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http://dx.doi.org/10.5139/JKSAS.2022.50.4.269

Elapsed-time Method With Tacho Pulse Non-uniformity Correction  

Son, Jun-Won (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.50, no.4, 2022 , pp. 269-275 More about this Journal
Abstract
In ideal configuration, elapsed-time method can measure the exact reaction wheel speed. But in real configuration, the speed measurement error exists due to tacho pulse non-uniformity. In this research, we study the method which overcome the non-uniformity effects. First, we introduce the method which spin the wheel at the specific speed and measure the non-uniformity. Then, we propose the real-time measurement error correction method which uses the obtained non-uniformity information. This method calculate the speed candidates from the elapsed-time method's counts and non-uniformity information, and choose the closest speed to the real speed. Through simulation, we show that proposed method measure the exact speed regardless of non-uniformity, and fast wheel speed control is possible.
Keywords
Reaction Wheel Speed Measurement; Elapsed-time Method; Tacho Pulse Non-uniformity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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