超声多普勒流量模拟器研究

Research on ultrasonic Doppler flowmeter simulator

相对传统的流量计,超声多普勒流量计测量适合于多种工况条件和液体类型的流量测量,在工业流量测量中具有广泛的应用前景。为了适应多普勒流量计性能测试和评估的需要,加快流量计的研制进程,本文通过对油田应用环境的分析,提出了基于DDS(直接数字式频率合成)技术的多普勒流量模拟器的设计。完成了硬件、固件程序及计算机软件的开发。应用结果表明,该模拟器的使用能有效地缩短流量计的研发周期,提高工作效率,降低生产成本。

Compared with the traditional flow meters, ultrasonic doppler flowmeter measurement method has more prominent features because it is suitable for various types of working conditions and liquid flow measurement with a wide range of applications. In order to test and evaluate the performance of doppler flowmeter in the development,suitable oilfield application environment of the Doppler flowmeter was proposed based on DDS （direct digital frequency synthesis）. Finally, the hardware,firmware and computer software of the Doppler flow simulator are designed. Experiments show that the use of the simulator can effectively reduce the development cycle, improve efficiency and reduce production costs.