聲學多普勒流速剖面儀是一種基于多普勒效應原理的流速測量設備，其采用超聲波探測技術，能夠實時、準確地測量流體的速度和流量。相較于傳統的機械式流速儀，便攜式多普勒流速流量儀具有更高的測量精度和穩定性。有著測量精度高、穩定性好、受環境因素影響小等特點，能夠在復雜的環境條件下保持穩定的性能，以便用戶能夠輕松地進行測量和數據分析。
一、產品簡介
聲學多普勒流速儀是應用于河流、明渠及管道等工況的流速流量檢測儀器。其采用超聲波探測技術，測量精度高、穩定性好、受環境因素影響小，無轉動件、維護頻次低、工作可靠性高，是便攜流速流量測量的產品。
應用：海綿城市、河長制管理、內河監測、自然河流、明渠、管道、養殖等場景。
原理：發射和接收的超聲波頻率差與流速建立關系，超聲波發射與接收的時間差與液位建立關系，靜壓式液位用于需要測量液位量程較大的工況，環境溫度測量用于修正超聲波實際傳播速度。
二、產品特點
傳感器支持瞬時流量與累計流量功能
能測靜止水的流速
能測非滿管、滿管及明渠的流量
能測矩形、圓形、梯形、三角形截面的流量
流速測量范圍寬，0~10m/s，雙向
流速測量精度高，1mm/s誤差
超聲測量液位精度高，誤差1mm（2m以內）
純物理方法測量，免標定，免校準
支持靜壓測液位
支持溫度補償流速測量與液位測量
ModbusRTU協議
傳感器防護等級IP68，支持長期水下工作
便攜式方案：傳感器+手持機+測量桿，手提箱容納所有配件
手提箱尺寸：435*320*135mm
三、技術參數
手持機性能
手 持 機 尺 寸 | 187*91*30mm |
重 量 | 0.3kg |
存 儲 溫 度 | -20℃~60℃ |
相 對 濕 度 | 5%~85%（無冷凝） |
防 護 等 級 | IP67 |
充 電 方 式 | 直充 |
待 機 時 長 | 持續工作 8 小時 |
顯 示 參 數 | 流速、液位、溫度、流量 |
現 場 顯 示 | 帶背光的 4.3 寸觸摸屏 |
數 字 接 口 | RS485 接口，Modbus 協議。 |
流 速 量 程 | 0～10m/s |
流 速 分 辨 率 | 0.001m/s |
流 速 精 度 | 0.001m/s（流速<=5m/s 時）；0.02m/s 或實際峰值速度的 0.3%（采 用較大值） （流速>5m/s 時） |
超 聲 液 位 量 程 | 6.5m |
超 聲 液 位 精 度 | 0.001m |
超聲液位分辨率 | 0.0005m |
靜 壓 液 位 量 程 | 0~10m（定制） |
靜 壓 液 位 精 度 | ±0.5%FS |
靜壓液位分辨率 | 0.001m |
溫 度 量 程 | -20~60℃ |
傳感器尺寸 | 165*50*29.5mm |
安裝 | 專用支架 |
材質 | 金屬，塑料，橡膠 |
防護等級 | IP68 |
供電 | 直流 12V / 24V |
功耗 | 測量時＜70mA；休眠時<25mA |
通信接口 | RS485，Modbus |
工作溫度 | -20~60℃ |
工作壓力 | 最大 6Bar |
防雷 | 支持 |
防浪涌 | 支持 |
EM I抑制 | 支持 |
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便攜式多普勒流速流量儀適用于多種應用場景，包括河流、湖泊、水庫、明渠、管道等。特別是在低水位場合，只要水位超過一定高度（如15厘米），儀器即可正常工作。此外，該儀器還適用于海綿城市、河長制管理、內河監測、自然河流等多種場景的水文監測任務。
聲學多普勒流速剖面儀體積小、重量輕，便于攜帶和安裝。同時，其殼體堅固耐用，防水性能優良，能夠在惡劣環境下正常工作。這為用戶提供了極大的便利，特別是在需要頻繁移動或在不同水域進行測量的場合。配備有智能化操作系統和顯示屏，可以實時顯示流速、水位、水溫等信息。用戶可以通過觸摸屏或遙控器進行操作，實現遠程數據傳輸和智能監測。這不僅提高了測量的便捷性和效率，還降低了操作難度和人工成本。
超聲波多普勒流速儀利用多普勒效應原理，通過超聲波與水流中懸浮顆粒（如泥沙、浮游生物）的相互作用，精確測量水流速度。其測量精度高，適用于弱流至強流的廣泛流速范圍，確保測量結果的準確性。采用非接觸式測量方式，不破壞流場，不影響水流狀態，適用于長期監測。這種測量方式避免了傳統流速測量儀器對水流狀態的干擾，提高了測量的可靠性和穩定性。
隨著現代科技的發展,聲學多普勒原理在高科技電子測量設備中得到廣泛應用。聲學多普勒流速流量儀是應用于河流、明渠及管道等工況的流速流量檢測儀器。
便攜式流速儀采用了超聲波探測技術，使其能夠精確地測量流體的速度。相較于傳統的機械式流速儀，多普勒流速流量儀具有更高的測量精度和穩定性。
聲學多普勒流速剖面儀采用了超聲波探測技術，使其能夠精確地測量流體的速度。相較于傳統的機械式流速儀，多普勒流速流量儀具有更高的測量精度和穩定性。
便攜式流量計由流速測量模塊、液位測量模塊、溫度測量模塊、微控制器、通信模塊、電源模塊等組成，集流速、液位、溫度、流量的測量、存儲和通信于一體。
