FDC-4D2-Y FDC-4D2-Z
FDC-4D3-W FDC-4D3-X FDC-4D3-Y FDC-4D3-Z
FDC-4D4-W FDC-4D4-X FDC-4D4-Y FDC-4D4-Z
FDC-4D5-W FDC-4D5-X FDC-4D5-Y FDC-4D5-Z
FDC-4D6-W FDC-4D6-X FDC-4D6-Y FDC-4D6-Z
FDC-4D7-W FDC-4D7-X FDC-4D7-Y FDC-4D7-Z
FDC-4D8-W FDC-4D8-X FDC-4D8-Y FDC-4D8-Z
FDC-4DR-W FDC-4DR-X FDC-4DR-Y FDC-4DR-Z
FDC-4DN-W FDC-4DN-X FDC-4DN-Y FDC-4DN-Z
FDC-4E1-W FDC-4E1-X FDC-4E1-Y FDC-4E1-Z
FDC-4E2-W FDC-4E2-X FDC-4E2-Y FDC-4E2-Z
FDC-4E3-W FDC-4E3-X FDC-4E3-Y FDC-4E3-Z
FDC-4E4-W FDC-4E4-X FDC-4E4-Y FDC-4E4-Z
FDC-4E5-W FDC-4E5-X FDC-4E5-Y FDC-4E5-Z
FDC-4E6-W FDC-4E6-X FDC-4E6-Y FDC-4E6-Z
FDC-4E7-W FDC-4E7-X FDC-4E7-Y FDC-4E7-Z
FDC-4E8-W FDC-4E8-X FDC-4E8-Y FDC-4E8-Z
FDC-4ER-W FDC-4ER-X FDC-4ER-Y FDC-4ER-Z
FDC-4EN-W FDC-4EN-X FDC-4EN-Y FDC-4EN-Z
FDC-7A1-W FDC-7A1-X FDC-7A1-Y FDC-7A1-Z
FDC-7A2-W FDC-7A2-X FDC-7A2-Y FDC-7A2-Z
FDC-7A3-W FDC-7A3-X FDC-7A3-Y FDC-7A3-Z
FDC-7A4-W FDC-7A4-X FDC-7A4-Y FDC-7A4-Z
FDC-7A5-W FDC-7A5-X FDC-7A5-Y FDC-7A5-Z
FDC-7A6-W FDC-7A6-X FDC-7A6-Y FDC-7A6-Z
FDC-7A7-W FDC-7A7-X FDC-7A7-Y FDC-7A7-Z
FDC-7A8-W FDC-7A8-X FDC-7A8-Y FDC-7A8-Z
FDC-7AR-W FDC-7AR-X FDC-7AR-Y FDC-7AR-Z
FDC-7AN-W FDC-7AN-X FDC-7AN-Y FDC-7AN-Z
FDC-7B1-W FDC-7B1-X FDC-7B1-Y FDC-7B1-Z
FDC-7B2-W FDC-7B2-X FDC-7B2-Y FDC-7B2-Z
FDC-7B3-W FDC-7B3-X FDC-7B3-Y FDC-7B3-Z
FDC-7B4-W FDC-7B4-X FDC-7B4-Y FDC-7B4-Z
FDC-7B5-W FDC-7B5-X FDC-7B5-Y FDC-7B5-Z
如果柵極上的噪聲電壓超過VGT，并有足夠的柵電流激發(fā)可控硅(晶閘管)內(nèi)部的正反饋，則也會(huì)被觸發(fā)導(dǎo)通。應(yīng)用安裝時(shí)，首先要使柵極外的連線盡可能短。當(dāng)連線不能很短時(shí)，可用絞線或屏蔽線來減小干擾的侵入。在然后G與MT1之間加一個(gè)1KΩ的電阻來降低其靈敏度，也可以再并聯(lián)一個(gè)100nf的電容，來濾掉高頻噪聲。關(guān)于轉(zhuǎn)換電壓變化率當(dāng)驅(qū)動(dòng)一個(gè)大的電感性負(fù)載時(shí)，在負(fù)載電壓和電流間有一個(gè)很大的相移。當(dāng)負(fù)載電流過零時(shí)，雙向可控硅(晶閘管)開始換向，但由于相移的關(guān)系，電壓將不會(huì)是零。所以要求可控硅(晶閘管)要迅速關(guān)斷這個(gè)電壓。如果這時(shí)換向電壓的變化超過允許值時(shí)，就沒有足夠的時(shí)間使結(jié)間的電荷釋放掉，而被迫使雙向可控硅(晶閘管)回到導(dǎo)通狀態(tài)。
