Abstract: A device for measuring a change in length has a first fastening element, a second fastening element and at least one length element which is arranged between the two fastening elements. The one length element has a first end a second end and a length along a longitudinal direction. A force acting parallel to the longitudinal direction leads to a change in length of the length element. A lever element has a first end, a second end, and a fulcrum and is arranged transversely to the longitudinal direction.

Abstract: A device for determines the torque and/or the rotary angle between a first shaft and a second shaft, which are coupled via a gear mechanism to rotate relative to one another about an axis of rotation. The first shaft has a first end region, a second end region, and a first direction vector pointing in parallel with the axis of rotation from the first end region to the second end region, and the second shaft has a first end region, a second end region, and a second direction vector pointing in parallel with the axis of rotation from the first end region to the second end region. The first shaft is designed as a hollow shaft and the second shaft is arranged coaxially in the first shaft in such a way that the first direction vector and the second direction vector have the same orientation.

Abstract: In a method for determining the elongation of segments of a chain of a chain drive during operation, a plurality of measured values is determined at different positions of the chain. A plurality of length values is determined from the plurality of measured values and a position of the segments of the chain is determined. The length values are assigned to the segments of the chain, with the length of the segments of the chain being smaller than the length of the chain.

Abstract: In a method for determining the elongation of segments of a chain of a chain drive during operation, a plurality of measured values is determined at different positions of the chain. A plurality of length values is determined from the plurality of measured values and the length values are assigned to the segments of the chain, with the length of the segments of the chain being smaller than the length of the chain.

Abstract: The invention relates to a chain elongation monitoring device having a first differential transformer, a second differential transformer, and a control for recording the measured values, wherein the second differential transformer is arranged at a fixed distance from the first differential transformer, and a method for operating the chain elongation monitoring device.

Abstract: The invention relates to a method of determining the elongation of segments of a chain during operation, comprising the following steps: Performing a first detection to determine a position of a first chain component and detecting a first measurement value, performing a second detection to determine a position of a second chain component and detecting a second measurement value, and determining the distance L between the first and the second chain component, wherein the first detection and the second detection are performed simultaneously.

Abstract: A chain sensor includes a first magnetic circuit, a device for measuring the magnetic flux density in the first magnetic circuit, and a coil. The magnetic circuit is substantially formed by a magnetically conductive yoke body. The yoke body has a lateral leg, the end of which is disposable in the proximity of a chain. The device for measuring the magnetic flux density is connected to an analysis unit. To determine the elongation of the chain during operation, a partially closed magnetic circuit is formed, a voltage is applied to a coil disposed in the magnetic circuit, an alternating magnetic flux density is generated in the magnetic circuit by the movement of the chain through the partially closed magnetic circuit, the alternating magnetic flux density in the magnetic circuit is detected as a plurality of measured values, and a length value of the chain from the measured values is determined.

Abstract: A chain sensor includes a first magnetic circuit, a device for measuring the magnetic flux density in the first magnetic circuit, and a coil. The magnetic circuit is substantially formed by a magnetically conductive yoke body. The yoke body has a lateral leg, the end of which is disposable in the proximity of a chain. The device for measuring the magnetic flux density is connected to an analysis unit. To determine the elongation of the chain during operation, a partially closed magnetic circuit is formed, a voltage is applied to a coil disposed in the magnetic circuit, an alternating magnetic flux density is generated in the magnetic circuit by the movement of the chain through the partially closed magnetic circuit, the alternating magnetic flux density in the magnetic circuit is detected as a plurality of measured values, and a length value of the chain from the measured values is determined.

Abstract: In a method for determining the elongation of segments of a chain of a chain drive during operation, a plurality of measured values is determined at different positions of the chain. A plurality of length values is determined from the plurality of measured values and a position of the segments of the chain is determined. The length values are assigned to the segments of the chain, with the length of the segments of the chain being smaller than the length of the chain.

Abstract: In a method for determining the elongation of segments of a chain of a chain drive during operation, a plurality of measured values is determined at different positions of the chain. A plurality of length values is determined from the plurality of measured values and the length values are assigned to the segments of the chain, with the length of the segments of the chain being smaller than the length of the chain.

Abstract: A chain sensor comprising at least one coil and a device for measuring the chain elongation comprising two chain sensors and a control unit, are provided. In addition, a method of measuring the chain elongation of a chain with two chain sensors arranged along the chain in spaced relationship with one another is provided. The chain sensor comprises at least one first reluctance sensor. The first reluctance sensor has a magnetically conductive yoke body comprising a central leg and two yoke legs extending laterally thereto. The yoke legs are each provided with at least two teeth, the teeth of the yoke legs being adapted to be arranged in closely spaced relationship with a chain. The first reluctance sensor includes at least one permanent magnet.

