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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="thtvm33" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>福建電導(dǎo)率儀報(bào)價(jià),電導(dǎo)率儀</p><p><span>***更新：</span>2021-01-20 08:04:05</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="27vzldf" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海博取環(huán)境技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>吳龐博</p><p><span>郵箱: </span>2355456207@qq.com</p><p><span>電話: </span>15900820461</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-20966896</p><p><span>地址: </span>南匯新城鎮(zhèn)海洋一路333號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="2kfwoel" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="7elnpgr" class="box"><p><p> 土壤電導(dǎo)率儀是一種便攜式常規(guī)測(cè)量分析儀器，采用一體化結(jié)構(gòu)設(shè)計(jì)，可以測(cè)量土壤鹽分，福建電導(dǎo)率儀報(bào)價(jià)，有便攜式主機(jī)、傳感器、軟件等組成，操作簡(jiǎn)便。該儀器廣泛應(yīng)用于旱作節(jié)水灌溉、精細(xì)農(nóng)業(yè)、林業(yè)、地質(zhì)勘探、植物培育、溫室大棚種植、水利、環(huán)保，福建電導(dǎo)率儀報(bào)價(jià)、科學(xué)試驗(yàn)等領(lǐng)域。在農(nóng)業(yè)生產(chǎn)中，土壤是一切的關(guān)鍵，過(guò)去我們比較關(guān)注土壤的養(yǎng)分狀況，福建電導(dǎo)率儀報(bào)價(jià)，其實(shí)土壤的水分也關(guān)系著土壤的肥沃程度，水分充足的土壤更加有利于作物的成長(zhǎng)，土壤水分和溫度是土壤的重要組成部分，對(duì)作物的生長(zhǎng)、節(jié)水灌溉等有著非常重要的作用。所以為了更好的保證作物的成長(zhǎng)，我們有必要對(duì)土壤中的水分溫度進(jìn)行測(cè)量，通過(guò)掌握土壤的水分(墑情)的分布狀況，為差異化的節(jié)水灌溉提供科學(xué)的依據(jù)，同時(shí)精確的供水也有利于提高作物的產(chǎn)量和品質(zhì)。土壤電導(dǎo)率儀采用一體化結(jié)構(gòu)設(shè)計(jì)，內(nèi)置GPS模塊，GPRS模塊，外置SD卡，能準(zhǔn)確的測(cè)量出被測(cè)地點(diǎn)的地理信息，界面除顯示所測(cè)環(huán)境參數(shù)、存儲(chǔ)數(shù)據(jù)外，還可顯示測(cè)點(diǎn)的經(jīng)緯度。通過(guò)內(nèi)置的GPRS一鍵上傳被測(cè)點(diǎn)的環(huán)境因子測(cè)量數(shù)據(jù)等。同時(shí)還可以通過(guò)外置SD卡直接把數(shù)據(jù)導(dǎo)出到電腦上。本機(jī)體積小巧、美觀，操作簡(jiǎn)單方便，性能可靠，野外攜帶極為方便。福建電導(dǎo)率儀報(bào)價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建電導(dǎo)率儀報(bào)價(jià),電導(dǎo)率儀" src="http://tyunfile.71360.com/UploadFile/boqu123/637064065225644532/1167102.png"></div><p style="text-indent:25px"> 2019年9月18日，方正集團(tuán)成員企業(yè)**前來(lái)公司參觀指導(dǎo)工作。由我司總經(jīng)理程總，技術(shù)總監(jiān)倪總，臨港科創(chuàng)中心張總一起接待參觀，介紹了我們公司的產(chǎn)品和實(shí)力，同時(shí)我們的產(chǎn)品和未來(lái)的發(fā)展也得到了**的認(rèn)可，參觀洽談完美結(jié)束。 2019年9月18日，方正集團(tuán)成員企業(yè)**前來(lái)公司參觀指導(dǎo)工作。