北京市SANIL開關(guān)SC-18MK-16,M18,16mm,DC10-60V
FDC-7B6-W FDC-7B6-X FDC-7B6-Y FDC-7B6-Z
FDC-7B7-W FDC-7B7-X FDC-7B7-Y FDC-7B7-Z
FDC-7B8-W FDC-7B8-X FDC-7B8-Y FDC-7B8-Z
FDC-7BR-W FDC-7BR-X FDC-7BR-Y FDC-7BR-Z
FDC-7BN-W FDC-7BN-X FDC-7BN-Y FDC-7BN-Z
FDC-7C1-W FDC-7C1-X FDC-7C1-Y FDC-7C1-Z
FDC-7C2-W FDC-7C2-X FDC-7C2-Y FDC-7C2-Z
FDC-7C3-W FDC-7C3-X FDC-7C3-Y FDC-7C3-Z
FDC-7C4-W FDC-7C4-X FDC-7C4-Y FDC-7C4-Z
FDC-7C5-W FDC-7C5-X FDC-7C5-Y FDC-7C5-Z
FDC-7C6-W FDC-7C6-X FDC-7C6-Y FDC-7C6-Z
FDC-7C7-W FDC-7C7-X FDC-7C7-Y FDC-7C7-Z
FDC-7C8-W FDC-7C8-X FDC-7C8-Y FDC-7C8-Z
FDC-7CR-W FDC-7CR-X FDC-7CR-Y FDC-7CR-Z
FDC-7CN-W FDC-7CN-X FDC-7CN-Y FDC-7CN-Z
FDC-7D1-W FDC-7D1-X FDC-7D1-Y FDC-7D1-Z
FDC-7D2-W FDC-7D2-X FDC-7D2-Y FDC-7D2-Z
FDC-7D3-W FDC-7D3-X FDC-7D3-Y FDC-7D3-Z
FDC-7D4-W FDC-7D4-X FDC-7D4-Y FDC-7D4-Z
FDC-7D5-W FDC-7D5-X FDC-7D5-Y FDC-7D5-Z
FDC-7D6-W FDC-7D6-X FDC-7D6-Y FDC-7D6-Z
FDC-7D7-W FDC-7D7-X FDC-7D7-Y FDC-7D7-Z
FDC-7D8-W FDC-7D8-X FDC-7D8-Y FDC-7D8-Z
FDC-7DR-W FDC-7DR-X FDC-7DR-Y FDC-7DR-Z
FDC-7DN-W FDC-7DN-X FDC-7DN-Y FDC-7DN-Z
FDC-7E1-W FDC-7E1-X FDC-7E1-Y FDC-7E1-Z
FDC-7E2-W FDC-7E2-X FDC-7E2-Y FDC-7E2-Z
FDC-7E3-W FDC-7E3-X FDC-7E3-Y FDC-7E3-Z
FDC-7E4-W FDC-7E4-X FDC-7E4-Y FDC-7E4-Z
FDC-7E5-W FDC-7E5-X FDC-7E5-Y FDC-7E5-Z
FDC-7E6-W FDC-7E6-X FDC-7E6-Y FDC-7E6-Z
FDC-7E7-W FDC-7E7-X FDC-7E7-Y FDC-7E7-Z
FDC-7E8-W FDC-7E8-X FDC-7E8-Y FDC-7E8-Z
FDC-7ER-W FDC-7ER-X FDC-7ER-Y FDC-7ER-Z
FDC-7EN-W FDC-7EN-X FDC-7EN-Y FDC-7EN-Z
FDC-9A1-W FDC-9A1-X FDC-9A1-Y FDC-9A1-Z
FDC-9A2-W FDC-9A2-X FDC-9A2-Y FDC-9A2-Z
FDC-9A3-W FDC-9A3-X FDC-9A3-Y FDC-9A3-Z
FDC-9A4-W FDC-9A4-X FDC-9A4-Y FDC-9A4-Z
FDC-9A5-W FDC-9A5-X FDC-9A5-Y FDC-9A5-Z
FDC-9A6-W FDC-9A6-X FDC-9A6-Y FDC-9A6-Z
