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寶德壓力變送器的工作原理:
寶德壓(ya)力(li)變(bian)(bian)(bian)送器感(gan)受壓(ya)力(li)的(de)(de)電器元件一(yi)般為(wei)電阻(zu)(zu)(zu)應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian),電阻(zu)(zu)(zu)應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)是一(yi)種將被測件上(shang)的(de)(de)壓(ya)力(li)轉換成為(wei)一(yi)種電信號的(de)(de)敏感(gan)器件。電阻(zu)(zu)(zu)應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)應(ying)(ying)用多的(de)(de)是金(jin)屬(shu)電阻(zu)(zu)(zu)應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)和半導體應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)兩種。金(jin)屬(shu)電阻(zu)(zu)(zu)應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)又有絲狀應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)和金(jin)屬(shu)箔狀應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)兩種。通(tong)(tong)常是將應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)通(tong)(tong)過特殊(shu)的(de)(de)黏合劑緊密地粘(zhan)合在產(chan)生(sheng)(sheng)力(li)學應(ying)(ying)變(bian)(bian)(bian)基體上(shang),當(dang)基體受力(li)發(fa)生(sheng)(sheng)應(ying)(ying)力(li)變(bian)(bian)(bian)化(hua)時,電阻(zu)(zu)(zu)應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)也(ye)一(yi)起(qi)產(chan)生(sheng)(sheng)形變(bian)(bian)(bian),使應(ying)(ying)變(bian)(bian)(bian)片(pian)(pian)的(de)(de)阻(zu)(zu)(zu)值發(fa)生(sheng)(sheng)改(gai)變(bian)(bian)(bian),從(cong)而使加在電阻(zu)(zu)(zu)上(shang)的(de)(de)電壓(ya)發(fa)生(sheng)(sheng)變(bian)(bian)(bian)化(hua)。
寶德壓力變送器的性能:
1、使用被測介質廣泛,可測油、水及與316不銹鋼和304不銹鋼兼容的糊狀物,具有一定的防腐能力;
2、高準確度、高穩定性、選用進口原裝傳感器,線性好,溫度穩定性高;
3、體積小、重量輕、安裝、調試、使用方便;
4、不銹鋼全封閉外殼,防水好;
5、壓力傳感器直接(jie)感測被測液位壓力,不受介質起泡、沉積的影響。