Hengstler Gmbh

Hochschule Niederrhein

Vienco Gmbh

Martin Linden

Johann Buecher

Wolfgang Klaiber

Uwe Grigo

Kai Klaeger

Thorsten Blust

The invention relates to a multi-turn angle measurement device for measuring multiple revolutions of a shaft (), consisting of a first code carrier () with an optical single-turn scanning function () for detecting the absolute position of the shaft and a second code carrier for measuring the number of revolutions of the shaft (). A reduction gear () is arranged between the first code carrier () and the second code carrier, and the second code carrier consists of a number of permanent magnets (), the position of which is detected by an assembly of Hall sensors (-) fixed to the housing. Each of the permanent magnets () is embedded into the plastic material of the transmission gears () of the reduction gear ().

Multi-turn angle measurement device

Method for digital, bidirectional data transmission between a position measuring system (-) and a motor control device () and/or an evaluation unit based on the transmission of frames () of a predefined bit length in chronologically sequential time slots (-), wherein a primary master () communicates via a two wire bus line () with the position measuring system (-) and/or the motor unit () and/or the evaluation unit with a primary slave () disposed there, and that additional sub-slaves () can be coupled in parallel to the primary slave (), which sub-slaves communicate on the same bus line (), which the primary master () uses with the primary slave ().

Data transmission method between a primary master and primary slave via a bus line and between sub-slaves via the same bus line

Method for operating a multi-channel rotary encoder comprising at least one printed circuit board on which one or a plurality of functional units () are arranged as integrated components and are interconnected, at least one position transducer () generating absolute and incremental measurement values which are each fed to a control unit () by means of at least one channel (), the control unit being disposed as a management and safety monitoring unit and controlling a downstream-connected machine, wherein the rotary encoder consists of at least three functional units (), that the position transducer () is arranged in a first functional unit () and generates absolute location-position values () in this functional unit (), which are fed by a second functional unit (), which is connected as an interface, as first secure data () by means of the first secure channel () to the control unit (), and that the position transducer () feeds its incremental measurement values to a third functional unit () which generates absolute location-position values () by calculation and feeds said values () through the second functional unit () by means of a second secure channel () as second secure data () to the control unit () (FIG.).

Multi-channel rotary encoder

Growing community of inventors

Donaueschingen, Germany

Martin Linden