A fault detection and diagnosis method is presented, which based on analytical redundancy and statistics, for detecting and evaluating the temperature sensors with fixed bias in HVAC water systems.
针对HVAC水系统中温度传感器固定偏差的故障，提出了一种基于分析冗余和数理统计的故障诊断方法。
By controlling the detecting time, it is found that the light intensity is varied with the detection time, and also varied with the forward bias voltage in the same detection time.
控制光探测器的探测时间，发现不同探测时间下电池的发光强度不同，探测时间相同但偏压不同则光强也不同。
By controlling the detecting time, it is found that the light intensity is varied with the detection time, and also varied with the forward bias voltage in the same detection time.
控制光探测器的探测时间，发现不同探测时间下电池的发光强度不同，探测时间相同但偏压不同则光强也不同。
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