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9-18
選(xuan)擇(ze)合適(shi)的(de)(de)(de)溶(rong)解(jie)(jie)氧(yang)儀需(xu)(xu)要考慮(lv)以下幾個(ge)因(yin)素:應(ying)(ying)用場景:首先要明確溶(rong)解(jie)(jie)氧(yang)儀的(de)(de)(de)使用場景。不同(tong)(tong)的(de)(de)(de)應(ying)(ying)用場景需(xu)(xu)要檢(jian)測(ce)的(de)(de)(de)參數(shu)(shu)和精度可能(neng)不同(tong)(tong)。例如,在環(huan)保(bao)監測(ce)領(ling)域,需(xu)(xu)要檢(jian)測(ce)氧(yang)氣的(de)(de)(de)種類和濃度,而在水產養殖領(ling)域,需(xu)(xu)要測(ce)量(liang)水中溶(rong)解(jie)(jie)氧(yang)的(de)(de)(de)含量(liang),因(yin)此需(xu)(xu)要選(xuan)擇(ze)具(ju)(ju)有相(xiang)應(ying)(ying)功能(neng)的(de)(de)(de)溶(rong)解(jie)(jie)氧(yang)儀。參數(shu)(shu)性(xing)能(neng):在購買溶(rong)解(jie)(jie)氧(yang)儀時,需(xu)(xu)要了(le)解(jie)(jie)其(qi)具(ju)(ju)體的(de)(de)(de)參數(shu)(shu)性(xing)能(neng),如測(ce)量(liang)范圍、精度、穩(wen)定性(xing)、重(zhong)復性(xing)、光學穩(wen)定性(xing)、比色方(fang)式、批處理量(liang)等。這些(xie)參數(shu)(shu)直接決(jue)定了(le)溶(rong)解(jie)(jie)氧(yang)儀的(de)(de)(de)性(xing)能(neng)和適(shi)用范圍。操作便(bian)捷(jie)性(xing):考慮(lv)到(dao)實際操作時的(de)(de)(de)便(bian)捷(jie)性(xing),應(ying)(ying)選(xuan)擇(ze)操作簡單、攜帶方(fang)便(bian)...
9-17
哈希硫酸閥(fa)是(shi)一種常(chang)用(yong)的(de)化學(xue)實驗室設備,主要(yao)用(yong)于(yu)控制(zhi)液(ye)體(ti)流量(liang)和精確計量(liang)加入(ru)反應(ying)液(ye)中的(de)物質。它由一個身體(ti)、旋(xuan)鈕(niu)、連接螺紋、調節螺紋、鎖定螺母、齒輪等部件組成。其原理基于(yu)比例控制(zhi)的(de)思想。它使用(yong)旋(xuan)鈕(niu)來改(gai)變活塞(sai)(sai)的(de)位(wei)置,從而調節進出(chu)閥(fa)門(men)下游(you)的(de)液(ye)體(ti)流量(liang)。旋(xuan)鈕(niu)轉動(dong)(dong)(dong)(dong)的(de)角度決定了活塞(sai)(sai)移動(dong)(dong)(dong)(dong)的(de)距(ju)離(li),這樣(yang)就可以控制(zhi)液(ye)體(ti)流量(liang)的(de)大小。當旋(xuan)鈕(niu)向(xiang)左或向(xiang)右旋(xuan)轉時,連接螺紋轉動(dong)(dong)(dong)(dong),從而推動(dong)(dong)(dong)(dong)活塞(sai)(sai)前(qian)后(hou)移動(dong)(dong)(dong)(dong),并通過(guo)管道在不同的(de)位(wei)置開啟或關閉閥(fa)門(men),從而控制(zhi)液(ye)體(ti)的(de)流入(ru)和流出(chu)。哈希硫酸閥(fa)的(de)主要(yao)部件包括(kuo)身體(ti)、進口和出(chu)口連接螺紋、...