FDC-9A7-W FDC-9A7-X FDC-9A7-Y FDC-9A7-Z
FDC-9A8-W FDC-9A8-X FDC-9A8-Y FDC-9A8-Z
FDC-9AR-W FDC-9AR-X FDC-9AR-Y FDC-9AR-Z
FDC-9AN-W FDC-9AN-X FDC-9AN-Y FDC-9AN-Z
FDC-9B1-W FDC-9B1-X FDC-9B1-Y FDC-9B1-Z
FDC-9B2-W FDC-9B2-X FDC-9B2-Y FDC-9B2-Z
FDC-9B3-W FDC-9B3-X FDC-9B3-Y FDC-9B3-Z
FDC-9B4-W FDC-9B4-X FDC-9B4-Y FDC-9B4-Z
FDC-9B5-W FDC-9B5-X FDC-9B5-Y FDC-9B5-Z
FDC-9B6-W FDC-9B6-X FDC-9B6-Y FDC-9B6-Z
FDC-9B7-W FDC-9B7-X FDC-9B7-Y FDC-9B7-Z
也利用了光線的反射原理。綠色光源裝置在表計(jì)舌面．紅色光源裝置在表計(jì)的左面，也有采用色板的，光線經(jīng)透射與反射后，使水位計(jì)中水部分呈綠色，汽部分呈紅色。低地位水位計(jì)根據(jù)規(guī)定，當(dāng)水位計(jì)距離操作面高于6m時(shí)，應(yīng)加裝低地位式水位計(jì)。低地位水位計(jì)有液柱差壓式低地位水位計(jì)和機(jī)械式低地位水位計(jì)兩種。液柱差壓式低地位水位計(jì)是利用流體靜壓力原理，測(cè)量?jī)蓚€(gè)液柱的靜壓差而制成。根據(jù)低地位水位計(jì)指示器中液體比重不同，有比重大于l的重液式低地位水位計(jì)，比重小于1的輕液式低地位水位計(jì)。還有差壓式低地位水位計(jì)等。對(duì)低地位水位計(jì)所用的工作液要求如下：不溶于水。可染成鮮明的顏色，與水能形成明顯的分界線。沸點(diǎn)較高，且無腐蝕作用。
北京市SANIL開關(guān)SC-18MK-16,M18,16mm,DC10-60V
FDC-9B8-W FDC-9B8-X FDC-9B8-Y FDC-9B8-Z
FDC-9BR-W FDC-9BR-X FDC-9BR-Y FDC-9BR-Z
FDC-9BN-W FDC-9BN-X FDC-9BN-Y FDC-9BN-Z
FDC-9C1-W FDC-9C1-X FDC-9C1-Y FDC-9C1-Z
FDC-9C2-W FDC-9C2-X FDC-9C2-Y FDC-9C2-Z
FDC-9C3-W FDC-9C3-X FDC-9C3-Y FDC-9C3-Z
FDC-9C4-W FDC-9C4-X FDC-9C4-Y FDC-9C4-Z
FDC-9C5-W FDC-9C5-X FDC-9C5-Y FDC-9C5-Z
FDC-9C6-W FDC-9C6-X FDC-9C6-Y FDC-9C6-Z
FDC-9C7-W FDC-9C7-X FDC-9C7-Y FDC-9C7-Z
FDC-9C8-W FDC-9C8-X FDC-9C8-Y FDC-9C8-Z
FDC-9CR-W FDC-9CR-X FDC-9CR-Y FDC-9CR-Z
FDC-9CN-W FDC-9CN-X FDC-9CN-Y FDC-9CN-Z
FDC-9D1-W FDC-9D1-X FDC-9D1-Y FDC-9D1-Z
FDC-9D2-W FDC-9D2-X FDC-9D2-Y FDC-9D2-Z
FDC-9D3-W FDC-9D3-X FDC-9D3-Y FDC-9D3-Z
FDC-9D4-W FDC-9D4-X FDC-9D4-Y FDC-9D4-Z
FDC-9D5-W FDC-9D5-X FDC-9D5-Y FDC-9D5-Z
FDC-9D6-W FDC-9D6-X FDC-9D6-Y FDC-9D6-Z
FDC-9D7-W FDC-9D7-X FDC-9D7-Y FDC-9D7-Z
FDC-9D8-W FDC-9D8-X FDC-9D8-Y FDC-9D8-Z
FDC-9DR-W FDC-9DR-X FDC-9DR-Y FDC-9DR-Z
