Hi all -- I want to get detailed correlation data on ambient temperature and vehicle tire pressure under different conditions (including nitrogen-filled tires). It occurred to me that temperature at the moment of tire pressure measurement might not be the best predictor. If the temperature has changed over time leading up to that point, then maybe where it was 30 minutes ago is more relevant to tire pressure than where it is right now.

Does anyone know what the lag is expected to be for effects on gas pressure in this context? How would you construct a temperature variable if you wanted to account for change? The simplest would be to average T1 and T2 or something, playing with the time interval, or plug in a lot more points.

By the way, I assumed that temperature sensors are real-time, or instantaneous in their readings, with no lag behind changes. But is this true? Is there more than a couple of seconds of lag in reflecting the true ambient temperature? I assume that temperature changes don't have to "travel" through any significant material insulating a sensor.

Thanks.