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OwnerReiner Breer, André Hessling +3inventors
InventorsReiner Breer, André Hessling, Axel Nobbe, Carsten Schumann, Peter Velling
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The invention relates to a method for capturing an absolute rotational position of a shaft using at least two rotational material measures which are synchronously coupled to the shaft, comprising material measures with a different number of graduations which are each relatively prime in pairs, a determination of the state of the individual material measures by means of sensors, wherein a quantizable number of rotational states Ni is captured for each material measure, the total measurement range of the capture system is determined by the product N=πi=1 Ni of the possible states of all material measure, and each combination of states (a0, a1, a2, . . . , an) occurs exactly once within the total measurement range N, with the result that the absolute position of the shaft can be determined at any time from the combination of states of the material measures. In order to obtain a high resolution and a wide measurement range, provision is made for some of the material measures to have a multiple of the required graduation for determining the states and/or for at least individual material measures to be used in a cascaded and state-synchronous manner.
Method for capturing an absolute rotational position of a shaft (30, 33) using at least two rotational material measures (10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 31, 34) which are synchronously coupled to the shaft (30, 33) comprising material measures (10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 31, 34) with a different number of graduations which are each relatively prime in pairs (relativ prim), a determination of the state of the individual material measures (10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 31, 34) by sensors (25), wherein a quantizable number of rotational states Ni is captured for each material measure (10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 31, 34), the total measurement range of the capture system is determined by the product N=πi=1 Ni of the possible states of all material measures (10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 31, 34), and each combination of states (a0, a1, a2, . . . , an) occurs exactly once in the total measurement range N, with the result that the absolute position of the shaft (30, 33) can be determined at any time from the combination of states of the material measures (10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 31, 34),
Device for capturing a rotational position of a shaft (30, 33) independent of it being switched on, comprising at least one housing (2) with a manually rotatable hollow shaft (6) whose absolute rotational position is to be determined, wherein the rotational position of the hollow shaft (6) can be transmitted to a production plant to be controlled via controlling elements, and wherein a direct coupling of the hollow shaft (6) to at least two material measures (10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 31, 34) is accomplished which have a different number of graduations which are each relatively prime in pairs (relativ prim) and can be sensed by a sensor (25),
Device for capturing a rotational position of a shaft (30, 33) independent of it being switched on whose absolute rotational position, or the position of a sensory mechanism (42) with respect to a toothed rack (40), is to be determined, wherein a coupling of the shaft (30, 33) or the toothed rack (40), respectively, to at least two sensor gear wheels (37, 38, 39, 40, 43, 44, 45, 46) of a sensory mechanism (32, 35, 42) which have a different number of graduations which are each relatively prime in pairs (relativ prim) is accomplished,
Dependencies are inferred from the claim text.