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您现在的位置:大发体育 > 技术支持 > 电导率测定仪工作原理
电导率测定仪工作原理
发布时间:2018-08-13   点击次数:1246次

电导率是以数字表示溶液传导电流的能力。水的电导率与其所含无机酸、碱、盐的量有一定的关系,当它们的浓度较低时,电导率随着浓度的增大而增加,因此,该指标常用于推测水中离子的总浓度或含盐量。

SHUIZHIYINGDUDANWEIHUANSUAN

大发体育YINGDUDANWEI ppm DEGUOYINGDU FAGUOYINGDU YINGGUOYINGDU

大发体育1ppm = 1.000ppm 0.0560 0.1 0.0702

1DEGUOYINGDU= 17.847ppm 1 1.7847 1.2521

1FAGUOYINGDU= 10.000ppm 0.5603 1 0.7015

1YINGGUOYINGDU= 14.286ppm 0.7987 1.4285 1

DIANDAOLVYUSHUIDEYINGDU

SHUIRONGYEDEDIANDAOLVZHIJIEHERONGJIEGUTILIANGNONGDUCHENGZHENGBI,ERQIEGUTILIANGNONGDUYUEGAO,DIANDAOLVYUEDA。DIANDAOLVHERONGJIEGUTILIANGNONGDUDEGUANXIJINSIBIAOSHIWEI:1.4μS/cm=1ppmHUO2μS/cm=1ppm(MEIBAIWANDANWEICaCO3)。LIYONGDIANDAOLVYIHUOZONGGUTIRONGJIELIANGJIKEYIJIANJIEDEDAOSHUIDEZONGYINGDUZHI,RUQIANSHU,WEILEJINSIHUANSUANFANGBIAN,1μs/cmDIANDAOLV = 0.5ppmYINGDU

DANSHIXUYAOZHUYI:

大发体育(1)YIDIANDAOLVJIANJIECESUANSHUIDEYINGDU,QILILUNWUCHAYUE20-30ppm

(2)RONGYEDEDIANDAOLVDAXIAOJUEDINGFENZIDEYUNDONG,WENDUYINGXIANGFENZIDEYUNDONG,WEILEBIJIAOCELIANGJIEGUO,CESHIWENDUYIBANDINGWEI20℃HUO25℃

(3)CAIYONGSHIJIJIANCEKEYIHUOQUBIJIAOZHUNQUEDESHUIDEYINGDUZHI。

RUANSHUIYUYINGSHUI

SHUIFENWEIRUANSHUI、YINGSHUI,FANBUHANHUOHANYOUSHAOLIANGGAI、MEILIZIDESHUICHENGWEIRUANSHUI,FANZHICHENGWEIYINGSHUI。SHUIDEYINGDUCHENGFEN,RUGUOSHIYOUTANSUANQINGNAHUOTANSUANQINGMEIYINQIDE,XIZANSHIXINGYINGSHUI(ZHUFEIZANSHIXINGYINGSHUI,FENJIEDETANSUANQINGNA,SHENGCHENGDEBURONGXINGTANSUANYANERCHENDIAN,SHUIYOUYINGSHUIBIANCHENGRUANSHUI);RUGUOSHIYOUHANYOUGAI、MEIDELIUSUANYANHUOLVHUAWUYINQIDE,XI*XINGYINGSHUI。YIZHAOSHUIDEZONGYINGDUZHIDAZHIHUAFEN,ZONGYINGDU0-30ppmCHENGWEIRUANSHUI,ZONGYINGDU60ppmYISHANGCHENGWEIYINGSHUI,GAOPINZHIDEYINYONGSHUIBUCHAOGUO25ppm,GAOPINZHIDERUANSHUIZONGYINGDUZAI10ppmYIXIA。ZAITIANRANSHUIZHONG,YUANLICHENGSHIWEISHOUWURANDEYUSHUI、XUESHUISHUYURUANSHUI;QUANSHUI、XISHUI、JIANGHESHUI、SHUIKUSHUI,DUOSHUYUZANSHIXINGYINGSHUI,BUFENDIXIASHUISHUYUGAOYINGDUSHUI。

