Abstract: The invention relates to a rotary encoder comprising internal error control with a monitoring unit comprising at least a computing module, a verification means, a memory unit and an alarm unit. The invention also relates to a method for checking a rotary encoder when said encoder is in operation, the rotary encoder generating at least one measuring signal pair representative of the amount of rotation. In order to be able to determine the functioning of the rotary encoder, even when said rotary encoder is stationary, it is provided according to the present invention that a characteristic value should be created in the monitoring unit from current amplitude values of the measuring signal pair, said characteristic value being used in a comparison with at least one quality value representative of the functional states of the rotary encoder.

Abstract: A rotary transducer has a detector device with a measurement sensor, used to generate a measurement signal representative of angular position and/or velocity of an object. The detector device has a rotary bearing and a material measure that can be rotated relative to the measurement sensor and is arranged in the measurement field of the latter. A monitoring device, connected to the measurement sensor, which can provide a state signal representative of the state of wear of the rotary transducer, is integrated in the rotary transducer. In order to be able to timely warn of mechanical failure of the rotary transducer, the monitoring device is provided with a register that can permanently store as value representative of the state of wear of the rotary bearing and is formed from the information relating to the angular position and/or velocity contained in the measurement signal.

Abstract: A rotary encoder device for scanning a rotatable shaft includes a microgenerator circuit, which converts the kinetic energy of the shaft into an electrical voltage, and a monitoring circuit, which is designed to output an error signal that indicates a malfunction of the microgenerator circuit. The error signal is issued when the electrical voltage meets a predetermined criterion with respect to a reference threshold.

Abstract: The invention relates to a rotary encoder comprising internal error control with a monitoring unit comprising at least a computing module, a verification means, a memory unit and an alarm unit. The invention also relates to a method for checking a rotary encoder when said encoder is in operation, the rotary encoder generating at least one measuring signal pair representative of the amount of rotation. In order to be able to determine the functioning of the rotary encoder, even when said rotary encoder is stationary, it is provided according to the present invention that a characteristic value should be created in the monitoring unit from current amplitude values of the measuring signal pair, said characteristic value being used in a comparison with at least one quality value representative of the functional states of the rotary encoder.

Abstract: The invention relates to a rotary transducer (1) and to a method for monitoring wear on the latter. The rotary transducer has a detector device (11) having at least one measurement sensor (12). During operation, the measurement sensor can be used to generate a measurement signal (13) which is representative of the angular position and/or velocity of an object which can be connected to the rotary transducer. The detector device (11) has at least one rotary bearing (15) and at least one material measure (16) which can be rotated, by means of the rotary bearing, relative to the measurement sensor and is arranged in the measurement field (17) of the latter. A monitoring device (20) which is connected to the measurement sensor such that data are transmitted and can be used, during operation, to output a state signal (23), which is representative of the state of wear of the rotary transducer, on the basis of the measurement signal is also integrated in the rotary transducer (1).