Time Constant

A time constant is the amount of time it takes for a meteorological sensor to respond to a rapid change in a measurand until it is measuring values within the accuracy tolerance usually expected of the sensor.

This most often applies to measurements of temperature, dewpoint temperature, humidity and air pressure. Radiosondes are especially affected due to their rapid increase in altitude.

Famous quotes containing the words time and/or constant:

    When I came of age I did not know much. Still somehow, I could read, write, and cipher to the Rule of Three.... The little advance I now have upon this store of education, I have picked up from time to time under the pressure of necessity.
    Abraham Lincoln (1809–1865)

    Is constant love deemed there but want of wit?
    Sir Philip Sidney (1554–1586)