...液体速度检测; RS-232 串行总线; 声光报警 文献标识码 :A 文件编号 :1674-6236 (2009 )07-0052-02 中图分类号 :TM935 [gap=982]Key words : liquid speed testing ; RS232 serial bus ; sound and light alarm ..
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The apparatus constitutes the system of testing the liquid drop speed, the system of controlling the liquid dropping speed, LCD display system, MCS-51 system, the key board and alarming system.
该装置由水滴速度测试系统、滴速控制系统、显示装置、单片机系统、键盘和报警等系统组成。光电传感器用来测量液体滴速,利用步进电动机的转速来控制点滴速度,显示装置利用液晶显示器。
The testing of transmission speed of sonic wave in the gas-liquid two-phase flow indicates that Wood formula can be used to calculate the transmission speed of sonic wave in the two-phase flow.
通过声波在气液两相流中传播速度试验证明,武德近似公式可以用来计算声波在该两相流中的传播速度。
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