UG-015
TEMPERATURE TAB
The Temperature tab is used to examine the performance of the ADXL345 over temperature. By plotting the acceleration vs. temperature while the ADXL345 is not experiencing dynamic acceleration, the offset temperature coefficient can be determined by taking the slope of the
The Temperature tab, shown in Figure 15, allows a maximum number of points to be set and at what rate data is acquired. The testing can be stopped before reaching the maximum number of points. The data rate for the accelerometer can also be set to ensure that the testing is performed under conditions most like those that the part would be configured for in a system.
After selecting the values in the Sample Points, Time Interval [s], and Data Rate [Hz] boxes, data acquisition begins by clicking the Start Meas button. When testing is in progress, the Meas.
In Progress indicator lights up. To end the test before the maximum number of points, click the Stop Meas button.
Evaluation Board User Guide
Figure 15. Temperature Tab
The data in the top graph in Figure 15 is used for determining the offset temperature coefficient. The bottom graph displays the temperature over time. To save data, a measurement cannot be in progress. When the measurement ends or is stopped, click the Save Data button to save the data to a .txt file.
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