Cold Heavy Oil Production with or without Sand, CHOP (S), facilities produce a significant
portion of Canada's conventional oil. Methane venting from single-well CHOPS facilities in …

Natural gas imported to Korea has been provided and distributed by the pressure regulating
and metering stations of Korea Gas Corporation (KOGAS) to domestic customers which …

An acoustic measurement system for an industrial process asset includes a process
measurement device providing a value representative of an acoustic signal near the …

This thesis first describes the development and characterization of an optical methane mass
flux sensor, called the VentX, which was designed for use in hazardous locations such as …

管输损耗率是天然气运销企业的重要经济指标, 也是天然气交接双方非常关注的经济参数.
分析了计量系统计量精度, 管存及放空量计算偏差对损耗率的影响, 明确提出计量系统的计量 …

The ultrasonic signal attenuates greatly in the gas medium and is easy to be polluted by
acoustic noise, the periodic error may appear in the ultrasonic transit time detection when …

Worldwide, hydrocarbon flow measurement is governed by regulations. It is well known in
literature that CO2 strongly attenuates wave generated by ultrasonic flow meters, which is …

This study presents the primary design, fabrication process and device measurement of a
Capacitive Micromachined Ultrasonic Transducer (CMUT) for underwater acoustic imaging …

本文應用修正之薄膜振動模型, 聲音輻射阻抗及機電二埠小信號轉換電路,
同時考慮直流偏壓及上電極尺寸的薄膜振動行為, 發展更精確的電容式超音波換能器等效電路 …

The impact of pressure regulator noise on the performance of ultrasonic meters has been
discussed for several years now. This is one of the problems still to be solved in ultrasonic …