壓力開(kāi)關(guān)的信號(hào)類(lèi)型
來(lái)源:編輯YY 時(shí)間:2015-06-11 07:51 點(diǎn)擊:次
今天小編主要為大家講解壓力開(kāi)關(guān)的信號(hào)類(lèi)型:
1.開(kāi)關(guān)量
開(kāi)關(guān)量顧名思義它帶有開(kāi)和關(guān)兩種狀態(tài),是一種通斷信號(hào),它可以分為輸入開(kāi)關(guān)量和輸出開(kāi)關(guān)量?jī)煞N。
2.模擬量
模擬量是指一些變化的量,在壓力開(kāi)關(guān)中,模擬量也有輸入和輸出之分,一般情況下,輸入模擬量是為了控制壓力,而輸出模擬量則是用于控制壓力輸出,例如連續(xù)的電壓、電流等信號(hào)量。
3.數(shù)字量
數(shù)字量一般情況是電子式壓力開(kāi)關(guān)輸出的信號(hào),主要是有0和1組成的信號(hào)類(lèi)型,通常是經(jīng)過(guò)編碼后的有規(guī)律的信號(hào)。和模擬量的關(guān)系是量化后的模擬量。
4. 脈沖量
脈沖量是指在瞬間電壓或電流由某一值躍變到另一值的信號(hào)量。在量化后,其連續(xù)規(guī)律的變化就是數(shù)字量,如果其由0變成某一固定值并保持不變,其就是開(kāi)關(guān)量。
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