1756-IV16
1756-IV16
以其輸出信號(hào)為標(biāo)準(zhǔn)可將傳感器分為:
模擬傳感器——將被測(cè)量的非電學(xué)量轉(zhuǎn)換成模擬電信號(hào)。
數(shù)字傳感器——將被測(cè)量的非電學(xué)量轉(zhuǎn)換成數(shù)字輸出信號(hào)(包括直接和間接轉(zhuǎn))。
頻率傳感器——將被測(cè)量的信號(hào)量轉(zhuǎn)換成頻率信號(hào)或短周期信號(hào)的輸出(包括
直接或間接轉(zhuǎn)換)。
開關(guān)傳感器——當(dāng)一個(gè)被測(cè)量的信號(hào)達(dá)到某個(gè)特定的閾值時(shí),傳感器相應(yīng)地輸出
一個(gè)設(shè)定的低電平或高電平信號(hào)。
2信號(hào)處理類儀表即二次儀表
弱電上的二次儀表就是常說的控制室儀表??刂剖业膬x表有很多種分類方法:
1。按信號(hào)分類:氣動(dòng)單元組合儀表;電動(dòng)單元組合儀表
2。按結(jié)構(gòu)分類:基地式儀表;單元組合式儀表;組裝式儀表
3。按功能分類:顯示儀表;控制儀表;輔助儀表
4。按安裝位置分類:盤裝表;架裝表
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