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| The Effect and Analysis of Combustion Equation Applied in Dynamic Measurement of Remote Sensing Equipment for Motor Vehicle Exhaust |
| SHEN Shang-yi1,LIAO Xiao-qin2,ZHANG Guo-cheng1,YANG Yang1,YANG Zhen-qi1,LÜ Chao1 |
1. Beijing Institute of Metrology, Beijing 100029, China
2. China Association of Environmental Protection Industry, Beijing 100037, China |
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Abstract Remote sensing of exhaust gas is widely applied in vehicle emission monitoring. However, the evaluation method for dynamic measurement is limited. Two kinds of static calibration device were compared, the results showed that the assistant computation of combustion equation corrected the measuring data and avoided the influence of diffusion of plume. According to molecular weight difference of C3H8 and 1,3-C4H6 in combustion equation, the ratio of each component in standard gas was definite. And two kinds standard gas were prepared and verified by dynamic measurement. The results indicated that the gas components accorded with the combustion equation could evaluate the accuracy of monitoring date for low concentration components. Thus, the results of the researche could guidance the preparation of standard gas for remote sensing equipment, and enrich the testing methods for dynamic measurement.
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Received: 11 March 2021
Published: 21 February 2023
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2023, Vol. 44 
