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多普勒流速儀廠家 我有新說法
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　　聲學多普勒點式流速儀（Acoustic Doppler Point Velocity Meter）是一種應用聲學多普勒效應原理測量流體介質(zhì)中點速度的儀器。它通過發(fā)送和接收聲波信號，測量流體中散射的聲波頻率變化，從而獲得流速信息。

　　一、產(chǎn)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(wěn)定性好、受環(huán)境因素影響小，無轉(zhuǎn)動件、維護頻次低、工作可靠性高，是便攜流速流量測量的s選產(chǎn)品。

　　二、原理

　　多普勒效應，發(fā)射和接收的超聲波頻率差與流速建立關系，超聲波發(fā)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(huán)境溫度測量用于修正超聲波實際傳播速度。

　　三、產(chǎn)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(nèi)）

　　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(xié)議

　　傳感器防護等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

　　四、產(chǎn)品參數(shù)

　　主機參數(shù)：

　　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IP67

　　充電方式直充

　　待機時長持續(xù)工作8小時

　　顯示參數(shù)流速、液位、溫度、流量

　　現(xiàn)場顯示帶背光的4.3寸觸摸屏

　　數(shù)字接口RS485接口，Modbus協(xié)議。

　　傳感器參數(shù)：

　　流速量程0～10m/s，雙向

　　流速分辨率0.001m/s

　　流速精度0.001m/s（流速<=5m/s時）;0.02m/s或?qū)嶋H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

　　靜壓液位精度±0.1%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

　　安裝支架

　　材質(zhì)金屬，塑料，橡膠

　　防護等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℃

　　工作壓力大6Bar

　　防雷支持

　　防浪涌支持

　　E M I抑制支持

　　五、應用領域

　　海綿城市、河長制管理、內(nèi)河監(jiān)測、自然河流、明渠、管道、養(yǎng)殖等場景

參考資料

參考資料編輯區(qū)域


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