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Thermal response

Associate III

One of the critical measurements for the analysis of bridges is the thermal response. The 201/109 combination has an average thermal response in the FFT of 1.5 milli-g - it is slightly frequency dependent, but ignoring that the standard deviation means that below 3.5 milli-g is just Gaussian data. Anything over 3.5 is structural response, statistically speaking. The 3.5 milli-g is higher than other accelerometers we use, do you have some device with a tighter response to thermal?

Federica Bossi
ST Employee

Ciao @Macneacail​,

For your application, I suggest you to look at IIS2ICLX and let me know if you need more information.

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Associate III

It is 2 axis only, of no use in bridges, but we are testing the 201/109 in 12 locations, so we will know a lot more in 12 months.