Abstract: A chain sensor comprising at least one coil and a device for measuring the chain elongation comprising two chain sensors and a control unit, are provided. In addition, a method of measuring the chain elongation of a chain with two chain sensors arranged along the chain in spaced relationship with one another is provided. The chain sensor comprises at least one first reluctance sensor. The first reluctance sensor has a magnetically conductive yoke body comprising a central leg and two yoke legs extending laterally thereto. The yoke legs are each provided with at least two teeth, the teeth of the yoke legs being adapted to be arranged in closely spaced relationship with a chain. The first reluctance sensor includes at least one permanent magnet.

Abstract: In a measuring device, the measured data of a data recording component (10) are transmitted to an evaluating component via an output device (12). Parameters of the measuring device are stored in a memory (18). For the purpose of parameterization, parameters from the evaluating component can be stored in the memory (18) over a data cable for transmitting the measured data. To this end, the output device (12) for this data cable (Z) is operated at high impedance.

Abstract: A length measurement apparatus (10) has a bistable magnetic element (102), an elongated physical scale (200) with a plurality of measurement graduation elements (202) spaced apart from one another and a reading head (100) movable relative to the physical scale (200) in its longitudinal extent and which includes a first and second reading head magnet (114a b) arranged transverse to the longitudinal extent and with opposite polarity to one another. The measurement graduation elements (202) each have a magnetic short-circuit element (202) to suppress the magnetic field (116a) of the first reading head magnet (114a) in a first relative position of the reading head (100) and the magnetic field (116b) of the second reading head magnet (114b) in a second relative position of the reading head (100).

Abstract: A feedback system for controlling a servo motor comprising at least one rotary angle sensor and at least one rotary speed sensor, wherein the rotary angle sensor supplies a measured rotary angle value to a computer, wherein the rotary speed sensor supplies a measured rotary speed value to the computer, the actual rotary speed values are the measured rotary angle values interpolated according to the integrated measured rotary speed values, and wherein at high rotary speeds, the actual rotary speed values are the calibrated measured rotary angle values, differentiated with respect to time, and at low rotary speeds, the actual rotary speed values are the measured rotary speed values.

Abstract: The invention relates to a roller bearing (01), with a revolving bearing component (05) and a stationary bearing component (04), and with a capacitive sensor unit (02). The capacitive sensor unit (04) comprises a pivoted sensor element (08), which is connected to the revolving bearing component (05), and a stationary sensor element (09). The sensor units (08, 09) form a capacitor. At least one of the sensor elements (08, 09) bears a first material measure (14, 16), so that a change arises in the capacitance of the capacitor when there is a relative motion in the sensor areas (08, 09). The sensor unit also includes a means for generating a periodic electrostatic field between the sensor plates, and a processing and amplifying electronics unit for evaluating the change in capacitance.

Abstract: A measurement apparatus (10) for the absolute value determination of lengths or of angles, said apparatus having at least one reading head (14) and a physical scale (12) is provided, which has at least a partial section (18) with a connection (28) for another partial section (18) in a sequential arrangement. In this respect the partial section (18) includes a control unit (30) for the active determination of the position of the reading head (14) proximal to the partial section (18) as well as a storage element (32) in which an own position information of the partial section (18) within the physical scale (12) can be stored.

Abstract: Disclosed is a position measuring device, comprising: a first and second solid measure and a first and second scanning mechanism, wherein: the first and second solid measure and the first and second scanning mechanism are respectively designed identically but mirrored in a plane including the direction of measurement and perpendicular to the direction that is not measured; the first and second solid measure are mounted in a fixed opposite position in a direction that is not measured; the first and the second scanning mechanism are mounted in a fixed opposite position in the direction that is not measured; and the scanning signals generated by the first and second scanning mechanisms respectively are electronically combined into an output scanning signal.

Abstract: The invention relates to a sensor for the determination of the rotational speed of a shaft.

Abstract: An encoder for detecting measured values dependent on the rotation angle of the shaft of a motor includes a rotor, which can be fixed on the shaft, and a stator housing, which can be fixed by a bearing surface on an attachment surface of the motor and has a scanning means for detecting the relative rotational position of rotor and stator. In the mounted state, the rotor is fixed on the shaft and the housing is fixed on the attachment surface in such a way that the rotor and the scanning means have a defined axial distance (h). Additionally for mounting purposes, the encoder is pushed onto the shaft until the housing is held in a mounting auxiliary position with its bearing surface at an axial distance from the attachment surface, the axial distance corresponding to the defined distance (h).