介紹了一種便攜式U - 型振動管液體密度計(jì),該儀器具有使用方便、性能穩(wěn)定、測量精度
高且樣品種類廣等優(yōu)點(diǎn),可廣泛用于各類高精度密度測量。文中介紹了振動管式液體密度傳感器的組成結(jié)構(gòu)和工作原理,論述了傳感器安裝方式對振動管振動的影響,詳細(xì)闡述了密度信號頻率的軟同步測量方法,并簡要介紹了密度計(jì)的硬件電路和軟件流程及系統(tǒng)的低功耗設(shè)計(jì)。
關(guān)鍵詞:振動管式密度計(jì);密度傳感器;頻率測量;軟同步;軟件補(bǔ)償
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