GUANYUSHUIZHIYINGDUHUANSUANCHANGJIANDANWEIDEHUANSUANYOU :

大发体育1mmol/L(1/2Ca2+ 、 1/2Mg2+)=50 ppm( YI CaC03JI )

1mmol/L(1/2Ca2+、 1/2Mg2+)=2.92grain/gallon(GELING / JIALUN )

lgrain/gallon( GELING / JIALUN ) =17.lppm( YI CaC03JI)

1m3=264gallon (US)( MEIJIALUN )=22O ganon(UK)(YINGJIALUN )

大发体育lkg=2.2pounds ( YINGBANG )

1ppm=1mg/L

大发体育TDS(ZONGRONGJIEXINGGUTI)YONGLAIHENGLIANGSHUIZHONGSUOYOULIZIDEZONGHANLIANG,TONGCHANGYIppmBIAOSHI。

ZAICHUNSHUISHEIZHIZAOYE,DIANDAOLVYEKEYONGLAIJIANJIEBIAOSHICHENGTDS。

RONGYEDEDIANDAOLVDENGYURONGYEZHONGGEZHONGLIZIDIANDAOLVZHIHE。

大发体育JINGYANGONGSHISHI:JIANGYIWEIXIMENZIWEIDANWEIDEDIANDAOLVZHEBANYUEDENGYUTDS(ppm)

大发体育YOUSHITDS YEYONGQITAYANLEIBIAOSHI,RUCaCO3(XISHUZEWEI0.66)

TDSYUDIANDAOLVDEHUANSUANXISHUKEYIZAI0.4-1.0ZHIJIANDIAOJIE,YIDUIYINGBUTONGZHONGLEIDEDIANJIEZHIRONGYE。

DIANDAOLV

DIANDAOLVSHIWUZHICHUANSONGDIANLIUDENENGLI,YUDIANZUZHIXIANGDUI,DANWEISiemens/cm 。

SHUIDEYINGDU

SHUIDEYINGDUSHIZHISHUIZHONGGAI、MEILIZIDENONGDU,YINGDUDANWEISHIppm,1ppmDAIBIAOSHUIZHONGTANSUANGAIHANLIANG1HAOKE/SHENG(mg/L)。

DIANDAO(G)SHIDIANZU(R)DEDAOSHU。YINCIDANGLIANGGEDIANJI(TONGCHANGWEIBODIANJIHUOBOHEIDIANJI)CHARURONGYEZHONG,KEYICECHULIANGDIANJIJIANDEDIANZUR。GENJUOUMUDINGLV,WENDUYIDINGSHI,ZHEIGEDIANZUZHIYUDIANJIJIANJUL(cm)ZHENGBI,YUDIANJIDEJIEMIANJIA(cm2)FANBI,JIR =ρ×(L/A);QIZHONGρWEIDIANZULV,SHIZHANG1cm,JIEMIANJIWEI1cm2DAOTIDEDIANZU,QIDAXIAOJUEDINGYUWUZHIDEBENXING。

JUSHANGSHI,DAOTIDEDIANDAO(G)KEBIAOSHICHENGXIASHI:G =1/R=(1/ρ)×(A/L)=K×(1/J) ;QIZHONG,K=1/ρCHENGWEIDIANDAOLV,J =L/ACHENGWEIDIANJICHANGSHU;DIANJIEZHIRONGYEDIANDAOLVZHIXIANGJU1cmDELIANGPINGXINGDIANJIJIANCHONGYI1cm3RONGYESHISUOJUYOUDEDIANDAO。YOUSHANGSHIKEJIAN,DANGYIZHIDIANJICHANGSHU(J),BINGCECHURONGYEDIANZU(R)HUODIANDAO(G)SHI,JIKEQIUCHUDIANDAOLV

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