The paper presents a flexible, low-cost microcontroller-based digital tachometer design with fast dynamic response and high accuracy.
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Algorithm performance confirmed experimentally; leaves open integration into cardiovascular monitoring devices.
The design of a very flexible, low-cost speed evaluation system is presented. The system provides fast dynamic response and high accuracy over a wide speed range. The design is suitable for a broad range of applications and can be integrated as part of an existing tachometer assembly. Hardware requirements and appropriate software structures for a microcontroller implementation are discussed. The algorithm used to calculate the speed is based on the method of constant elapsed time. The predicted performance is verified experimentally.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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R. Bonert (1989) studied this question.
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