Location History:
- Erlangen-Buchenbach, DE (1977)
- Erlangen-Buechenbach, DE (1984)
- Erlangen, DE (2000)
Company Filing History:
Years Active: 1977-2000
Title: The Innovations of Wilhelm Linden
Introduction
Wilhelm Linden is a notable inventor based in Erlangen, Germany. He has made significant contributions to the field of technology, particularly in the development of advanced systems for rotational speed determination. With a total of three patents to his name, Linden's work exemplifies innovation and technical expertise.
Latest Patents
One of Wilhelm Linden's latest patents is an inverter system that includes a method and apparatus for determining rotational speed. This invention provides an improved method for determining the rotational speed of a rotating shaft. The system utilizes two probes positioned adjacent to a circular disk that rotates with the shaft. These probes scan markings on the disk and generate four out-of-phase signals in response to the rotation. A switch, controlled by logic circuitry that detects intersections of the signals, develops a composite saw-tooth-shaped signal from the four signals. A counter counts the number of crossings of the composite signal with a reference 'zero' value, allowing for the determination of the number of discrete angular positions traversed by the shaft during a specified time interval. Additionally, computation circuitry develops a rotational speed based on the counted number of positions, corrected by a factor derived from the difference between the stored value and the value of the composite signal at the end of the interval. Time control circuitry ensures that the start or end of the time interval does not occur during switching, preventing any errors in measurement.
Career Highlights
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