In den Entwicklungen von Positioniersystemen stellt sich zunehmend die Frage, ob auf das 2-Antennen System verzichtet werden kann. Dazu muss man sich die Optionen genauer ansehen. Wobei hier gleich auffällt, dass bisherige Systeme wie RLG oder FOG-Kreisel in Bezug auf die Präzision der Nordrichtung nahezu konkurrenzlos sind. Der Nachteil liegt jedoch in den hohen Anschaffungskosten, wodurch sie eher für große Einheiten wie Schiffe oder Flugzeuge geeignet sind. Neuere Entwicklungen zeigen, dass sich die MEMS-Technologie diesem Bereich annähert. Produkte mit einem FOG-Kreisel integrieren einen MEMS-Beschleunigungssensor und liefern Werte für Pitch/Roll von 0.1° und ein «true» heading von etwa 1.0°. Der in diesen Systemen verwendete MEMS-Sensor liegt im Bereich von wenigen «mg», bei sehr niedriger angular rate des Gyro. Mit dem SCH16T hat Murata einen kleinen MEMS-Sensor mit 6 Freiheitsgraden (Gyro+Acc.) entwickelt, dessen Beschleunigungssensor eine so hohe Güte aufweist, dass damit erstmals über einen weiteren Weg zur Berechnung von Position und Orientierung diskutiert werden darf. Wir zeigen auf der Sensor + Test das neue Gehäuse, unser neues nanoMoveIT Evaluation Kit, sowie einen Gyro Kompass.
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