Wace ilimin ka'ida ya kamata a ƙware yayin amfani da mitar ɗawainiya? Na farko, don guje wa polarization na lantarki, mitar tana haifar da siginar siginar sine mai tsayayye kuma tana amfani da ita ga lantarki. Halin da ke gudana ta hanyar lantarki yana daidai da ƙaddamarwar maganin da aka auna. Bayan mitar ta canza halin yanzu daga babban amplifier na aiki mai ƙarfi zuwa siginar wutar lantarki, Bayan haɓaka siginar sarrafa shirye-shiryen, ganowar lokaci-lokaci da tacewa, ana samun yuwuwar siginar da ke nuna halayen aiki; microprocessor yana jujjuya ta cikin maɓalli don yin samfurin siginar zafin jiki da siginar gudanarwa. Bayan ƙididdigewa da ƙimar zafin jiki, ana samun maganin da aka auna a 25 ° C. Ƙimar gudanarwa a lokacin da ƙimar zafin jiki a lokacin.
Wurin lantarki wanda ke haifar da ions don motsawa a cikin maganin da aka auna yana samuwa ta hanyar lantarki guda biyu waɗanda ke hulɗa kai tsaye tare da maganin. Dole ne a yi nau'ikan ma'aunin ma'auni biyu da kayan juriyar sinadarai. A aikace, ana amfani da kayan kamar titanium sau da yawa. Ma'aunin lantarki wanda ya ƙunshi na'urori biyu ana kiransa Kohlrausch electrode.
Ma'auni na conductivity yana buƙatar bayyana abubuwa biyu. Ɗayan shine ƙaddamarwar maganin, ɗayan kuma shine dangantakar geometric na 1 / A a cikin bayani. Ana iya samun ƙarfin aiki ta hanyar auna halin yanzu da ƙarfin lantarki. Ana amfani da wannan ƙa'idar auna a cikin kayan aunawa kai tsaye na yau.
Kuma K=L/A
A——Tasirin farantin na'urar aunawa
L——Nisa tsakanin faranti biyu
Ana kiran ƙimar wannan tantanin halitta. A gaban daidaitaccen filin lantarki tsakanin na'urorin lantarki, ana iya ƙididdige yawan wutar lantarki ta hanyar ma'auni na geometric. Lokacin da faranti biyu masu murabba'i masu faɗin 1cm2 suka rabu da 1cm don samar da na'urar lantarki, madaurin wannan lantarki shine K=1cm-1. Idan darajar conductivity G = 1000μS da aka auna tare da wannan nau'in na'urorin lantarki, to, ƙaddamarwar maganin da aka gwada K = 1000μS / cm.
A cikin yanayi na al'ada, lantarki yakan haifar da wani ɓangaren filin lantarki mara iri ɗaya. A wannan lokacin, dole ne a ƙayyade ƙwayar tantanin halitta tare da daidaitaccen bayani. Daidaitaccen mafita gabaɗaya suna amfani da maganin KCl. Wannan saboda halayen KCl yana da ƙarfi sosai kuma daidai a ƙarƙashin yanayi daban-daban da yawa. Ƙarfafawar 0.1mol/l KCl bayani a 25 ° C shine 12.88mS/CM.
Wurin da ake kira filin lantarki marar Uniform (wanda kuma ake kira filin da ba daidai ba, filin leakage) ba shi da dindindin, amma yana da alaƙa da nau'i da kuma tattarawar ions. Saboda haka, tsantsar wutar lantarkin filin da ba ta dace ba ita ce mafi munin lantarki, kuma ba za ta iya biyan buƙatun kewayon ma'auni mai faɗi ta hanyar daidaitawa ɗaya ba.
2. Menene filin aikace-aikacen na'urar mita?
Abubuwan da ake amfani da su: Ana iya amfani da shi ko'ina a cikin ci gaba da lura da dabi'un halayen halayen a cikin mafita kamar ikon thermal, takin mai magani, ƙarfe, kare muhalli, magunguna, biochemicals, abinci da ruwan famfo.
3.What ne cell akai na conductivity mita?
"Bisa ga dabara K = S / G, ana iya samun tantanin halitta ta tantanin halitta ta hanyar auna nauyin G na electrode conductivity a cikin wani nau'i na maganin KCL. A wannan lokacin, an san halayen S na KCL bayani.
Matsakaicin na'urar firikwensin ɗawainiya yana kwatanta daidaitattun kaddarorin na'urorin lantarki guda biyu na firikwensin. Yana da rabo na tsawon samfurin a cikin wuri mai mahimmanci tsakanin 2 electrodes. Yana rinjayar hankali da daidaiton ma'auni kai tsaye. Ma'auni na samfurori tare da ƙananan ƙarancin aiki yana buƙatar ƙananan ƙwayoyin salula. Ma'auni na samfurori tare da high conductivity yana buƙatar ƙananan ƙwayoyin salula. Dole ne kayan aunawa su san tantanin tantanin halitta na firikwensin ɗawainiya da aka haɗa kuma ya daidaita ƙayyadaddun karatun daidai.
4. Menene ma'auni na tantanin halitta na mitar tafiyarwa?
Electrode conductivity electrode a halin yanzu shine nau'in lantarki da aka fi amfani dashi a China. Tsarin na'urar gwaji ta biyu-electrode conductivity electrode shine don haɗa zanen gadon platinum guda biyu akan filayen gilashi guda biyu ko bangon ciki na bututun gilashin don daidaita takardar platinum Yanki da nisa za'a iya sanya su cikin na'urori masu ɗaukar nauyi tare da ƙima daban-daban. Yawancin lokaci akwai K=1, K=5, K=10 da sauran nau'ikan.
Ka'idar na'urar mita yana da matukar muhimmanci. Lokacin zabar samfur, dole ne kuma ku zaɓi masana'anta mai kyau.
Lokacin aikawa: Dec-15-2021