9-13
在線LDO分(fen)析儀是(shi)一種(zhong)用于(yu)測量線性(xing)(xing)(xing)降(jiang)壓(ya)穩(wen)壓(ya)器(LDO)性(xing)(xing)(xing)能和(he)(he)特性(xing)(xing)(xing)的儀器。LDO是(shi)一種(zhong)常見的電(dian)源管理器件,廣泛應用于(yu)各種(zhong)電(dian)子設(she)備中,如移動(dong)通信(xin)、計算(suan)機、工業自動(dong)化(hua)等(deng)領域。可以(yi)幫助工程(cheng)師評估和(he)(he)優化(hua)LDO的穩(wen)定(ding)性(xing)(xing)(xing)、負載(zai)響應和(he)(he)功耗等(deng)性(xing)(xing)(xing)能指標(biao)。在線LDO分(fen)析儀的使(shi)用步(bu)驟通常如下:1.連接LDO:將待測試(shi)的LDO正確連接到(dao)LDO分(fen)析儀的測試(shi)端(duan)口,確保連接正常。2.設(she)置(zhi)測試(shi)參數:通過測試(shi)控制模塊(kuai)設(she)置(zhi)所(suo)需的測試(shi)參數,例(li)如輸入電(dian)壓(ya)范(fan)圍、負載(zai)電(dian)流等(deng)。3.開(kai)始測試(shi):啟動(dong)LDO分(fen)析儀,它會根據設(she)置(zhi)的...
8-23
Cod濕度(du)(du)(du)(du)(du)(du)傳感(gan)(gan)器(qi)是(shi)一種常(chang)用(yong)(yong)的(de)(de)濕度(du)(du)(du)(du)(du)(du)測(ce)量(liang)(liang)設備(bei),用(yong)(yong)于測(ce)量(liang)(liang)環境中(zhong)(zhong)的(de)(de)濕度(du)(du)(du)(du)(du)(du)水(shui)分(fen)含量(liang)(liang)。基于電(dian)(dian)(dian)容(rong)(rong)變化(hua)原(yuan)理,通過測(ce)量(liang)(liang)介(jie)質(zhi)中(zhong)(zhong)的(de)(de)濕度(du)(du)(du)(du)(du)(du)引起(qi)的(de)(de)電(dian)(dian)(dian)容(rong)(rong)變化(hua)來確定(ding)濕度(du)(du)(du)(du)(du)(du)水(shui)分(fen)含量(liang)(liang)。工作原(yuan)理基于電(dian)(dian)(dian)容(rong)(rong)變化(hua)原(yuan)理。它由兩個(ge)電(dian)(dian)(dian)極(ji)構成,其中(zhong)(zhong)一個(ge)電(dian)(dian)(dian)極(ji)是(shi)感(gan)(gan)濕電(dian)(dian)(dian)極(ji),另(ling)一個(ge)電(dian)(dian)(dian)極(ji)是(shi)參考電(dian)(dian)(dian)極(ji)。當介(jie)質(zhi)中(zhong)(zhong)的(de)(de)濕度(du)(du)(du)(du)(du)(du)發生變化(hua)時,感(gan)(gan)濕電(dian)(dian)(dian)極(ji)上(shang)的(de)(de)水(shui)分(fen)會引起(qi)電(dian)(dian)(dian)容(rong)(rong)的(de)(de)變化(hua)。Cod濕度(du)(du)(du)(du)(du)(du)傳感(gan)(gan)器(qi)具有以(yi)下特點:1.高(gao)精度(du)(du)(du)(du)(du)(du):具有較(jiao)高(gao)的(de)(de)濕度(du)(du)(du)(du)(du)(du)測(ce)量(liang)(liang)精度(du)(du)(du)(du)(du)(du)。它能夠提(ti)供準確的(de)(de)濕度(du)(du)(du)(du)(du)(du)測(ce)量(liang)(liang)結果,使(shi)用(yong)(yong)戶能夠了(le)解環境中(zhong)(zhong)的(de)(de)濕度(du)(du)(du)(du)(du)(du)水(shui)分(fen)含量(liang)(liang)。2.快速(su)(su)響應(ying):具有快速(su)(su)的(de)(de)響應(ying)速(su)(su)度(du)(du)(du)(du)(du)(du)。它能夠迅速(su)(su)感(gan)(gan)知和反應(ying)...
