压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)精(Jing)确(Que)测(Ce)量(Liang)与(Yu)监(Jian)测(Ce)液(Ye)位(Wei)的(De)重(Zhong)要(Yao)工(Gong)具(Ju)

　(?)　(?)在(Zai)许(Xu)多(Duo)行(Xing)业(Ye)中(Zhong)，(?)准(Zhun)确(Que)地(Di)测(Ce)量(Liang)和(He)监(Jian)测(Ce)液(Ye)体(Ti)的(De)压(Ya)力(Li)和(He)液(Ye)位(Wei)是(Shi)至(Zhi)关(Guan)重(Zhong)要(Yao)的(De)。(?)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)作(Zuo)为(Wei)一(Yi)种(Zhong)常(Chang)用(Yong)的(De)仪(Yi)表(Biao)设(She)备(Bei)，(?)在(Zai)该(Gai)领(Ling)域(Yu)发(Fa)挥(Hui)着(Zhuo)重(Zhong)要(Yao)作(Zuo)用(Yong)。(?)本(Ben)文(Wen)将(Jiang)介(Jie)绍(Shao)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)的(De)原(Yuan)理(Li)、(?)应(Ying)用(Yong)以(Yi)及(Ji)其(Qi)在(Zai)实(Shi)现(Xian)精(Jing)确(Que)测(Ce)量(Liang)和(He)有(You)效(Xiao)监(Jian)控(Kong)液(Ye)体(Ti)状(Zhuang)况(Kuang)方(Fang)面(Mian)所(Suo)起(Qi)到(Dao)的(De)关(Guan)键(Jian)作(Zuo)用(Yong)。(?)

　(?)　(?)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)是(Shi)一(Yi)种(Zhong)能(Neng)够(Gou)将(Jiang)被(Bei)测(Ce)介(Jie)质(Zhi)（(?)如(Ru)水(Shui)、(?)油(You)等(Deng)）(?)的(De)静(Jing)态(Tai)或(Huo)动(Dong)态(Tai)压(Ya)力(Li)转(Zhuan)换(Huan)成(Cheng)标(Biao)准(Zhun)电(Dian)信(Xin)号(Hao)输(Shu)出(Chu)（(?)通(Tong)常(Chang)为(Wei)4-20mA）(?)，(?)并(Bing)通(Tong)过(Guo)传(Chuan)感(Gan)技(Ji)术(Shu)实(Shi)现(Xian)对(Dui)介(Jie)质(Zhi)高(Gao)度(Du)或(Huo)深(Shen)度(Du)进(Jin)行(Xing)连(Lian)续(Xu)准(Zhun)确(Que)测(Ce)量(Liang)的(De)装(Zhuang)置(Zhi)。(?)

　(?)　(?)当(Dang)被(Bei)测(Ce)试(Shi)介(Jie)质(Zhi)施(Shi)加(Jia)了(Liao)外(Wai)部(Bu)压(Ya)力(Li)时(Shi)，(?)这(Zhe)些(Xie)压(Ya)力(Li)会(Hui)通(Tong)过(Guo)传(Chuan)感(Gan)元(Yuan)件(Jian)（(?)如(Ru)薄(Bao)膜(Mo)片(Pian)、(?)双(Shuang)金(Jin)属(Shu)片(Pian)等(Deng)）(?)产(Chan)生(Sheng)微(Wei)小(Xiao)形(Xing)变(Bian)，(?)并(Bing)进(Jin)一(Yi)步(Bu)转(Zhuan)化(Hua)为(Wei)电(Dian)信(Xin)号(Hao)输(Shu)出(Chu)。(?)典(Dian)型(Xing)的(De)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)由(You)传(Chuan)感(Gan)元(Yuan)件(Jian)、(?)信(Xin)号(Hao)处(Chu)理(Li)电(Dian)路(Lu)、(?)外(Wai)壳(Ke)和(He)连(Lian)接(Jie)装(Zhuang)置(Zhi)等(Deng)部(Bu)分(Fen)组(Zu)成(Cheng)。(?)传(Chuan)感(Gan)元(Yuan)件(Jian)负(Fu)责(Ze)将(Jiang)压(Ya)力(Li)信(Xin)号(Hao)转(Zhuan)换(Huan)为(Wei)电(Dian)信(Xin)号(Hao)输(Shu)出(Chu)，(?)而(?)信(Xin)号(Hao)处(Chu)理(Li)电(Dian)路(Lu)可(Ke)以(Yi)对(Dui)电(Dian)信(Xin)号(Hao)进(Jin)行(Xing)放(Fang)大(Da)、(?)滤(Lu)波(Bo)和(He)线(Xian)性(Xing)化(Hua)等(Deng)操(Cao)作(Zuo)。(?)

