一、进口单直通振动管液体密度计概述

单直通振动管液体密度计利用弹簧质量原理来测量液体的密度。测量方法是传感器测量介质的方式。不同的原则各有其优点和局限性。单直管密度传感器通过其独特的设计，具有更先进的测量方法，大大降低了干扰因素，特别是对于重新测量。在含有不相容的材料 (例如: 固体颗粒) 和气泡的条件下，它具有所有传感器的独特性能。它的通畅性和无压阻性使气泡和固体颗粒对其的干扰非常低，并且性能更好。它在自动控制中有更好的效果。

测量管的一部分被电反馈驱动系统 (传输传感器) 激励以振动并保持其固有的共振频率。振动质量的变化 (由于流体密度的变化) 会改变接收传感器时的共振频率。振动管的质量由两部分组成: 振动管本身的质量和振动管中的液体质量。振动管本身的质量在出厂前已经确定，因此振动管中的液体质量由管中的液体密度和体积决定。由于已经确定了管的尺寸和体积，因此振动管中的液体密度与振动管的振动频率有关。信号通过后部电连接器输出到密度处理单元。

分析流技术密度处理单元使用的算法包括温度 (集成到仪表中) 、压力 (通过外部压力变送器输出4-20 mA) 、粘度 (通过外部粘度变送器输出4-20 mA) 和频率偏移。确定被测流体的密度。The single through vibrating tube liquid density meter uses the principle of spring mass to measure the density of liquid. The measurement method is the way in which a sensor measures a medium. Each principle has its own advantages and limitations. The single straight tube density sensor, through its unique design, has more advanced measurement methods, greatly reducing interference factors, especially for re measurement. Under conditions containing incompatible materials (such as solid particles) and bubbles, it exhibits unique properties of all sensors. Its smoothness and non pressure resistance make the interference of bubbles and solid particles very low, and its performance is better. It has better performance in automatic control.

A part of the measuring tube is excited by an electric feedback drive system (transmission sensor) to vibrate and maintain its inherent resonant frequency. The change in vibration mass (due to changes in fluid density) will alter the resonance frequency of the receiving sensor. The mass of a vibrating tube consists of two parts: the mass of the vibrating tube itself and the mass of the liquid in the vibrating tube. The quality of the vibrating tube itself is determined before leaving the factory, so the quality of the liquid in the vibrating tube is determined by the density and volume of the liquid in the tube. Since the size and volume of the tube have been determined, the liquid density in the vibrating tube is related to the vibration frequency of the vibrating tube. The signal is output to the density processing unit through the rear electrical connector.

The algorithms used in the density processing unit of the analytical flow technology include temperature (integrated into the instrument), pressure (outputting 4-20 mA through an external pressure transmitter), viscosity (outputting 4-20 mA through an external viscosity transmitter), and frequency offset. Determine the density of the fluid being tested.

二、进口单直通振动管液体密度计产品特点

1、一体化免维护单直管测量系统

2、电容式触摸屏灵敏度高，耐磨损，寿命长，操作简单便捷

3、全新的算法、独特的标定方案，实现了真正意义上的密度补偿、温度补偿、压力补偿、粘度补偿为高精度打下坚实的基础

4、长期稳定、持续精准的密度浓度在线测量

5、数字化无线终端DTU和云端（PC和手机显示）

6、易清洗、抗磨损、抗腐蚀、不堵塞

7、节能低压损、前后无直管段要求

8、无压损，是测量含气、固液混合浆液的最佳选择

9、拥有独立的两路4-20mA和一路485输出，使用户可全方位选择

1. Integrated maintenance free single straight pipe measurement system

2. Capacitive touch screens have high sensitivity, wear resistance, long lifespan, and simple and convenient operation

3. New algorithms and unique calibration schemes have achieved true density compensation, temperature compensation, pressure compensation, and viscosity compensation, laying a solid foundation for high precision

4. Long term stable and continuously accurate online measurement of density concentration

5. Digital wireless terminal DTU and cloud (PC and mobile display)

6. Easy to clean, wear-resistant, corrosion-resistant, and non clogging

7. Energy saving, low pressure loss, no straight pipe section requirement before and after

8. No pressure loss, it is the best choice for measuring gas containing and solid-liquid mixed slurries

9. Equipped with independent dual 4-20mA and one 485 output, allowing users to choose from all directions

三、进口单直通振动管液体密度计性能参数