8-22
哈(ha)(ha)希HACH試(shi)(shi)劑(ji)(ji)是(shi)一種常見的(de)水(shui)質檢測(ce)(ce)試(shi)(shi)劑(ji)(ji),用于檢測(ce)(ce)水(shui)中(zhong)各種化學物質的(de)含(han)量(liang)。它的(de)使用方法相(xiang)對比較簡單,下面將(jiang)(jiang)詳(xiang)細介(jie)紹哈(ha)(ha)希HACH試(shi)(shi)劑(ji)(ji)的(de)使用步驟(zou)。1、準備樣(yang)(yang)品。首先需要(yao)(yao)從(cong)待(dai)測(ce)(ce)水(shui)源中(zhong)采集(ji)一定量(liang)的(de)水(shui)樣(yang)(yang),并將(jiang)(jiang)其放入一個干凈(jing)的(de)容器中(zhong)。注意,采集(ji)水(shui)樣(yang)(yang)的(de)容器必須(xu)干凈(jing),并且不(bu)含(han)任何可能影響測(ce)(ce)試(shi)(shi)結果的(de)物質。2、添加(jia)試(shi)(shi)劑(ji)(ji)。將(jiang)(jiang)相(xiang)應試(shi)(shi)劑(ji)(ji)加(jia)入到水(shui)樣(yang)(yang)中(zhong),按照試(shi)(shi)劑(ji)(ji)說明(ming)書(shu)中(zhong)的(de)指示(shi)進(jin)(jin)行操(cao)作。通常情況下,試(shi)(shi)劑(ji)(ji)的(de)添加(jia)量(liang)和順(shun)序都是(shi)非常重要(yao)(yao)的(de),需要(yao)(yao)嚴格(ge)按照說明(ming)書(shu)的(de)要(yao)(yao)求進(jin)(jin)行操(cao)作。3、進(jin)(jin)行反應。將(jiang)(jiang)試(shi)(shi)劑(ji)(ji)加(jia)入水(shui)樣(yang)(yang)后,需要(yao)(yao)等待(dai)一...
8-21
在(zai)線(xian)(xian)濁(zhuo)度(du)(du)(du)儀(yi)1720e是(shi)一(yi)種用于測量(liang)(liang)液體濁(zhuo)度(du)(du)(du)的(de)(de)(de)(de)先(xian)進儀(yi)器(qi)。它(ta)采(cai)用了最新的(de)(de)(de)(de)技術(shu)和(he)設計,具(ju)有(you)高(gao)精度(du)(du)(du)、穩(wen)定性(xing)和(he)可靠性(xing)。主要特點之一(yi)是(shi)其(qi)高(gao)精度(du)(du)(du)測量(liang)(liang)能力。該儀(yi)器(qi)采(cai)用了先(xian)進的(de)(de)(de)(de)光學傳感(gan)器(qi),能夠準(zhun)確(que)地測量(liang)(liang)液體中(zhong)的(de)(de)(de)(de)微小(xiao)顆粒(li)或懸浮(fu)物(wu)的(de)(de)(de)(de)濃(nong)度(du)(du)(du)。無論是(shi)在(zai)清(qing)澈的(de)(de)(de)(de)液體中(zhong)還是(shi)在(zai)高(gao)濁(zhuo)度(du)(du)(du)的(de)(de)(de)(de)樣品中(zhong),儀(yi)器(qi)都能提供準(zhun)確(que)的(de)(de)(de)(de)測量(liang)(liang)結(jie)果。這(zhe)對于許多行(xing)業來說非常(chang)重要,如飲(yin)用水(shui)處理、廢水(shui)處理、制藥和(he)食(shi)品加工(gong)等。除了高(gao)精度(du)(du)(du)外,在(zai)線(xian)(xian)濁(zhuo)度(du)(du)(du)儀(yi)1720e還具(ju)有(you)出色(se)的(de)(de)(de)(de)穩(wen)定性(xing)。它(ta)采(cai)用了先(xian)進的(de)(de)(de)(de)自動補(bu)償技術(shu),可以校正環境因素(su)對測量(liang)(liang)結(jie)果的(de)(de)(de)(de)影響。溫度(du)(du)(du)、壓...
