До питання оцінювання похибки дискретизації і верхньої межі вимірювання кутової швидкості в мікропроцесорних тахометрах

Abstract

The equation of sampling error was obtained for the first time, was proved that the upper limit of the angular velocity measurements limiting factor is not only the normalized value of the quantization error, as previously thought, but also the value of the fД sampling frequency. Therefore, to expand the measurement range (by increasing the upper measurement limit), it is proposed both, to increase the performance of analog-to-digital conversion hardware, and to reduce the execution time of software drivers for transmitting measuring information to the RAM of the microprocessor system. Therefore, analytical dependencies for evaluating the upper measurement limit are obtained, based on the value of the sampling step for different modes of transmitting measuring information.