Continuing Studies of Airborne Thermometry

测量多云空气中的温度是 对大气科学家来说至关重要。 不幸的是， 云内空气温度不能正确测量，如果 用于测量温度的传感器变湿。 许多 已经开发了不同的外壳 屏蔽温度传感器免受水凝物的影响，同时允许 对周围空气进行适当采样。然而，到目前为止， 在各种条件下仍然允许一些传感器润湿。 的 这个问题的严重程度难以确定，然而， 因为没有标准存在， 可以测试。 最近，一种完全不同的仪器 其没有这种润湿问题， 开发 不幸的是，这种被称为 辐射温度计是昂贵的、大的和重的， 使得在近期内不太可能广泛用于研究飞机 未来 主要研究人员将使用这种辐射测量 温度计来研究大多数 常用的浸入式探头。 新知识将在 问题的严重性以及 发生润湿。 这将允许应用后校准 以前收集的数据，从而提高其质量。 的 从这项研究中获得的知识也将使校长 调查人员将继续为一个 重量轻且较便宜的浸入式传感器。

The measurement of temperature within cloudy air is of fundamental importance to atmospheric scientists. Unfortunately, in-cloud air temperature can not be properly measured if the sensor used to measure the temperature becomes wet. Many different housings have been developed for the purpose of shielding temperature sensors from hydrometeors while allowing adequate sampling of ambient air. To date, however, all housings still allow some sensor wetting under various conditions. The extent of this problem has been difficult to ascertain, however, because no standard existed against which immersion sensors could be tested. Recently, a fundamentally different instrument which does not suffer from this wetting problem has been developed. Unfortunately, this instrument, known as a radiometric thermometer, is expensive, large and heavy which makes widespread use in research aircraft unlikely in the near future. The Principal Investigators will use this radiometric thermometer to study the wetting characteristics of the most commonly used immersion probes. New knowledge will be gained on the magnitude of the problem and the conditions under which wetting occurs. This will allow post calibrations to be applied to previously collected data, thus improving its quality. The knowledge gained from this study also will allow the Principal Investigators to pursue developing an improved housing for a light weight and less expensive immersion sensor.