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技術(shù)文章您的位置:網(wǎng)站首頁(yè) >技術(shù)文章 >壓力傳感器選型需要注意哪些參數

壓力傳感器選型需要注意哪些參數

更新時(shí)間:2021-03-29   點(diǎn)擊次數:1338次

壓力傳感器選型的時(shí)候需要關(guān)注的幾個(gè)參數:

1. 額定壓力范圍

額定壓力范圍是滿(mǎn)足標準規定值的壓力范圍。也就是在壓力之間,傳感器輸出符合規定工作特性的壓力范圍。在實(shí)際應用時(shí)傳感器所測壓力在該范圍之內?,F在傳感器的測量能夠達到300MPa或以上。


2. 最大壓力范圍

最大壓力范圍是指傳感器能長(cháng)時(shí)間承受的最大壓力,且不引起輸出特性改變。特別是半導體壓力傳感器,為提高線(xiàn)性和溫度特性,一般都大幅度減小額定壓力范圍。因此,即使在額定壓力以上連續使用也不會(huì )被損壞。一般最大壓力是額定壓力的2-3倍。

3. 損壞壓力

損壞壓力是指能夠加工在傳感器上且不使傳感器元件或傳感器外殼損壞的最大壓力。

4. 線(xiàn)性度

線(xiàn)性度是指在工作壓力范圍內,傳感器輸出與壓力之間直線(xiàn)關(guān)系的最大偏離。

5.壓力遲滯

為在室溫下及工作壓力范圍內,從最小工作壓力和最大工作壓力趨近某一壓力時(shí),傳感器輸出之差。

6.溫度范圍

壓力傳感器的溫度范圍分為補償溫度范圍和工作溫度范圍。補償溫度范圍是由于施加了溫度補償,精度進(jìn)入額定范圍內的溫度范圍。工作溫度范圍是保證壓力傳感器能正常工作的溫度范圍。

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