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Air flow manifold system for providing two different mass air flow rates to a mass air flow sensor production calibration station
Air flow manifold system for providing two different mass air flow rates to a mass air flow sensor production calibration station
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机译：空气歧管系统，用于向质量空气流量传感器生产校准站提供两种不同的质量空气流量
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摘要
An air flow manifold system for a production line calibration station. The air flow manifold system has a connector manifold connected to the production line calibration station, a vacuum source, a first manifold and a second manifold. The first and second manifolds connect the connector manifold to a vacuum source. The first and second manifolds each have a shut-off valve and a sonic nozzle controlling the mass air flow therethrough. The mass air flow through the first and second sonic nozzles are selected to have an optimal value for the calibrations to be conducted by the calibration station. An electrical controller sequentially activates the first and second valves sequentially supplying the specified mass air flow rates through the calibration station. Pressure and temperature sensors disposed upstream of the sonic nozzles permit an accurate determination of the mass air flow rates through the sonic nozzles.
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