Abstract:Keeping pressure gradient is an excellent approach to prevent the reveal of airflow direction and cross infection in manufacturing circumstances of pharmaceutical cleanrooms, thus how to keep cleanroom's pressure is critical. In the paper, we study a positive pressure pharmaceutical cleanroom system which is composed by a cleanroom and an airlock. We divide the system's disturbances into step disturbance, ramp disturbance and sine wave disturbance. We design its pressure gradient control strategies, including … Show more
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