声学多普勒流速剖面仪是一种基于多普勒效应原理的流速测量设备，其采用超声波探测技术，能够实时、准确地测量流体的速度和流量。相较于传统的机械式流速仪，便携式多普勒流速流量仪具有更高的测量精度和稳定性。有着测量精度高、稳定性好、受环境因素影响小等特点，能够在复杂的环境条件下保持稳定的性能，以便用户能够轻松地进行测量和数据分析。
一、产品简介
声学多普勒流速仪是应用于河流、明渠及管道等工况的流速流量检测仪器。其采用超声波探测技术，测量精度高、稳定性好、受环境因素影响小，无转动件、维护频次低、工作可靠性高，是便携流速流量测量的产品。
应用：海绵城市、河长制管理、内河监测、自然河流、明渠、管道、养殖等场景。
原理：发射和接收的超声波频率差与流速建立关系，超声波发射与接收的时间差与液位建立关系，静压式液位用于需要测量液位量程较大的工况，环境温度测量用于修正超声波实际传播速度。
二、产品特点
传感器支持瞬时流量与累计流量功能
能测静止水的流速
能测非满管、满管及明渠的流量
能测矩形、圆形、梯形、三角形截面的流量
流速测量范围宽，0~10m/s，双向
流速测量精度高，1mm/s误差
超声测量液位精度高，误差1mm（2m以内）
纯物理方法测量，免标定，免校准
支持静压测液位
支持温度补偿流速测量与液位测量
ModbusRTU协议
传感器防护等级IP68，支持长期水下工作
便携式方案：传感器+手持机+测量杆，手提箱容纳所有配件
手提箱尺寸：435*320*135mm
三、技术参数
手持机性能
手 持 机 尺 寸 | 187*91*30mm |
重 量 | 0.3kg |
存 储 温 度 | -20℃~60℃ |
相 对 湿 度 | 5%~85%（无冷凝） |
防 护 等 级 | IP67 |
充 电 方 式 | 直充 |
待 机 时 长 | 持续工作 8 小时 |
显 示 参 数 | 流速、液位、温度、流量 |
现 场 显 示 | 带背光的 4.3 寸触摸屏 |
数 字 接 口 | RS485 接口，Modbus 协议。 |
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 时）；0.02m/s 或实际峰值速度的 0.3%（采 用较大值） （流速>5m/s 时） |
超 声 液 位 量 程 | 6.5m |
超 声 液 位 精 度 | 0.001m |
超声液位分辨率 | 0.0005m |
静 压 液 位 量 程 | 0~10m（定制） |
静 压 液 位 精 度 | ±0.5%FS |
静压液位分辨率 | 0.001m |
温 度 量 程 | -20~60℃ |
传感器尺寸 | 165*50*29.5mm |
安装 | 专用支架 |
材质 | 金属，塑料，橡胶 |
防护等级 | IP68 |
供电 | 直流 12V / 24V |
功耗 | 测量时＜70mA；休眠时<25mA |
通信接口 | RS485，Modbus |
工作温度 | -20~60℃ |
工作压力 | 最大 6Bar |
防雷 | 支持 |
防浪涌 | 支持 |
EM I抑制 | 支持 |
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便携式多普勒流速流量仪适用于多种应用场景，包括河流、湖泊、水库、明渠、管道等。特别是在低水位场合，只要水位超过一定高度（如15厘米），仪器即可正常工作。此外，该仪器还适用于海绵城市、河长制管理、内河监测、自然河流等多种场景的水文监测任务。
声学多普勒流速剖面仪体积小、重量轻，便于携带和安装。同时，其壳体坚固耐用，防水性能优良，能够在恶劣环境下正常工作。这为用户提供了极大的便利，特别是在需要频繁移动或在不同水域进行测量的场合。配备有智能化操作系统和显示屏，可以实时显示流速、水位、水温等信息。用户可以通过触摸屏或遥控器进行操作，实现远程数据传输和智能监测。这不仅提高了测量的便捷性和效率，还降低了操作难度和人工成本。
超声波多普勒流速仪利用多普勒效应原理，通过超声波与水流中悬浮颗粒（如泥沙、浮游生物）的相互作用，精确测量水流速度。其测量精度高，适用于弱流至强流的广泛流速范围，确保测量结果的准确性。采用非接触式测量方式，不破坏流场，不影响水流状态，适用于长期监测。这种测量方式避免了传统流速测量仪器对水流状态的干扰，提高了测量的可靠性和稳定性。
随着现代科技的发展,声学多普勒原理在高科技电子测量设备中得到广泛应用。声学多普勒流速流量仪是应用于河流、明渠及管道等工况的流速流量检测仪器。
便携式流速仪采用了超声波探测技术，使其能够精确地测量流体的速度。相较于传统的机械式流速仪，多普勒流速流量仪具有更高的测量精度和稳定性。
声学多普勒流速剖面仪采用了超声波探测技术，使其能够精确地测量流体的速度。相较于传统的机械式流速仪，多普勒流速流量仪具有更高的测量精度和稳定性。
便携式流量计由流速测量模块、液位测量模块、温度测量模块、微控制器、通信模块、电源模块等组成，集流速、液位、温度、流量的测量、存储和通信于一体。
