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jint20130103
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樓主  發(fā)表于: 2015-04-24 16:51
各位大神：
       請教一種熱敏電阻，無(wú)法查詢(xún)型號，室溫下阻值71Ω，加熱后阻值隨溫度升高而增大，應該是PTC（正溫度系數），現在問(wèn)題是我想找到這種熱敏電阻的阻值與溫度的對應關(guān)系表，應該如何下手？另外需要補充：除無(wú)法知道型號外，連材質(zhì)都無(wú)法確認。只知道是德國的。請高手指點(diǎn)~~
endy2015
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1樓  發(fā)表于: 2015-04-24 17:51
可以用根感溫線(xiàn)測插到萬(wàn)用表上測出實(shí)際溫度，然后在看此溫度下，熱敏電阻的阻值變化，多次幾次，看他們的對應關(guān)系，最后求平均值，這只是一個(gè)思路，準不準確需要你實(shí)際去嘗試了

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