靜(jing)力(li)水準系統是測量兩點間(jian)或(huo)多(duo)點間(jian)相對高程變化的精密儀器。

主要用于大(da)壩、核電站、鐵路、高層建(jian)筑、礦山(shan)、滑坡(po)、橋梁(liang)等垂直(zhi)位移和(he)傾(qing)斜(xie)的監測。

一般安裝在(zai)被測(ce)物體等(deng)高的測(ce)墩上或被測(ce)物體墻壁等(deng)高線上，采(cai)用HC-C800一體化(hua)(hua)模塊化(hua)(hua)自動(dong)測(ce)量單元采(cai)集數據，通(tong)過有線或無(wu)線通(tong)訊與(yu)計算機連接，從而實現自動(dong)化(hua)(hua)觀(guan)測(ce)。

工作原理：靜力水準儀的貯液(ye)(ye)容(rong)器(qi)(qi)相互用通(tong)液(ye)(ye)管*連(lian)(lian)通(tong)，貯液(ye)(ye)容(rong)器(qi)(qi)內注(zhu)入液(ye)(ye)體，當液(ye)(ye)體液(ye)(ye)面(mian)*靜止后系統(tong)中所有連(lian)(lian)通(tong)容(rong)器(qi)(qi)內的液(ye)(ye)面(mian)應在同一個大(da)地水準面(mian)上，此時每一容(rong)器(qi)(qi)的液(ye)(ye)位由傳感器(qi)(qi)測(ce)出差(cha)異沉降(jiang)。

水準儀參數

產品(pin)型號：PT124B-226E

測量范圍：0～500mmH2O；0～1000mmH2O；0～1500mmH2O；0～2500mmH2O；

輸出信(xin)號：RS485

精度：0.02%F.S

供電(dian)：9～24V DC

防護等級：IP67

壓(ya)力介(jie)質：水、防(fang)凍液(ye)、硅油

電氣(qi)連接：防水(shui)四(si)芯插件

系統結構

靜(jing)力水(shui)準(zhun)系統的結構由靜(jing)力水(shui)準(zhun)儀(yi)及安(an)裝(zhuang)架、液體連通管及固定配件(jian)、通氣連通管及固定配件(jian)、干燥管、液體等(deng)組成。安(an)裝(zhuang)方式(shi)分為測(ce)墩(dun)式(shi)安(an)裝(zhuang)和墻壁式(shi)安(an)裝(zhuang)兩(liang)種，視現場條件(jian)和設(she)計要求選定。

測量原理

設傳(chuan)感器(qi)的(de)(de)(de)測(ce)(ce)量范圍(wei)為(wei)(wei)0～1000mmH2O，基(ji)(ji)(ji)準(zhun)(zhun)(zhun)點(dian)(dian)(dian)與(yu)液(ye)箱的(de)(de)(de)液(ye)面(mian)高(gao)(gao)度差(cha)值(zhi)為(wei)(wei)800mm，液(ye)體介質為(wei)(wei)：水(shui)(shui)，密度按1代(dai)入，則(ze)(ze)1000mmH2O產生的(de)(de)(de)壓(ya)力為(wei)(wei)9.8KPa；基(ji)(ji)(ji)準(zhun)(zhun)(zhun)點(dian)(dian)(dian)固定不變，則(ze)(ze)基(ji)(ji)(ji)準(zhun)(zhun)(zhun)點(dian)(dian)(dian)傳(chuan)感器(qi)檢(jian)測(ce)(ce)出液(ye)位(wei)高(gao)(gao)度帶來的(de)(de)(de)壓(ya)力值(zhi)為(wei)(wei)7.84KPa，通(tong)過(guo)數據(ju)(ju)中(zhong)(zhong)心轉換顯(xian)示(shi)(shi)液(ye)位(wei)高(gao)(gao)度值(zhi)：800mmH2O，此數據(ju)(ju)為(wei)(wei)基(ji)(ji)(ji)準(zhun)(zhun)(zhun)參考(kao)數值(zhi)； 監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)以基(ji)(ji)(ji)準(zhun)(zhun)(zhun)點(dian)(dian)(dian)為(wei)(wei)參考(kao)，按段位(wei)布置后(hou)(hou)(hou)，每個(ge)監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)必(bi)然存(cun)在(zai)(zai)些許安(an)(an)(an)裝(zhuang)誤差(cha)，此數值(zhi)不影響后(hou)(hou)(hou)續的(de)(de)(de)數據(ju)(ju)分析，在(zai)(zai)后(hou)(hou)(hou)續的(de)(de)(de)數據(ju)(ju)對(dui)比(bi)(bi)中(zhong)(zhong)代(dai)入基(ji)(ji)(ji)準(zhun)(zhun)(zhun)數值(zhi)即可，可以忽略；假設：1#監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)安(an)(an)(an)裝(zhuang)后(hou)(hou)(hou)實(shi)際(ji)顯(xian)示(shi)(shi)高(gao)(gao)度815mm，2#監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)安(an)(an)(an)裝(zhuang)后(hou)(hou)(hou)實(shi)際(ji)顯(xian)示(shi)(shi)高(gao)(gao)度795mm，3#監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)安(an)(an)(an)裝(zhuang)后(hou)(hou)(hou)實(shi)際(ji)顯(xian)示(shi)(shi)高(gao)(gao)低815mm，4#監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)安(an)(an)(an)裝(zhuang)后(hou)(hou)(hou)時間顯(xian)示(shi)(shi)高(gao)(gao)度802mm，則(ze)(ze)以基(ji)(ji)(ji)準(zhun)(zhun)(zhun)點(dian)(dian)(dian)為(wei)(wei)數值(zhi)參考(kao)，其余(yu)四段監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)的(de)(de)(de)差(cha)值(zhi)作為(wei)(wei)初始(shi)誤差(cha)補償，通(tong)過(guo)軟件設定后(hou)(hou)(hou)成(cheng)為(wei)(wei)常(chang)態，之后(hou)(hou)(hou)便可以開始(shi)實(shi)時監(jian)(jian)測(ce)(ce)沉降。忽略液(ye)體水(shui)(shui)的(de)(de)(de)日常(chang)蒸發，若(ruo)每天監(jian)(jian)測(ce)(ce)的(de)(de)(de)數據(ju)(ju)對(dui)比(bi)(bi)中(zhong)(zhong)，監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)段顯(xian)示(shi)(shi)的(de)(de)(de)高(gao)(gao)度值(zhi)與(yu)基(ji)(ji)(ji)準(zhun)(zhun)(zhun)點(dian)(dian)(dian)差(cha)值(zhi)成(cheng)規律差(cha)值(zhi)增(zeng)加，則(ze)(ze)可判(pan)定地面(mian)有緩慢沉降；若(ruo)監(jian)(jian)測(ce)(ce)點(dian)(dian)(dian)段顯(xian)示(shi)(shi)的(de)(de)(de)高(gao)(gao)度值(zhi)與(yu)基(ji)(ji)(ji)準(zhun)(zhun)(zhun)點(dian)(dian)(dian)的(de)(de)(de)差(cha)值(zhi)增(zeng)加且不規律，則(ze)(ze)地面(mian)沉降可能存(cun)在(zai)(zai)安(an)(an)(an)全隱患，需要及時反應(ying)作出應(ying)對(dui)措施來避免安(an)(an)(an)全隱患。下圖為(wei)(wei)監(jian)(jian)測(ce)(ce)原理圖。