Thermal mass and the TI HDC1000EVM

Thermal mass:

The thermal mass of the TI HDC1000EVM is very low which is excellent for instantaneous temperature or fine resolution

temperature sensing.  However you may want a more moderated response.  In graphing my sensors over time the TI HDC1000EVM

was wildly erratic but it is mounted outside and the low thermal mass means the sensor reacts to the momentary temperature.  If a

breeze blows it will change the temperature to reflect the instantaneous temperature and not the average temperature.

Since I wanted a nice smoothed graph of outside temperature I added thermal mass by putting some modeling clay around the sensor.

What ever you use it has to be non-conductive of course.  Now I get a nice smooth graph of outside temperatures.

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Doug Wyman

The first computer I used was an 1962 IBM 1401 and the project was statistical information at JSPC Okinawa (NSA). Then as a civilian I engaged in Telecommunications and Video consulting thru 1974. I was asked to join the WSP Electronic Services Telecommunications and Computer engineering section and stayed till 2000. Then I was asket to work on the WSDOT CVISN project and did till till 2005 then back into retirement. Then WSCTC asked me to act as a consultant to CVISN and I did till 2011. I retired for the third time am learning Debian, Python, PHP and others for the first time. Superannuated but still learning

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