1.在入口侧安放一组螺旋型导流叶片，当流体进入流量传感器时，导流叶片迫使流体产生剧烈的旋涡流。当流体进入扩散段时，旋涡流受到回流的作用，开始作二次旋转，形成陀螺式的涡流进动现象 A set of spiral guide vanes is placed on the inlet side. When the fluid enters the flow sensor, the guide vanes force the fluid to generate a violent vortex flow. When the fluid enters the diffusion section, the vortex flow is subjected to the effect of reflux and begins to undergo secondary rotation, forming a gyroscopic vortex precession phenomenon

2.进动频率与流量大小成正比，不受流体物理性质和密度的影响，检测元件测得流体二次旋转进动频率就能在较宽的流量范围内获得良好的线性度 RETZ The precession frequency is proportional to the flow rate, and is not affected by the physical properties and density of the fluid. The detection element can measure the secondary rotational precession frequency of the fluid to obtain good linearity over a wide flow rate range

3.信号经前置放大器放大、滤波、整形转换为与流速成正比的脉冲信号，然后再与温度、压力等检测信号一起被送往微处理器进行积算处理，最后在液晶显示屏上显示出测量结果（瞬时流量、累积流量及温度、压力数据）The signal is amplified, filtered, and transformed into a pulse signal proportional to the flow rate by a preamplifier, and then sent together with jpgtemperature, pressure, and other detection signals to the microprocessor for integration processing. Finally, the measurement results (instantaneous flow, cumulative flow, and temperature, pressure data) are displayed on the LCD screen

进口旋进旋涡流量计 文丘里流量计主要特点 Main features

1.采用16位电脑芯片，集成度高，体积小，性能好，整机功能强 Using 16 bit computer chips, high integration, small size, good performance, and strong overall functionality

2.智能型流量计集流量探头、微处理器、压力、温度传感器于一体，采取内置式组合，使结构更加紧凑，可直接测量流体的流量、压力和温度，并自动实时跟踪补偿和压缩因子修正 The intelligent flowmeter integrates flow probes, microprocessors, pressure, and temperature sensors, and adopts a built-in combination to make the structure more compact. It can directly measure the flow, pressure, and temperature of fluids, and automatically track and compensate for compression factors in real time

3.采用汉字点阵显示屏，显示位数多，读数直观方便，可直接显示工作状态下的体积流量、标准状态下的体积流量、总量，以及介质压力、温度等参数 Chinese character dot matrix display screen is adopted, with multiple display digits and intuitive and convenient reading. It can directly display the volumetric flow rate under working state, volumetric flow rate under standard state, total amount, and parameters such as medium pressure and temperature

4.显示仪可输出频率脉冲、4～20mA模拟信号，并具有RS485接口，可直接与微机联网，传输距离可达1.2km The display can output frequency pulses, 4 to 20mA analog signals, and has an RS485 interface. It can be directly connected to a microcomputer, with a transmission distance of up to 1.2km

5.流量计表头可360度旋转，安装使用简单方便 The flowmeter head can rotate 360 degrees, making installation and use simple and convenient

进口旋进旋涡流量计 文丘里流量计技术参数 Technical parameter

执行标准	GB3836.1-2000\GB3836.2-2000
检定规程速度式流量计(JJG198-1994)
精度等级	1.5级/1.0级
耐压等级铝体(1.6MPa)≤DN150(6.3MPa);不锈钢(4.0MPa)>DN150(4.0MPa);
仪表材质	表体：304不锈钢或铸铝;叶轮：优质铝合金;转换器：铸铝
使用条件环境温度：-30℃~+65℃;相对湿度：5%~95%;介质温度：-20℃~+80℃;大气压力：86kPa~106kPa
防护等级	IP65
工作电源 24V+电池
整机功耗	外电源：<2W;内电源：平均功耗1mW,可连续使用两年以上。
实时记录日记录、月记录、定时间间隔记录
防爆等级	Exd II CT4