Acta Metrologica Sinica  2014, Vol. 35 Issue (z1): 154-157    DOI: 10.3969/j.issn.1000-1158.2014.z1.036
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Structure and Metrological Characteristics of Fluidic Household Gas Meters
ZHAN Zhi-jie,WANG Han-tao,SHEN Wen-xin
Zhejiang Institute of Metrology, Hangzhoug, Zhejiang 310018, China
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Abstract  A new type of household gas meter known as a fluidic meter is introduced. The meter utilizes an array of specially designed disks of different thicknesses and shapes to create a bistable flow passage where self-induced, sustained oscillations occur, converting the task of flow-rate measurement to the electronic monitoring of oscillation frequency. The meter meets the measurement standards for the range of flow rate from 0.04 to 1.6 m3/h. Compared with the traditional diaphragm gas meter, this meter features no moving parts, good repeatability, and electronic signal output. The analysis of experimental data shows that the fluidic-type gas meter can satisfy the class 1.5 accuracy requirements. There also appears to be a potential to extend the measurable flow-rate range through further design optimization.
Key wordsMetrology      Fluidic meter      Fluid vibration      Mural effect      Jet element      Flow characteristic curve     
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ZHAN Zhi-jie
WANG Han-tao
SHEN Wen-xin
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ZHAN Zhi-jie,WANG Han-tao,SHEN Wen-xin. Structure and Metrological Characteristics of Fluidic Household Gas Meters[J]. Acta Metrologica Sinica, 2014, 35(z1): 154-157.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2014.z1.036     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2014/V35/Iz1/154
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