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Development of a Charged Grid Sensor for Airborne Carbon Fibers

机译：空气中碳纤维带电网格传感器的研制

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This development addressed the sensing and measurement of carbon fibers moving in ventilating ducts or the exhaust stacks of incinerators. The sensor system utilizes a series of 5 electrically charged grids with different grid spacings to sense the fibers, make determinations of their length, and present a count of the numbers detected. The system will sense carbon fibers shorter than 0.1 mm moving at velocities from 2 to 4 meters per second. In addition, the system will measure fiber populations up to 100 fibers/cu meter in each of 5 lengths ranging from 0.1 to 1.5 mm. The areas which require further development have been identified together with a list of design requirements and alternate materials or fabrication techniques applicable to producing a unit for evaluation in a field test. A companion development produced a mobile flow test facility for evaluating and calibrating instrumentation which measures fibrous aerosols.

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