一种基于单片机的智能化便携振动管式液体密度计的研制

介绍了一种便携式U - 型振动管液体密度计,该仪器具有使用方便、性能稳定、测量精度
高且样品种类广等优点,可广泛用于各类高精度密度测量。文中介绍了振动管式液体密度传感器的组成结构和工作原理,论述了传感器安装方式对振动管振动的影响,详细阐述了密度信号频率的软同步测量方法,并简要介绍了密度计的硬件电路和软件流程及系统的低功耗设计。
关键词:振动管式密度计;密度传感器;频率测量;软同步;软件补偿
Abstract :This paper introduced a portable U - style tubular vibration liquid densitometer. This densitometer has the advantage of commodious ,stable ,accurate ,and lots different kinds of samples and wide range of density. It can be widely used in any accurate density measurement . The paper introduced the structure and the working principles of the sensor ,
disserted the influence of the sensor’s installation mode to the vibrating - tube ,represented the software synchronous mea2 surement method of the density signal’s frequency. The paper also simply introduced the hardware and software of the densitometer ,and the method of realizing low - power - consumption.
Key Words : Tubular Vibration - Type Densitometer ;Density Sensor ; Frequency Measurement ; Software Synchronism; Compensation by Software