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EN
This paper presents a three-step calibration method for improving the accuracy of the standard crystal oscillator, which is running the embedded RTC (real time clock) module in a standalone not networked sensor device. The first is the analysis and verification of the hardware design. The second step includes implementation of the static calibration procedure where special attention is given to the power use. In the last step the dynamic calibration procedure is implemented, based on the random synchronization events. The developed method should offer a mix of good stability and power efficiency, small footprint and competitive price.
PL
Zaprezentowano metodę kalibracji i poprawy dokładności generatora wykorzystywanego we wbudowanym module zegara RTC (real time clock).
2
EN
Needs and possibilities of the reduction of machining automation errors on the basis of the measurements of a workpiece which undergoes a multi-sided machining is presented in the paper. The article briefly shows various sources of machining errors and their reduction methods. The difficulties occurring when taking into account the CMM measurements results in the workshop environment are characterized. The examples of how the presented approach can be applied in practice is displayed.
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