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On-board device for representative sampling of particles in ambient air, in particular for studying atmospheric pollution
On-board device for representative sampling of particles in ambient air, in particular for studying atmospheric pollution
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机译:车载设备,用于代表性采样周围空气中的颗粒,特别是用于研究大气污染
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摘要
The invention relates to an on-board device for representative sampling of particles, comprising a sampling member, a continuous pumping means, and control means for starting or stopping the sampling or analysis of particles. In accordance with the invention, a solenoid valve 4 is provided upstream of the sampling member 1, and an anemometric member 5 makes it possible to compare the speed of the external air in the direction of displacement with the suction speed, and to open the solenoid valve 4 only when the isokinetic nature of the sampling process is ensured. Application in particular to studying atmospheric pollution, on board ground vehicles or aircraft, in particular for critical zones such as plumes of smoke from fuelled power stations. IMAGE
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