FDC-9DN-W FDC-9DN-X FDC-9DN-Y FDC-9DN-Z
FDC-9E1-W FDC-9E1-X FDC-9E1-Y FDC-9E1-Z
FDC-9E2-W FDC-9E2-X FDC-9E2-Y FDC-9E2-Z
FDC-9E3-W FDC-9E3-X FDC-9E3-Y FDC-9E3-Z
FDC-9E4-W FDC-9E4-X FDC-9E4-Y FDC-9E4-Z
FDC-9E5-W FDC-9E5-X FDC-9E5-Y FDC-9E5-Z
FDC-9E6-W FDC-9E6-X FDC-9E6-Y FDC-9E6-Z
FDC-9E7-W FDC-9E7-X FDC-9E7-Y FDC-9E7-Z
FDC-9E8-W FDC-9E8-X FDC-9E8-Y FDC-9E8-Z
FDC-9ER-W FDC-9ER-X FDC-9ER-Y FDC-9ER-Z
FDC-9EN-W FDC-9EN-X FDC-9EN-Y FDC-9EN-Z
HSS-2A1-W HSS-2A1-X HSS-2A1-Y HSS-2A1-Z
HSS-2A2-W HSS-2A2-X HSS-2A2-Y HSS-2A2-Z
HSS-2A3-W HSS-2A3-X HSS-2A3-Y HSS-2A3-Z
HSS-2A4-W HSS-2A4-X HSS-2A4-Y HSS-2A4-Z
HSS-2A5-W HSS-2A5-X HSS-2A5-Y HSS-2A5-Z
HSS-2A6-W HSS-2A6-X HSS-2A6-Y HSS-2A6-Z
而且當(dāng)熔體發(fā)生熔斷時(shí)其兩端的電壓也很高，往往會(huì)出現(xiàn)熔體已熔化（熔斷）甚至已汽化，但是電流并沒有切斷，其原因就是在熔斷的一瞬間在電壓及電流的作用下，絲的兩電極之間發(fā)生拉弧現(xiàn)象。這個(gè)滅弧裝置必須有很強(qiáng)的絕緣性與很好的導(dǎo)熱性，且呈負(fù)電性。石英砂就是常用的滅弧材料。熔斷裝置另外，還有一些絲有熔斷指示裝置，它的作用就是當(dāng)絲動(dòng)作（熔斷）后其本身發(fā)生一定的外觀變化，易于被維修人員發(fā)現(xiàn)，例如：發(fā)光、變色、彈出固體指示器等。分?jǐn)嗄芰庉嫯?dāng)介于常規(guī)不熔斷電流與相關(guān)標(biāo)準(zhǔn)規(guī)定的額定分?jǐn)嗄芰Γǖ碾娏鳎┲g的電流作用于絲時(shí)，絲應(yīng)能滿意地動(dòng)作，而且不會(huì)危及周圍環(huán)境。絲被安置的電路的預(yù)期故障電流必須小于標(biāo)準(zhǔn)規(guī)定的額定分?jǐn)嗄芰﹄娏鳌?img alt="北京市SANIL開關(guān)SC-18MK-16,M18,16mm,DC10-60V" src="http://img.jdzj.com/UserDocument/mallpic/lixun98/Picture/200225090324197.jpg" />
北京市SANIL開關(guān)SC-18MK-16,M18,16mm,DC10-60V
HSS-2A7-W HSS-2A7-X HSS-2A7-Y HSS-2A7-Z
HSS-2A8-W HSS-2A8-X HSS-2A8-Y HSS-2A8-Z
HSS-2AR-W HSS-2AR-X HSS-2AR-Y HSS-2AR-Z
HSS-2AN-W HSS-2AN-X HSS-2AN-Y HSS-2AN-Z
HSS-2B1-W HSS-2B1-X HSS-2B1-Y HSS-2B1-Z
HSS-2B2-W HSS-2B2-X HSS-2B2-Y HSS-2B2-Z
HSS-2B3-W HSS-2B3-X HSS-2B3-Y HSS-2B3-Z
HSS-2B4-W HSS-2B4-X HSS-2B4-Y HSS-2B4-Z
HSS-2B5-W HSS-2B5-X HSS-2B5-Y HSS-2B5-Z
HSS-2B6-W HSS-2B6-X HSS-2B6-Y HSS-2B6-Z
