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)。

 

 

推薦閱讀：