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寶德壓力變送器優點:
1、壓力變(bian)送器具有工作可靠(kao)、性能穩定等特點(dian);
2、V/I集成電路,外圍器件少(shao),可(ke)靠性高,維護簡(jian)單(dan)、輕松(song),體積小、重量(liang)輕,安裝(zhuang)調試極為(wei)方便;
3、鋁合金壓鑄外(wai)殼,三端隔離,靜(jing)電(dian)噴塑保護層,堅固耐(nai)用;
4、4-20mA DC二(er)線制信(xin)號傳送,抗干擾(rao)能力(li)強,傳輸距(ju)離遠(yuan);
5、LED、LCD、指針三種指示表頭,現場讀數十分方便。可用于測量粘稠(chou)、結晶(jing)和腐蝕性介(jie)質;
6、高準確度,高穩定性(xing)。除進(jin)口原裝(zhuang)傳感(gan)器已(yi)用(yong)激光修正外,對(dui)整機在使(shi)用(yong)溫度范(fan)圍內的(de)綜合性(xing)溫度漂(piao)移、非線性(xing)進(jin)行(xing)精(jing)細補償。
寶(bao)德壓力(li)變送器工作原理:
寶德(de)壓(ya)(ya)力(li)(li)變(bian)(bian)(bian)(bian)(bian)送器(qi)(qi)感(gan)受(shou)(shou)壓(ya)(ya)力(li)(li)的電(dian)器(qi)(qi)元(yuan)件(jian)一(yi)般為(wei)電(dian)阻應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片,電(dian)阻應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片是一(yi)種將被(bei)測(ce)件(jian)上(shang)的壓(ya)(ya)力(li)(li)轉換成(cheng)為(wei)一(yi)種電(dian)信號的敏感(gan)器(qi)(qi)件(jian)。電(dian)阻應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片應(ying)(ying)用多的是金屬電(dian)阻應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片和半(ban)導體應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片兩種。金屬電(dian)阻應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片又有絲狀(zhuang)應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片和金屬箔狀(zhuang)應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片兩種。通(tong)常是將應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片通(tong)過特殊(shu)的黏(nian)合劑緊密地粘(zhan)合在產(chan)(chan)生(sheng)力(li)(li)學應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)基體上(shang),當(dang)基體受(shou)(shou)力(li)(li)發生(sheng)應(ying)(ying)力(li)(li)變(bian)(bian)(bian)(bian)(bian)化時(shi),電(dian)阻應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片也一(yi)起產(chan)(chan)生(sheng)形變(bian)(bian)(bian)(bian)(bian),使應(ying)(ying)變(bian)(bian)(bian)(bian)(bian)片的阻值(zhi)發生(sheng)改(gai)變(bian)(bian)(bian)(bian)(bian),從而使加在電(dian)阻上(shang)的電(dian)壓(ya)(ya)發生(sheng)變(bian)(bian)(bian)(bian)(bian)化。