Hello John, A temperature probe measures only it's own temperature, keep this in mint if you are using a probe. What I mean is this if you make contact to a solid warmer object, you will have a small contact surface, and a large prope to heath. Depending on the temperature difference you will get a huge error. Because the probe radiates energy to the enviroment, this gives a gradient on the probe so your quartz cristal will never get the same temperature as the object. This error can be anything between 0,1 and 5 degrees Celcius depending on the object temperature and the enviroment temperature and makes all the digits behind the afther the "," useless To minimize the error you can increase te contact area, lower the thermal resistance between the probe and the object, isolate the probe, etc. For surface temperature measurement, I think your probe is not the best solution, a thermocouple could be a better solution. The best thing is to make an error budget and see what is the best solution for your problem.
Best regards, Henk PS maybe you can post a small photo or drawing of the object you want to measure On Sat, Jan 24, 2009 at 4:42 PM, John Ackermann N8UR <[email protected]> wrote: > The temperature probes for the 2804A quartz thermometer seem primarily > intended for liquid immersion. I'm looking for practical tips on how to > couple the probe to a solid surface (e.g., a PC board) for accurate > temperature measurements of the surface. > > Anyone know the best way to do this? > > Thanks, > > John > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- ---------------------------------------------------------------------------------------------------- "Je hoeft het niet met elkaar eens te zijn om naar elkaar te luisteren." Ook van Loesje ---------------------------------------------------------------------------------------------------- _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
