Ultrasonic gas meter is the use of ultrasonic wave in the fluid propagation characteristics to measure the flow of fluid,is a new generation of mainstream gas flow measurement products,in which the temperature adapta-bility of the gas meter is an important project to measure the metrologicalperformance.In this project,the metrologi-calperformance of its indication error in the temperature range(-25~55)℃ is analyzed through experimental re-search.The results show that although the metering performance of the gas meter in the high and low temperature environment has a certain degree of deterioration,it still meets the requirements of 1.5,and the technical level of its transducer components still has a large room for improvement.
关键词
超声波燃气表/温度适应性/温度范围/计量性能/流量测量
Key words
ultrasonic gas meter/temperature adaptability/temperature range/metrological performance/flow meas-urement