8-3
氫(qing)(qing)氧化鉀(jia)濃(nong)(nong)度計(ji)是一種用于測(ce)(ce)(ce)量(liang)(liang)氫(qing)(qing)氧化鉀(jia)(KOH)溶(rong)(rong)液濃(nong)(nong)度的(de)(de)儀(yi)器。它可(ke)以通過(guo)測(ce)(ce)(ce)定溶(rong)(rong)液的(de)(de)pH值(zhi)或者電(dian)(dian)導率(lv)來間接反映(ying)溶(rong)(rong)液中氫(qing)(qing)氧化鉀(jia)的(de)(de)濃(nong)(nong)度。氫(qing)(qing)氧化鉀(jia)濃(nong)(nong)度計(ji)的(de)(de)工(gong)作原理和(he)構(gou)造說明(ming):通常(chang)由(you)以下主要部件組成:控制單(dan)(dan)元、傳(chuan)感(gan)器和(he)顯(xian)示屏(ping)。控制單(dan)(dan)元負責(ze)對傳(chuan)感(gan)器進行信號處(chu)理和(he)數據(ju)分析,然(ran)后將結果通過(guo)顯(xian)示屏(ping)或其(qi)他輸出方式呈現給用戶。傳(chuan)感(gan)器是測(ce)(ce)(ce)量(liang)(liang)氫(qing)(qing)氧化鉀(jia)溶(rong)(rong)液性質的(de)(de)關鍵部件。根據(ju)采用的(de)(de)測(ce)(ce)(ce)量(liang)(liang)方法不同,傳(chuan)感(gan)器可(ke)以是pH電(dian)(dian)極(ji)或電(dian)(dian)導率(lv)傳(chuan)感(gan)器。當使用pH測(ce)(ce)(ce)量(liang)(liang)方法時,pH電(dian)(dian)極(ji)被(bei)浸入(ru)待測(ce)(ce)(ce)溶(rong)(rong)液中。pH電(dian)(dian)極(ji)由(you)玻璃膜和(he)參比電(dian)(dian)極(ji)...
7-23
DKK電位滴(di)(di)定(ding)(ding)(ding)裝(zhuang)(zhuang)置(zhi)是(shi)(shi)一種常(chang)用(yong)(yong)于分析化學(xue)實驗室中(zhong)(zhong)的(de)儀器(qi),用(yong)(yong)于測(ce)定(ding)(ding)(ding)溶液(ye)(ye)中(zhong)(zhong)特定(ding)(ding)(ding)物(wu)質的(de)濃度。該裝(zhuang)(zhuang)置(zhi)基于電位滴(di)(di)定(ding)(ding)(ding)原理,通過滴(di)(di)加(jia)滴(di)(di)定(ding)(ding)(ding)劑到待測(ce)溶液(ye)(ye)中(zhong)(zhong),并同(tong)時(shi)監測(ce)電位變化來確(que)(que)定(ding)(ding)(ding)滴(di)(di)定(ding)(ding)(ding)終點。DKK電位滴(di)(di)定(ding)(ding)(ding)裝(zhuang)(zhuang)置(zhi)由以下組成部分構成:1.滴(di)(di)定(ding)(ding)(ding)電極:滴(di)(di)定(ding)(ding)(ding)電極是(shi)(shi)裝(zhuang)(zhuang)置(zhi)的(de)核(he)心部分,用(yong)(yong)于將滴(di)(di)定(ding)(ding)(ding)劑滴(di)(di)加(jia)到待測(ce)溶液(ye)(ye)中(zhong)(zhong),并測(ce)量電位的(de)變化。通常(chang)使用(yong)(yong)玻璃電極或參比電極作為滴(di)(di)定(ding)(ding)(ding)電極。2.滴(di)(di)定(ding)(ding)(ding)瓶(ping):滴(di)(di)定(ding)(ding)(ding)瓶(ping)是(shi)(shi)用(yong)(yong)于盛放(fang)待測(ce)溶液(ye)(ye)和滴(di)(di)定(ding)(ding)(ding)劑的(de)容(rong)器(qi)。它(ta)通常(chang)具有一個精確(que)(que)的(de)刻度,以便準(zhun)確(que)(que)地(di)測(ce)量添加(jia)的(de)滴(di)(di)定(ding)(ding)(ding)劑體積。3.滴(di)(di)定(ding)(ding)(ding)劑:滴(di)(di)定(ding)(ding)(ding)劑是(shi)(shi)用(yong)(yong)于與待測(ce)溶液(ye)(ye)...
