水壓力傳感器工作原理

 

水壓力傳感器是采用進口擴散矽或陶瓷芯體作為壓力檢測元件，輸出原始信號
，傳感器原始信號經高性能電子放大器轉換成0-10VDC或4-20mA統(tong)一(yi)輸(shu)出(chu)信(xin)號(hao)

，然(ran)後(hou)將(jiang)信(xin)號(hao)傳(chuan)送(song)到(dao)供(gong)水(shui)係(xi)統(tong)的(de)變(bian)頻(pin)或(huo)儀(yi)器(qi)儀(yi)表(biao)控(kong)製(zhi)係(xi)統(tong)的(de)供(gong)水(shui)壓(ya)力(li)。壓(ya)力(li)傳(chuan)感(gan)器(qi)一(yi)般(ban)安(an)裝(zhuang)在(zai)供(gong)水(shui)係(xi)統(tong)的(de)水(shui)管(guan)道(dao)上(shang)，要(yao)利(li)用(yong)三(san)通(tong)閥(fa)進(jin)行(xing)安(an)裝(zhuang)，如(ru)果(guo)是(shi)容(rong)器(qi)則(ze)可(ke)以(yi)利(li)用(yong)兩(liang)通(tong)閥(fa)進(jin)行(xing)安(an)裝(zhuang)。水(shui)壓(ya)傳(chuan)感(gan)器(qi)芯(xin)體(ti)通(tong)常(chang)選(xuan)用(yong)擴(kuo)散(san)矽(gui)，工(gong)作(zuo)原(yuan)理(li)是(shi)被(bei)測(ce)水(shui)壓(ya)的(de)壓(ya)力(li)直(zhi)接(jie)作(zuo)用(yong)於(yu)傳(chuan)感(gan)器(qi)的(de)膜(mo)片(pian)上(shang)，使(shi)膜(mo)片(pian)產(chan)生(sheng)與(yu)水(shui)壓(ya)成(cheng)正(zheng)比(bi)的(de)微(wei)位(wei)移(yi)

，使(shi)傳(chuan)感(gan)器(qi)的(de)電(dian)阻(zu)值(zhi)發(fa)生(sheng)變(bian)化(hua)
，和(he)用(yong)電(dian)子(zi)線(xian)路(lu)檢(jian)測(ce)這(zhe)一(yi)變(bian)化(hua)
，並(bing)轉(zhuan)換(huan)輸(shu)出(chu)一(yi)個(ge)相(xiang)對(dui)應(ying)壓(ya)力(li)的(de)標(biao)準(zhun)測(ce)量(liang)信(xin)號(hao)。

 

 

水shui壓ya力li傳chuan感gan器qi在zai變bian頻pin供gong水shui設she備bei的de基ji本ben工gong作zuo原yuan理li是shi根gen據ju用yong戶hu用yong水shui量liang變bian化hua自zi動dong調tiao節jie運yun行xing水shui泵beng台tai數shu和he一yi台tai水shui泵beng轉zhuan速su
，使shi水shui泵beng出chu口kou壓ya力li保bao持chi恒heng定ding。當dang用yong戶hu用yong水shui量liang小xiao於yu一yi台tai水shui泵beng出chu水shui量liang是shi，係xi統tong根gen據ju用yong水shui量liang變bian化hua有you一yi台tai水shui泵beng變bian頻pin調tiao速su運yun行xing，當dang用yong水shui量liang增zeng加jia時shi管guan道dao係xi統tong內nei壓ya力li下xia降jiang，這zhe時shi壓ya力li傳chuan感gan器qi把ba檢jian測ce到dao的de信xin號hao傳chuan送song給gei微wei機ji控kong製zhi單dan元yuan
，通tong過guo微wei機ji運yun行xing判pan斷duan，發fa出chu指zhi令ling到dao變bian頻pin器qi，控kong製zhi水shui泵beng電dian機ji，使shi轉zhuan速su加jia快kuai以yi保bao證zheng係xi統tong壓ya力li恒heng定ding，反fan之zhi當dang用yong水shui量liang減jian少shao時shi，使shi水shui泵beng轉zhuan速su減jian慢man
，以yi保bao持chi恒heng壓ya。當dang用yong水shui量liang大da於yu一yi台tai泵beng出chu水shui時shi，第di一yi台tai泵beng切qie換huan到dao工gong頻pin運yun行xing
，第di二er台tai泵beng開kai始shi變bian頻pin調tiao速su運yun行xing，當dang用yong水shui量liang小xiao於yu兩liang台tai泵beng出chu水shui量liang時shi，能neng自zi動dong停ting止zhi一yi台tai或huo二er台tai泵beng運yun行xing。在zai整zheng個ge運yun行xing過guo程cheng中zhong，始shi終zhong保bao持chi係xi統tong恒heng壓ya不bu變bian，使shi水shui泵beng始shi終zhong工gong作zuo在zai高gao校xiao區qu，既ji保bao證zheng用yong戶hu恒heng壓ya供gong水shui，又you節jie省sheng電dian能neng。設she備bei不bu需xu配pei備bei專zhuan職zhi操cao作zuo人ren員yuan。

 

水壓力傳感器的應用

 

水(shui)壓(ya)力(li)傳(chuan)感(gan)器(qi)廣(guang)泛(fan)應(ying)用(yong)於(yu)水(shui)管(guan)道(dao)壓(ya)力(li)
，變(bian)頻(pin)恒(heng)壓(ya)供(gong)水(shui)係(xi)統(tong)，給(gei)排(pai)水(shui)水(shui)泵(beng)壓(ya)力(li)，水(shui)刀(dao)砌(qi)割(ge)機(ji)

，樓(lou)房(fang)樓(lou)宇(yu)供(gong)水(shui)，工(gong)業(ye)或(huo)民(min)用(yong)設(she)備(bei)，環(huan)保(bao)設(she)備(bei)等(deng)測(ce)量(liang)和(he)控(kong)製(zhi)，水(shui)壓(ya)力(li)傳(chuan)感(gan)器(qi)是(shi)為(wei)了(le)解(jie)決(jue)由(you)於(yu)壓(ya)力(li)不(bu)足(zu)，無(wu)法(fa)到(dao)達(da)用(yong)戶(hu)或(huo)設(she)備(bei)用(yong)水(shui)的(de)高(gao)度(du)或(huo)流(liu)量(liang)，而(er)專(zhuan)門(men)研(yan)發(fa)設(she)計(ji)的(de)壓(ya)力(li)傳(chuan)感(gan)器(qi)，用(yong)途(tu)是(shi)非(fei)常(chang)廣(guang)泛(fan)的(de)。

 

 

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