| 1. | Measurement of natural gas flow by ultrasonic flow meter 用气体超声流量计测量天然气流量 |
| 2. | Doppler ultrasonic flow detector 多普勒超声波流量检测仪 |
| 3. | Ultrasonic flow transducer 超声流量传感器 |
| 4. | Ultrasonic flow dtector 超声血流探测器 |
| 5. | Liquid flow in closed conduits using transit - time ultrasonic flow meters , measurement of 用过渡时间超声流量计测量密封管道中的液体流量 |
| 6. | Considering the development state and the existent demerits of the domestic ultrasonic flow measurement technology presently , the following several problems are mainly discussed and solved : 1 考虑到目前国内超声波流量测量技术的发展现状和存在的不足,着重讨论和解决了以下两个方面的问题: 1 |
| 7. | By the introduction of cross - correlation technology and ultrasonic transducer , the ultrasonic flow measurement system can be developed , and the un - contact flow measurement of two - phase flow can be realized , therefore the research of the ultrasonic cross - correlation flowmeter is a subject that has great significance 以互相关技术为基础,采用超声波换能器构成超声流量测量系统,可以实现两相流的非接触测量,因而超声相关流量计的研究是一项有重大意义的课题。 |
| 8. | Ultrasonic flow measurement technology , which developed rapidly in recent several ten years , is a new - style flow measurement technology . it uses the liquid velocity information carried by the ultrasonic when it is propagating in the liquid to measure the flow of liquid . the main merits of the flowmeter is non - contact , high accuracy , wide measurement scope , convenience of installation and maintenance , especially acceptable for measurement of temporary flow , large flow , and flow in dangerous environment 超声波流量测量技术是近几十年来才发展起来的一种新型的流量测量技术,它利用超声波在流体中传播时所载流体的流速信息来测量流体流量,具有非接触、高精度、测量范围宽、安装维护方便等特点,特别适用于临时管道流量、大口径管道流量、以及危险性流体流量的测量。 |
| 9. | The paper introduces basic principle and realizing method of the ultrasonic flow measurement technology . on basis of absorbing and refering to the domestic and foreign advanced ultrasonic flow measurement technology , the intact system hardware is designed and the design idea of the system software is given 本文详细介绍了超声波流量测量技术的基本原理和实现方法,在借鉴和吸收国内外先进的超声波流量测量技术的基础上,设计出了完整的系统硬件,并且给出了系统软件的设计思想。 |
| 10. | In recent ten years , on the basis of development of high - speed digital signal processor and microprocessor , on the basis of research for new - style probe material and technology , on the basis of research for acoustic channel configuration and flow mechanic , the ultrasonic flow measurement technology has obtained a great advancement , showing its strong technical advantage and becoming an important flow measurement technology 近10年来,基于高速数字信号的处理技术与微处理器技术的进步,基于新型探头材料与工艺的研究,基于声道配置及流体动力学的研究,超声波流量测量技术取得了长足的进步,显示了它强劲的技术优势,成为一种重要的流量测量技术。 |