7-21
氟(fu)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)濃(nong)度(du)(du)計是(shi)一種(zhong)用(yong)于(yu)測量水(shui)體(ti)中(zhong)氟(fu)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)濃(nong)度(du)(du)的(de)儀器。氟(fu)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)在(zai)環境和健康方面具有(you)重要意義,因此監(jian)測水(shui)中(zhong)的(de)氟(fu)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)濃(nong)度(du)(du)對于(yu)保(bao)護公眾健康至關(guan)重要。主要組成部分包(bao)括電(dian)(dian)(dian)極(ji)、電(dian)(dian)(dian)路(lu)和顯(xian)示屏。首先(xian),準備一個專門(men)用(yong)于(yu)檢(jian)測氟(fu)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)的(de)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)選擇(ze)性(xing)電(dian)(dian)(dian)極(ji)。離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)選擇(ze)性(xing)電(dian)(dian)(dian)極(ji)是(shi)一種(zhong)特殊的(de)電(dian)(dian)(dian)極(ji),能(neng)夠選擇(ze)性(xing)地響應(ying)特定(ding)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)的(de)濃(nong)度(du)(du)變化。對于(yu)測量氟(fu)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)濃(nong)度(du)(du),可以使用(yong)氟(fu)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)選擇(ze)性(xing)電(dian)(dian)(dian)極(ji)。將(jiang)氟(fu)離(li)(li)(li)子(zi)(zi)(zi)(zi)(zi)選擇(ze)性(xing)電(dian)(dian)(dian)極(ji)連接(jie)到(dao)一個電(dian)(dian)(dian)路(lu)上。電(dian)(dian)(dian)路(lu)的(de)功能(neng)是(shi)將(jiang)電(dian)(dian)(dian)極(ji)產生的(de)信號轉換為(wei)可讀取的(de)數字或模擬值。電(dian)(dian)(dian)路(lu)可以包(bao)括放大器、濾(lv)波器和模數轉換器等元件(jian)。通過電(dian)(dian)(dian)...
7-17
1、系統(tong)全密(mi)(mi)閉問(wen)題(ti)(ti)。卡(ka)爾-費休試(shi)(shi)(shi)劑液路部分連(lian)接(jie)一定(ding)要(yao)緊固,從試(shi)(shi)(shi)劑瓶到計量(liang)泵再到反應(ying)池,否則(ze)發生試(shi)(shi)(shi)劑泄漏將直接(jie)影(ying)響測(ce)試(shi)(shi)(shi)結(jie)果。其(qi)不密(mi)(mi)閉的(de)另(ling)一個問(wen)題(ti)(ti)是測(ce)試(shi)(shi)(shi)時由于卡(ka)爾費休試(shi)(shi)(shi)劑在試(shi)(shi)(shi)驗中吸(xi)收空氣水(shui)分,會(hui)導(dao)致滴定(ding)終(zhong)點延遲。2、取(qu)樣的(de)準確問(wen)題(ti)(ti)。在標定(ding)卡(ka)爾-費休試(shi)(shi)(shi)劑時需(xu)要(yao)取(qu)用10mg水(shui),盡量(liang)使用10ul取(qu)樣器,這樣不但準確、速度快,還能夠防止水(shui)滴粘附。同樣地,取(qu)用甲醇(chun)試(shi)(shi)(shi)劑、乙酯也有類(lei)似的(de)問(wen)題(ti)(ti),取(qu)放完畢后應(ying)注意盡量(liang)縮短反應(ying)池打開的(de)時間(jian)。3、磁(ci)性攪拌速度調整。在反應(ying)池中,因為滴定(ding)試(shi)(shi)(shi)劑加(jia)入時在局部,...