　(?)　(?)在(Zai)许(Xu)多(Duo)工(Gong)业(Ye)过(Guo)程(Cheng)中(Zhong)，(?)需(Xu)要(Yao)实(Shi)时(Shi)监(Jian)测(Ce)和(He)控(Kong)制(Zhi)液(Ye)体(Ti)的(De)液(Ye)位(Wei)。(?)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)可(Ke)广(Guang)泛(Fan)应(Ying)用(Yong)于(Yu)石(Shi)油(You)化(Hua)工(Gong)、(?)食(Shi)品(Pin)饮(Yin)料(Liao)、(?)水(Shui)处(Chu)理(Li)等(Deng)行(Xing)业(Ye)中(Zhong)，(?)确(Que)保(Bao)生(Sheng)产(Chan)过(Guo)程(Cheng)的(De)安(An)全(Quan)与(Yu)稳(Wen)定(Ding)。(?)地(Di)下(Xia)水(Shui)位(Wei)、(?)污(Wu)水(Shui)槽(Cao)液(Ye)位(Wei)等(Deng)环(Huan)境(Jing)参(Can)数(Shu)的(De)检(Jian)测(Ce)对(Dui)于(Yu)环(Huan)境(Jing)保(Bao)护(Hu)至(Zhi)关(Guan)重(Zhong)要(Yao)。(?)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)可(Ke)以(Yi)提(Ti)供(Gong)准(Zhun)确(Que)的(De)数(Shu)据(Ju)，(?)帮(Bang)助(Zhu)决(Jue)策(Ce)者(Zhe)更(Geng)好(Hao)地(Di)了(Liao)解(Jie)并(Bing)采(Cai)取(Qu)相(Xiang)应(Ying)措(Cuo)施(Shi)。(?)在(Zai)灌(Guan)溉(Gai)系(Xi)统(Tong)或(Huo)水(Shui)库(Ku)中(Zhong)，(?)了(Liao)解(Jie)准(Zhun)确(Que)的(De)水(Shui)位(Wei)信(Xin)息(Xi)非(Fei)常(Chang)重(Zhong)要(Yao)。(?)通(Tong)过(Guo)使(Shi)用(Yong)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)，(?)可(Ke)以(Yi)实(Shi)现(Xian)对(Dui)水(Shui)源(Yuan)利(Li)用(Yong)情(Qing)况(Kuang)的(De)有(You)效(Xiao)监(Jian)控(Kong)和(He)管(Guan)理(Li)。(?)

　(?)　(?)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)具(Ju)有(You)高(Gao)精(Jing)度(Du)和(He)长(Chang)期(Qi)稳(Wen)定(Ding)性(Xing)，(?)能(Neng)够(Gou)提(Ti)供(Gong)准(Zhun)确(Que)的(De)液(Ye)位(Wei)测(Ce)量(Liang)结(Jie)果(Guo)。(?)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)在(Zai)面(Mian)对(Dui)温(Wen)度(Du)、(?)震(Zhen)动(Dong)和(He)电(Dian)磁(Ci)干(Gan)扰(Rao)等(Deng)环(Huan)境(Jing)因(Yin)素(Su)时(Shi)具(Ju)有(You)较(Jiao)好(Hao)的(De)抗(Kang)干(Gan)扰(Rao)能(Neng)力(Li)，(?)保(Bao)证(Zheng)了(Liao)测(Ce)量(Liang)结(Jie)果(Guo)的(De)可(Ke)靠(Kao)性(Xing)。(?)压(Ya)力(Li)液(Ye)位(Wei)变(Bian)送(Song)器(Qi)通(Tong)常(Chang)采(Cai)用(Yong)高(Gao)质(Zhi)量(Liang)材(Cai)料(Liao)制(Zhi)造(Zao)，(?)具(Ju)有(You)较(Jiao)长(Chang)的(De)寿(Shou)命(Ming)，(?)并(Bing)且(Qie)不(Bu)需(Xu)要(Yao)频(Pin)繁(Fan)的(De)维(Wei)护(Hu)或(Huo)校(Xiao)准(Zhun)。(?)