雨雪量計【TH-YX3】融合高精度傳感與智能識別技術(shù),可同步監(jiān)測降雨、降雪及雨夾雪等多種降水形態(tài)。其核心部件采用抗凍防腐蝕材質(zhì),確保低溫環(huán)境穩(wěn)定運行,配合加熱模塊有效避免積雪結(jié)冰。設(shè)備內(nèi)置自適應(yīng)算法,能根據(jù)降水粒子特性自動切換測量模式,數(shù)據(jù)經(jīng)防誤報處理后通過無線或有線方式實時傳輸。廣泛應(yīng)用于氣象觀測、農(nóng)業(yè)灌溉、交通預(yù)警及水文研究等領(lǐng)域,為精準掌握降水動態(tài)提供可靠支持。
一、工作原理
稱重式雨量計基于稱重原理技術(shù),利用高精度稱重傳感器測量“降水增量”,可進行固態(tài)(降雪)、液態(tài)(降雨)及固液混合態(tài)(雨夾雪、凍雨)等全類型降水量監(jiān)測。
二、硬件配置
稱重式雨量計主要由主控裝置、承雨口、集水器、排水裝置、稱重傳感器、保護外殼、安裝基座、防風(fēng)圈等組成。
符合國標:
中華人民共和國水利部發(fā)布的SL/T 811.4-2021《降水量觀測儀器》水利行業(yè)稱重式雨量計標準。
中華人民共和國氣象局發(fā)布的QX/T 320-2016《稱重式降水測量儀》氣象行業(yè)稱重式雨量計標準。
供電電源】:10~30V DC
平均功耗:
高寒型:30W(配備加熱模塊,供電DC12V)
通訊方式:
脈沖型:使用方通過獲取雨量計的脈沖通斷次數(shù),依據(jù)雨量計相應(yīng)分辨率計算不同時間段內(nèi)的降雨量。
RS485型:雨量計為Modbus-RTU協(xié)議,設(shè)備自帶時鐘,內(nèi)部預(yù)設(shè)了多種已定義好的雨量程序,包括“當天降雨量”、“分鐘降雨量”、“昨日降雨量”、“總降雨量”、“降雨強度”等參數(shù),使用方可通過485指定直接讀取以上降雨量數(shù)據(jù)
分辨率:0.1mm/0.2mm/0.5mm/1mm
雨強范圍:6~1800mm/h
典型精度:
當降水量≤10mm時,最大允許誤差為土0.2mm;
當降水量>10mm時,最大允許誤差為±2%;
工作環(huán)境:-35℃~+65℃,0%RH~95%RH非凝露
主控裝置:
采集稱重傳感器的實時數(shù)據(jù)。
將獲取的重量信息轉(zhuǎn)化為脈沖、RS485輸出信號。
當水量達到設(shè)定閾值,控制排水裝置自動排水。
現(xiàn)場溫度較低,控制加熱設(shè)備加熱,避免雨雪結(jié)冰現(xiàn)象發(fā)生。
承雨口:
承雨口內(nèi)壁深度大于100mm,可保證進入承雨口的降雨不會濺出承雨口外。
承雨口內(nèi)徑φ200+0.6mm
刃口銳角40°~45°
集水器:
集水器位于承雨口下方,收集降水,為不銹鋼材質(zhì)筒型結(jié)構(gòu)。
集水器容量默認為28L,支持聯(lián)動主控裝置控制自動排水。
排水裝置:
當水量達集水器容量的80%時,排水裝置啟動控制自動排水。
排水裝置排水過程約持續(xù)1min,排水期間不計量降雨量,排水結(jié)束后集水器內(nèi)會剩余1-2L左右的液體。
因防凍液與降水混合,過程中會排出部分防凍液,冬季若出現(xiàn)排水現(xiàn)象,注意更換防凍液。
蒸發(fā)抑制油因密度較小,漂浮在液體表層,不會隨液體自動排除。
稱重傳感器:
稱重部件采用壓電式稱重傳感器感應(yīng)壓力變化,將降水增量轉(zhuǎn)化成相應(yīng)的降水量輸出。
稱重傳感器采用封閉式結(jié)構(gòu),承載式稱重方式。
保護外殼:
保護外殼可保護降水稱重單元和降水數(shù)據(jù)處理單元等部位。
保護外殼采用不銹鋼材質(zhì),表面噴涂白色亞光防鹽霧腐蝕涂層。
外殼設(shè)計呈“凸”字型,可起到防風(fēng)、減少蒸發(fā)和增加降水捕獲量的功能
安裝基座:
安裝基座便于裝卸,并對稱重傳感器、排水裝置、主控裝置起到一定的防護作用。
安裝基座牢固、可靠,宜具有減振、調(diào)平功能。
采用不銹鋼材質(zhì),表面噴涂白色亞光防鹽霧腐蝕涂層。
防風(fēng)圈:
防風(fēng)圈由圓形龍骨、T型架、風(fēng)擋單片組成,表面噴涂白色亞光防鹽霧腐蝕涂層。
在有固態(tài)降水監(jiān)測需求的場地,安裝的稱重式雨量計宜加裝防風(fēng)圈。
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安仁县|
铁岭市|
佛坪县|
信阳市|
宁夏|
理塘县|
安义县|
遵化市|
三亚市|
公主岭市|
宜兰县|
茌平县|
阿瓦提县|
随州市|
家居|
梅州市|
西藏|
广昌县|
施甸县|
和林格尔县|
曲周县|
巨野县|
渝中区|
星座|
宁德市|
江油市|
乌鲁木齐县|
新干县|
巴南区|
延长县|
涿州市|