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Electronic Refinements for Improved Operation of Portable Industrial Hygiene Air Sampling Systems,

机译:用于改进便携式工业卫生空气采样系统操作的电子改进,

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摘要

Two electronic circuit developments are described for use in portable air sampling systems for industrial hygiene monitoring. The first development described is a motor speed controller,applicable to air moving systems involving a positive displacement pump. The second development involves the utilization of rapid charge batteries in the design of power packs for portable instruments.

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