article · German
Ein elektronischer Koordinatenwandler ohne Diodennetzwerke und seine Anwendung bei der Messwertverarbeitung mechanischer Groessen
A 1977 doctoral dissertation submitted to the Technische Universitat Wien by Dipl.Ing. Fritz Vogel. The work describes a novel electronic coordinate converter that converts Cartesian coordinates to polar coordinates without diode networks, using an arctangent approximation based on the hyperbolic tangent function. The dissertation covers analog and digital implementation methods, circuit design, four-quadrant operation, computational accuracy analysis, and application examples including acceleration measurement and biaxial stress analysis.
coordinate conversionanalog computing circuitspolar coordinatesmeasurement systems