HSS-2B7-W HSS-2B7-X HSS-2B7-Y HSS-2B7-Z
HSS-2B8-W HSS-2B8-X HSS-2B8-Y HSS-2B8-Z
HSS-2BR-W HSS-2BR-X HSS-2BR-Y HSS-2BR-Z
HSS-2BN-W HSS-2BN-X HSS-2BN-Y HSS-2BN-Z
HSS-2C1-W HSS-2C1-X HSS-2C1-Y HSS-2C1-Z
HSS-2C2-W HSS-2C2-X HSS-2C2-Y HSS-2C2-Z
HSS-2C3-W HSS-2C3-X HSS-2C3-Y HSS-2C3-Z
HSS-2C4-W HSS-2C4-X HSS-2C4-Y HSS-2C4-Z
HSS-2C5-W HSS-2C5-X HSS-2C5-Y HSS-2C5-Z
HSS-2C6-W HSS-2C6-X HSS-2C6-Y HSS-2C6-Z
HSS-2C7-W HSS-2C7-X HSS-2C7-Y HSS-2C7-Z
HSS-2C8-W HSS-2C8-X HSS-2C8-Y HSS-2C8-Z
HSS-2CR-W HSS-2CR-X HSS-2CR-Y HSS-2CR-Z
HSS-2CN-W HSS-2CN-X HSS-2CN-Y HSS-2CN-Z
HSS-2D1-W HSS-2D1-X HSS-2D1-Y HSS-2D1-Z
HSS-2D2-W HSS-2D2-X HSS-2D2-Y HSS-2D2-Z
HSS-2D3-W HSS-2D3-X HSS-2D3-Y HSS-2D3-Z
HSS-2D4-W HSS-2D4-X HSS-2D4-Y HSS-2D4-Z
HSS-2D5-W HSS-2D5-X HSS-2D5-Y HSS-2D5-Z
HSS-2D6-W HSS-2D6-X HSS-2D6-Y HSS-2D6-Z
HSS-2D7-W HSS-2D7-X HSS-2D7-Y HSS-2D7-Z
HSS-2D8-W HSS-2D8-X HSS-2D8-Y HSS-2D8-Z
HSS-2DR-W HSS-2DR-X HSS-2DR-Y HSS-2DR-Z
HSS-2DN-W HSS-2DN-X HSS-2DN-Y HSS-2DN-Z
HSS-2E1-W HSS-2E1-X HSS-2E1-Y HSS-2E1-Z
HSS-2E2-W HSS-2E2-X HSS-2E2-Y HSS-2E2-Z
HSS-2E3-W HSS-2E3-X HSS-2E3-Y HSS-2E3-Z
HSS-2E4-W HSS-2E4-X HSS-2E4-Y HSS-2E4-Z
HSS-2E5-W HSS-2E5-X HSS-2E5-Y HSS-2E5-Z
HSS-2E6-W HSS-2E6-X HSS-2E6-Y HSS-2E6-Z
ZVS），或是通過開關(guān)管的電流為零，即零電流開關(guān)（Zero-Current·Switching，ZCS）。這種軟開關(guān)方式可以顯著地減小開關(guān)損耗，以及開關(guān)過程中激起的振蕩，使開關(guān)頻率可以大幅度提高，為轉(zhuǎn)換器的小型化和模塊化創(chuàng)造了條件。功率場(chǎng)效應(yīng)管（MOSFET）是應(yīng)用較多的開關(guān)器件，它有較高的開關(guān)速度，但同時(shí)也有較大的寄生電容。它關(guān)斷時(shí)，在外電壓的作用下，其寄生電容充滿電，如果在其開通前不將這一部分電荷放掉，則將消耗于器件內(nèi)部，這就是容性開通損耗。為了減小或消除這種損耗，功率場(chǎng)效應(yīng)管宜采用零電壓開通方式（ZVS）。絕緣柵雙極性晶體管（InsulatedGateBipolartansistor，IGBT）是一種復(fù)合開關(guān)器件。
北京市SANIL開關(guān)SC-18MK-16,M18,16mm,DC10-60V
HSS-2E7-W HSS-2E7-X HSS-2E7-Y HSS-2E7-Z
HSS-2E8-W HSS-2E8-X HSS-2E8-Y HSS-2E8-Z
