聲學(xué)多普勒流速剖面儀是一種基于多普勒效應(yīng)原理的流速測(cè)量設(shè)備，其采用超聲波探測(cè)技術(shù)，能夠?qū)崟r(shí)、準(zhǔn)確地測(cè)量流體的速度和流量。相較于傳統(tǒng)的機(jī)械式流速儀，便攜式多普勒流速流量?jī)x具有更高的測(cè)量精度和穩(wěn)定性。有著測(cè)量精度高、穩(wěn)定性好、受環(huán)境因素影響小等特點(diǎn)，能夠在復(fù)雜的環(huán)境條件下保持穩(wěn)定的性能，以便用戶能夠輕松地進(jìn)行測(cè)量和數(shù)據(jù)分析。
一、產(chǎn)品簡(jiǎn)介
聲學(xué)多普勒流速儀是應(yīng)用于河流、明渠及管道等工況的流速流量檢測(cè)儀器。其采用超聲波探測(cè)技術(shù)，測(cè)量精度高、穩(wěn)定性好、受環(huán)境因素影響小，無轉(zhuǎn)動(dòng)件、維護(hù)頻次低、工作可靠性高，是便攜流速流量測(cè)量的產(chǎn)品。
應(yīng)用：海綿城市、河長制管理、內(nèi)河監(jiān)測(cè)、自然河流、明渠、管道、養(yǎng)殖等場(chǎng)景。
原理：發(fā)射和接收的超聲波頻率差與流速建立關(guān)系，超聲波發(fā)射與接收的時(shí)間差與液位建立關(guān)系，靜壓式液位用于需要測(cè)量液位量程較大的工況，環(huán)境溫度測(cè)量用于修正超聲波實(shí)際傳播速度。
二、產(chǎn)品特點(diǎn)
傳感器支持瞬時(shí)流量與累計(jì)流量功能
能測(cè)靜止水的流速
能測(cè)非滿管、滿管及明渠的流量
能測(cè)矩形、圓形、梯形、三角形截面的流量
流速測(cè)量范圍寬，0~10m/s，雙向
流速測(cè)量精度高，1mm/s誤差
超聲測(cè)量液位精度高，誤差1mm（2m以內(nèi)）
純物理方法測(cè)量，免標(biāo)定，免校準(zhǔn)
支持靜壓測(cè)液位
支持溫度補(bǔ)償流速測(cè)量與液位測(cè)量
ModbusRTU協(xié)議
傳感器防護(hù)等級(jí)IP68，支持長期水下工作
便攜式方案：傳感器+手持機(jī)+測(cè)量桿，手提箱容納所有配件
手提箱尺寸：435*320*135mm
三、技術(shù)參數(shù)
手持機(jī)性能
手 持 機(jī) 尺 寸 | 187*91*30mm |
重 量 | 0.3kg |
存 儲(chǔ) 溫 度 | -20℃~60℃ |
相 對(duì) 濕 度 | 5%~85%（無冷凝） |
防 護(hù) 等 級(jí) | IP67 |
充 電 方 式 | 直充 |
待 機(jī) 時(shí) 長 | 持續(xù)工作 8 小時(shí) |
顯 示 參 數(shù) | 流速、液位、溫度、流量 |
現(xiàn) 場(chǎng) 顯 示 | 帶背光的 4.3 寸觸摸屏 |
數(shù) 字 接 口 | RS485 接口，Modbus 協(xié)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(shí)）；0.02m/s 或?qū)嶋H峰值速度的 0.3%（采 用較大值） （流速>5m/s 時(shí)） |
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(zhì) | 金屬，塑料，橡膠 |
防護(hù)等級(jí) | IP68 |
供電 | 直流 12V / 24V |
功耗 | 測(cè)量時(shí)＜70mA；休眠時(shí)<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?jī)x適用于多種應(yīng)用場(chǎng)景，包括河流、湖泊、水庫、明渠、管道等。特別是在低水位場(chǎng)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(nèi)河監(jiān)測(cè)、自然河流等多種場(chǎng)景的水文監(jiān)測(cè)任務(wù)。
聲學(xué)多普勒流速剖面儀體積小、重量輕，便于攜帶和安裝。同時(shí)，其殼體堅(jiān)固耐用，防水性能優(yōu)良，能夠在惡劣環(huán)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(dòng)或在不同水域進(jìn)行測(cè)量的場(chǎng)合。配備有智能化操作系統(tǒng)和顯示屏，可以實(shí)時(shí)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(jìn)行操作，實(shí)現(xiàn)遠(yuǎn)程數(shù)據(jù)傳輸和智能監(jiān)測(cè)。這不僅提高了測(cè)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(yīng)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(cè)量水流速度。其測(cè)量精度高，適用于弱流至強(qiáng)流的廣泛流速范圍，確保測(cè)量結(jié)果的準(zhǔn)確性。采用非接觸式測(cè)量方式，不破壞流場(chǎng)，不影響水流狀態(tài)，適用于長期監(jiān)測(cè)。這種測(cè)量方式避免了傳統(tǒng)流速測(cè)量?jī)x器對(duì)水流狀態(tài)的干擾，提高了測(cè)量的可靠性和穩(wěn)定性。
隨著現(xiàn)代科技的發(fā)展,聲學(xué)多普勒原理在高科技電子測(cè)量設(shè)備中得到廣泛應(yīng)用。聲學(xué)多普勒流速流量?jī)x是應(yīng)用于河流、明渠及管道等工況的流速流量檢測(cè)儀器。
便攜式流速儀采用了超聲波探測(cè)技術(shù)，使其能夠精確地測(cè)量流體的速度。相較于傳統(tǒng)的機(jī)械式流速儀，多普勒流速流量?jī)x具有更高的測(cè)量精度和穩(wěn)定性。
聲學(xué)多普勒流速剖面儀采用了超聲波探測(cè)技術(shù)，使其能夠精確地測(cè)量流體的速度。相較于傳統(tǒng)的機(jī)械式流速儀，多普勒流速流量?jī)x具有更高的測(cè)量精度和穩(wěn)定性。
便攜式流量計(jì)由流速測(cè)量模塊、液位測(cè)量模塊、溫度測(cè)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(cè)量、存儲(chǔ)和通信于一體。
