| 摘要 |
Air sampler with integrated airflow sensing. The air sampler according to at least some embodiments includes an air mover that is operable to move air ov er a sampling media. An integrated airflow sensor is in fluid communication with the air mover. The air mover operating speed can be adjusted, in example embodiments, by either a feedback control mechanism that is connected to the air mover and the integrated airflow sensor, by user input, or by a combination of the two. The feedback control mechanism adjusts the operating speed of the air mover in response to signaling from the integrated airflow sensor in order t o maintain an actual airflow in accordance with a stored, target value. The feedback can, in at least some embodiments, compensate for obstructions, environmental variables, variations in the power supplied to the air mover, and the like.
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