Humidity measurements can be tricky, and even small misunderstandings can lead to wrong conclusions. Here are five common mistakes to watch out for:
- Mixing up absolute and relative humidity. Remember, absolute is the actual moisture amount; relative is a percentage based on temperature.
- Ignoring temperature’s effect on RH. RH changes with temperature, so always check both.
- Assuming RH is constant throughout the day. It fluctuates, often rising at night.
- Misreading dew point as RH. Dew point is a temperature, not a percentage.
- Poor sensor placement. Avoid placing hygrometers near heat sources or direct sunlight.
By avoiding these mistakes, you’ll get a clearer picture of moisture levels, which is especially important for protecting your astronomy equipment.
