Arecorder – EN – Arkadiusz Paliński

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Arecorder v 2.2

Arecorder is a device designed to record data during flight of rocket and trigger fuses in specified moments. Device is suited for medium and big model rockets, also two-stage and/or supersonic. Employed algorithms allow to detect abnormal situations (e.g. rocket flying at low inclination) and react to them properly reducing risk of rocket destruction.

Features:

pressure measuring in range 0 – 110 kPa (in range 50 – 110 kPa with 100 Pa
accuracy),
acceleration measurement – three axis +- 24 g, one axis (along rocket axis) +- 80 g,
temperature measurement inside rocket in range -50 to +130 °C (-58 to 266 °F),
data recording into microSD card,
frequency of data sampling 100 Sa/s,
Kalman filter implemented to reduce noise in pressure data,
detection and signalling of connected fuses,
firing up to three fuses – two parachutes and one for second stage engine ignition,
firing main parachute when altitude parachute failure is detected,
detecting and recording inclination of rocket at launchpad,
measuring of Arecorder’s power supply,
programmable delay between burnout of first stage engine and firing second stage engine,
selection of one of four sets of Arecorder configuration parameters,
Arecorder’s configuration parameters and owners first name, last name and phone number programming by software installed on a PC computer,
writing summary of several most important flight parameters into separate file.