超声流量计

相位差法超声流量计技术的研究

A Study on Phase Difference Ultrasonic Flowmeter

介绍了气体超声流量计的工作原理、干标方法在气体超声流量计标定中的可行性和使用气体超声流量计干标技术的各个步骤及应遵循的几点要求。

The operation principle of gas ultrasonic flowmeter , the importance of dry-measurement method in gas ultra-sonic flowmeter calibration and application procedures as well as the requirement to be met for dry-measurement method are introduced .

利用CFD获取超声流量计截面速度分布

CFD-based method to achieve velocity profile in ultrasonic flowmeter

TDC超声流量计设计中的同频噪声处理

Suppression of similar frequency noise in the design of ultrasonic flow-meter with TDC

在此基础上，以数字信号处理器（DSP）为平台设计了超声流量计，实验分析表明1024点ZOOM-FFT算法在选定频带范围内与16384点FFT有相近的分辨率。

On this basis , the authors designed an ultrasonic Doppler flow-meter by digital signal processor ( DSP ) . The experiment results indicated that the 1024-point ZOOM-FFT has the similar resolution to the 16384-point FFT within a certain frequency range .

实验表明选通细化超声流量计准确度等级为1.5级。

Experiment indicated that this flow meter reached 1.5 precision grade .

气体超声流量计在气田贸易计量系统中的应用

The Application of Gas Ultrasonic Flowmeter in Metering System of Custody Transfer

传播时间法超声流量计信号处理技术进展述评

Review of the Signal Processing Techniques in Transit-Time Ultrasonic Flowmeters

基于改进时差法的超声流量计

Design of Ultrasonic Flow Meter Based on Improved Transit-time Method

用于天然气流量计量的超声流量计

The Ultrasonic Flow Meter Used to Measure Flow Rate of Natural Gas

气体流量测量领域中的新技术&气体超声流量计

A new technique in the field of gas flow measurement

电磁流量计和超声流量计在线验证

On - line Verification of Electromagnetic Flowmeter and Ultrasonic Flowmeter

超声流量计的温度误差与有关参数的计算

The Temperature Error of Ultrasonic Flowmeter and Calculation About the Dependent Parameters

外夹装传播时间法超声流量计应用准则

Application Criteria of Out - clamped Ultrasonic Flowmeter Measuring by Propagating Time

气体超声流量计示值误差的不确定度评定

The Uncertainty Evaluation of Indication Errors for Gas Ultrasonic Flowmeters

渡越时间式超声流量计如果拥挤，那么允许超时。

If traffic is heavy , then allow extra time .

气体超声流量计与孔板流量计在天然气工业中应用的比较

The Application and Comparison of Gas Supersonic Flow Meter and Orifice-Plate Flowmeter

脉动小流量的超声流量计研究

Study on ultrasonic flowmeter of pulsatile flow Little Voice

超声流量计用于液体流量仪表在线校准方法研究

Study on Methods of Online Calibration for Ultrasonic flowmeter Apply to Liquid Flowmeter

存储式超声流量计在配注井分层流量测试中的应用

Application of Memory Ultrasonic Flowmeter to Measuring Zonal Flowrates in Injection Allocating Wells

还介绍了超声流量计四测线声学系统以及用于该系统的插入式传感器。

Four-paths acoustic system and its transducers are presented .

超声流量计在天然气计量系统应用中应注意的问题

Problems of the Supersonic Flowmeter in Cas Metering System

大口径多声道超声流量计的干校验法检定

Dry Calibration Method for Large-Size Multi-Channel Ultrasonic Flow Meters

超声流量计声学系统及其传感器

Acoustic System and its Transducers of Ultrasonic Flowmeter

流程工业用小流量超声流量计

Low Flow Rate Ultrasonic Flowmeter for Process Industry

介绍了存储式超声流量计的仪器结构、测量原理和特点。

Introduced are the structure , measuring principle and speciality of the memory ultrasonic flowmeter .

电磁超声流量计的研制

Development of the Electromagnetism Ultrasonic Flowmeter

气体超声流量计干标方法

Dry-measurement Method for Gas Ultrasonic Flowmeter

超声流量计的一种递推算法

A Recurrence Algorithm for Ultrasonic Flowmeter

生产测井超声流量计研制

Development of Production Logging Ultrasonic Flowmeter