簡要描述：電(dian)(dian)(dian)導(dao)(dao)(dao)率(lv)(lv)探頭(tou)是測(ce)量水質(zhi)(zhi)電(dian)(dian)(dian)導(dao)(dao)(dao)率(lv)(lv)值參(can)數(shu)的電(dian)(dian)(dian)導(dao)(dao)(dao)率(lv)(lv)儀的組成部分或配件。電(dian)(dian)(dian)導(dao)(dao)(dao)率(lv)(lv)，物理學(xue)概(gai)念(nian)，也可以(yi)(yi)稱為導(dao)(dao)(dao)電(dian)(dian)(dian)率(lv)(lv)。在介質(zhi)(zhi)中(zhong)該量與電(dian)(dian)(dian)場強度(du)E之積(ji)等于(yu)(yu)傳(chuan)導(dao)(dao)(dao)電(dian)(dian)(dian)流密度(du)J。對(dui)于(yu)(yu)各(ge)向(xiang)(xiang)同性介質(zhi)(zhi)，電(dian)(dian)(dian)導(dao)(dao)(dao)率(lv)(lv)是標量;對(dui)于(yu)(yu)各(ge)向(xiang)(xiang)異性介質(zhi)(zhi)，電(dian)(dian)(dian)導(dao)(dao)(dao)率(lv)(lv)是張量。生態(tai)學(xue)中(zhong)，電(dian)(dian)(dian)導(dao)(dao)(dao)率(lv)(lv)是以(yi)(yi)數(shu)字表(biao)示的溶液傳(chuan)導(dao)(dao)(dao)電(dian)(dian)(dian)流的能力(li)。單位以(yi)(yi)西門子每米(S/m)表(biao)示。