HSS-2ER-W HSS-2ER-X HSS-2ER-Y HSS-2ER-Z
HSS-2EN-W HSS-2EN-X HSS-2EN-Y HSS-2EN-Z
HSS-2F1-W HSS-2F1-X HSS-2F1-Y HSS-2F1-Z
HSS-2F2-W HSS-2F2-X HSS-2F2-Y HSS-2F2-Z
HSS-2F3-W HSS-2F3-X HSS-2F3-Y HSS-2F3-Z
HSS-2F4-W HSS-2F4-X HSS-2F4-Y HSS-2F4-Z
HSS-2F5-W HSS-2F5-X HSS-2F5-Y HSS-2F5-Z
HSS-2F6-W HSS-2F6-X HSS-2F6-Y HSS-2F6-Z
HSS-2F7-W HSS-2F7-X HSS-2F7-Y HSS-2F7-Z
HSS-2F8-W HSS-2F8-X HSS-2F8-Y HSS-2F8-Z
HSS-2FR-W HSS-2FR-X HSS-2FR-Y HSS-2FR-Z
HSS-2FN-W HSS-2FN-X HSS-2FN-Y HSS-2FN-Z
HSS-2G1-W HSS-2G1-X HSS-2G1-Y HSS-2G1-Z
HSS-2G2-W HSS-2G2-X HSS-2G2-Y HSS-2G2-Z
HSS-2G3-W HSS-2G3-X HSS-2G3-Y HSS-2G3-Z
HSS-2G4-W HSS-2G4-X HSS-2G4-Y HSS-2G4-Z
HSS-2G5-W HSS-2G5-X HSS-2G5-Y HSS-2G5-Z
HSS-2G6-W HSS-2G6-X HSS-2G6-Y HSS-2G6-Z
HSS-2G7-W HSS-2G7-X HSS-2G7-Y HSS-2G7-Z
HSS-2G8-W HSS-2G8-X HSS-2G8-Y HSS-2G8-Z
HSS-2GR-W HSS-2GR-X HSS-2GR-Y HSS-2GR-Z
HSS-2GN-W HSS-2GN-X HSS-2GN-Y HSS-2GN-Z
HSS-2H1-W HSS-2H1-X HSS-2H1-Y HSS-2H1-Z
HSS-2H2-W HSS-2H2-X HSS-2H2-Y HSS-2H2-Z
HSS-2H3-W HSS-2H3-X HSS-2H3-Y HSS-2H3-Z
HSS-2H4-W HSS-2H4-X HSS-2H4-Y HSS-2H4-Z
HSS-2H5-W HSS-2H5-X HSS-2H5-Y HSS-2H5-Z
HSS-2H6-W HSS-2H6-X HSS-2H6-Y HSS-2H6-Z
HSS-2H7-W HSS-2H7-X HSS-2H7-Y HSS-2H7-Z
HSS-2H8-W HSS-2H8-X HSS-2H8-Y HSS-2H8-Z
HSS-2HR-W HSS-2HR-X HSS-2HR-Y HSS-2HR-Z
HSS-2HN-W HSS-2HN-X HSS-2HN-Y HSS-2HN-Z
可以將傳感器固定在河底，用引壓管消除大氣壓力，從而直接測(cè)得水位。壓力式水位計(jì)有兩類。一類為氣泡型，在引壓管中不斷輸氣，用自動(dòng)調(diào)節(jié)的壓力天平將水壓力轉(zhuǎn)換成機(jī)械轉(zhuǎn)角量，從而帶動(dòng)記錄機(jī)構(gòu)。另一類為電測(cè)型，它應(yīng)用固態(tài)壓阻器件作傳感器，可直接將水壓力轉(zhuǎn)變成電壓模量或頻率量輸出,用導(dǎo)線傳輸至岸上進(jìn)行處理和記錄（圖2）。聲波式水位計(jì)是反射式水位計(jì)的一種，應(yīng)用聲波遇不同介面反射的原理來測(cè)定水位。分為氣介式和水介式兩類。氣介式以空氣為聲波的傳播介質(zhì)，換能器置于水面上方，由水面反射聲波，根據(jù)回波時(shí)間可計(jì)算并顯示出水位。儀器不接觸水體，完全擺脫水中泥沙，流速?zèng)_擊和水草等不利因素的影響。水介式是將換能器安裝在河底，向水面發(fā)射聲波。
北京市SANIL開關(guān)SC-18MK-16,M18,16mm,DC10-60V