由我司總經(jīng)理程總，技術(shù)總監(jiān)倪總，臨港科創(chuàng)中心張總一起接待參觀，介紹了我們公司的產(chǎn)品和實(shí)力，同時(shí)我們的產(chǎn)品和未來(lái)的發(fā)展也得到了**的認(rèn)可，參觀洽談完美結(jié)束。福建電導(dǎo)率儀報(bào)價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建電導(dǎo)率儀報(bào)價(jià),電導(dǎo)率儀" src="http://tyunfile.71360.com/UploadFile/boqu123/637066592888837890/2673522.jpg"></div><p> 電導(dǎo)率（conductivity），也稱(chēng)為導(dǎo)電率：是用來(lái)描述物質(zhì)中電荷流動(dòng)難、易程度的參數(shù)，水的導(dǎo)電性即水的電阻的倒數(shù)，通常用它來(lái)表示水的純凈度。電導(dǎo)率是物體傳導(dǎo)電流的能力。一、電導(dǎo)率儀的單位電導(dǎo)的基本單位是西門(mén)子（S），原來(lái)被稱(chēng)為姆歐，取電阻單位歐姆倒數(shù)之意。因?yàn)殡妼?dǎo)池的幾何形狀影響電導(dǎo)率值，所以標(biāo)準(zhǔn)的測(cè)量中用單位S/cm來(lái)表示電導(dǎo)率，以補(bǔ)償各種電極尺寸造成的差別。單位電導(dǎo)率（C）簡(jiǎn)單的說(shuō)，是所測(cè)電導(dǎo)（G）與電導(dǎo)池常數(shù)(L/A)的乘積。這里的L為兩塊極板之間的液柱長(zhǎng)度，A為極板的面積。=ρl=l/σ1、定義：電阻率的倒數(shù)為電導(dǎo)率。σ=1/ρ2、單位:在國(guó)際單位制中，電導(dǎo)率的單位是西門(mén)子/米，其它單位有：s/cm，us/cm。1S/m=；3、電導(dǎo)率的物理意義：是表示物質(zhì)導(dǎo)電的性能。電導(dǎo)率越大則導(dǎo)電性能越強(qiáng)，反之越小。二、電導(dǎo)率的測(cè)量原理將兩塊平行的極板，放到被測(cè)溶液中，在極板的兩端加上一定的電勢(shì)（通常為正弦波電壓），然后測(cè)量極板間流過(guò)的電流。根據(jù)歐姆定律，電導(dǎo)率(G)--電阻(R)的倒數(shù)，是由電壓和電流決定的。引起離子在被測(cè)溶液中運(yùn)動(dòng)的電場(chǎng)，是由與溶液直接接觸的二個(gè)電極產(chǎn)生的。此對(duì)測(cè)量電極必須由抗化學(xué)腐蝕的材料制成。實(shí)際中經(jīng)常用到的材料有鈦等。</p><p> ）三、電導(dǎo)率儀的電導(dǎo)電極的種類(lèi)、用途電導(dǎo)電極一般分為二電極式、多電極式兩種類(lèi)型。1、二電極式電導(dǎo)電極是目前使用多的電導(dǎo)電極類(lèi)型，實(shí)驗(yàn)式二電極式電導(dǎo)電極的結(jié)構(gòu)，是將二片鉑片燒結(jié)在二平行玻璃片上，或圓形玻璃管的內(nèi)壁上，調(diào)節(jié)鉑片的面積和距離，就可以制成不同常數(shù)值的電導(dǎo)電極。通常有K=1、K=5、K=10等類(lèi)型。而在線電導(dǎo)率儀上使用的二電極式電導(dǎo)電極，常制成圓柱形對(duì)稱(chēng)的電極。當(dāng)K=1時(shí)，常采用石墨，當(dāng)K=、，材料可以是不銹鋼或鈦合金。2、多電極式電導(dǎo)電極一般在支持體上有幾個(gè)環(huán)狀的電極，通過(guò)環(huán)狀電極的串聯(lián)和并聯(lián)的不同組合，可以制成不同常數(shù)的電導(dǎo)電極。環(huán)狀電極的材料可以是石墨、不銹鋼、鈦合金和鉑金。3、電導(dǎo)電極還有四電極類(lèi)型和電磁式類(lèi)型四電極電導(dǎo)電極的優(yōu)點(diǎn)，是可以避免電極極化帶來(lái)的測(cè)量誤差，在國(guó)外的實(shí)驗(yàn)式和在線式電導(dǎo)率儀上較多使用。電磁式電導(dǎo)電極的特點(diǎn)，是適宜于測(cè)量高電導(dǎo)率的溶液，一般用于工業(yè)電導(dǎo)率儀中，或利用其測(cè)量原理制成單組分的濃度計(jì)，如鹽酸濃度計(jì)、硝酸濃度計(jì)等。四、電導(dǎo)率電極常數(shù)的測(cè)定、校準(zhǔn)根據(jù)公式K=S/G，電極常數(shù)K可以通過(guò)測(cè)量電導(dǎo)電極，在一定濃度的KCL溶液中的電導(dǎo)G來(lái)求得，此時(shí)KCL溶液的電導(dǎo)率S是已知的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建電導(dǎo)率儀報(bào)價(jià),電導(dǎo)率儀" src="http://tyunfile.71360.com/UploadFile/boqu123/637064065225488282/6264812.png"></div><p style="text-indent:25px">水的硬度水的硬度是指水中鈣、鎂離子的濃度，硬度單位是ppm，1ppm**水中碳酸鈣含量1毫克/升(mg/L)。電導(dǎo)（G）是電阻（R）的倒數(shù)。因此當(dāng)兩個(gè)電極（通常為鉑電極或鉑黑電極）插入溶液中，可以測(cè)出兩電極間的電阻R。根據(jù)歐姆定律，溫度一定時(shí)，這個(gè)電阻值與電極間距L（cm）正比，與電極的截面積A（cm2）反比，即R =ρ×（L/A）；其中ρ為電阻率,是長(zhǎng)1cm，截面積為1cm2導(dǎo)體的電阻，其大小決定于物質(zhì)的本性。據(jù)上式，導(dǎo)體的電導(dǎo)（G）可表示成下式：G =1/R=（1/ρ）×（A/L）=K×（1/J）；其中，K=1/ρ稱(chēng)為電導(dǎo)率，J =L/A稱(chēng)為電極常數(shù)；電解質(zhì)溶液電導(dǎo)率指相距1cm的兩平行電極間充以1cm3溶液時(shí)所具有的電導(dǎo)。由上式可見(jiàn)，當(dāng)已知電極常數(shù)（J），并測(cè)出溶液電阻（R）或電導(dǎo)（G）時(shí)，即可求出電導(dǎo)率 [1] 福建電導(dǎo)率儀報(bào)價(jià)</p><p style="text-indent:25px">福建電導(dǎo)率儀報(bào)價(jià)</p><p style="text-indent:25px">　熱烈祝賀上海博取環(huán)境技術(shù)有限公司網(wǎng)站成功上線!感謝上海珍島信息技術(shù)有限公司對(duì)我司網(wǎng)站的技術(shù)支持，歡迎新老朋友訪問(wèn)瀏覽網(wǎng)站。　　上海博取環(huán)境技術(shù)有限公司是國(guó)內(nèi)大型的水質(zhì)分析儀器、自動(dòng)化儀器儀表專(zhuān)業(yè)的生產(chǎn)制造企業(yè)，具有**的產(chǎn)品研發(fā)中心，以及齊全的工藝設(shè)備和檢測(cè)設(shè)備，為制造出性能優(yōu)良、質(zhì)量可靠的產(chǎn)品奠定了堅(jiān)實(shí)的基礎(chǔ)。上海博取環(huán)境技術(shù)有限公司經(jīng)過(guò)多年的經(jīng)營(yíng)建立了完善的產(chǎn)品體系。通過(guò)傳統(tǒng)渠道和互聯(lián)網(wǎng)渠道相結(jié)合的方式，形成了完整的營(yíng)銷(xiāo)脈絡(luò)，使貿(mào)易方式更加***豐富。上海博取儀器有限公司把質(zhì)量服務(wù)視為企業(yè)的生命，為使廣大用戶享受完整的配套服務(wù), 完善的技術(shù)咨詢(xún)及完美的售后服務(wù), 多年來(lái)產(chǎn)品服務(wù)不斷升級(jí)，得到廣大用戶的一致好評(píng)!!歡迎大家來(lái)我們公司實(shí)地考察! 　　地址：上海市浦東新區(qū)臨港新城海洋一路333號(hào)臨港科創(chuàng)中心 5#樓 2~5樓福建電導(dǎo)率儀報(bào)價(jià)</p><p style="text-indent:25px">　　上海博取環(huán)境技術(shù)有限公司是國(guó)內(nèi)大型的水質(zhì)分析儀器、自動(dòng)化儀器儀表專(zhuān)業(yè)的生產(chǎn)制造企業(yè)，具有**的產(chǎn)品研發(fā)中心，以及齊全的工藝設(shè)備和檢測(cè)設(shè)備，為制造出性能優(yōu)良、質(zhì)量可靠的產(chǎn)品奠定了堅(jiān)實(shí)的基礎(chǔ)。上海博取環(huán)境技術(shù)有限公司經(jīng)過(guò)多年的經(jīng)營(yíng)建立了完善的產(chǎn)品體系。通過(guò)傳統(tǒng)渠道和互聯(lián)網(wǎng)渠道相結(jié)合的方式，形成了完整的營(yíng)銷(xiāo)脈絡(luò)，使貿(mào)易方式更加***豐富。上海博取環(huán)境技術(shù)有限公司把質(zhì)量服務(wù)視為企業(yè)的生命，為使廣大用戶享受完整的配套服務(wù), 完善的技術(shù)咨詢(xún)及完美的售后服務(wù), 多年來(lái)產(chǎn)品服務(wù)不斷升級(jí)，得到廣大用戶的一致好評(píng)!!歡迎大家來(lái)我們公司實(shí)地考察!</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2929578.html</p></div></div></div></div></div><div id="kovbdeg" class="page-right twoColRt"><div id="3wtvhol" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8tvrsul" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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