Abstract: In the absolute measurement of the position of an object (10) over a plurality of cyclical scannings performed on a material measure, a coding unit (18) is employed to record the cycles. The coding unit (18) is coupled to the measured object (10) by an effective mechanical link (22, 24). The effective link consists of a driving gearwheel (22) and a driven input wheel (24), which belongs to the coding unit (18). To minimize wear on the toothed connection, the connection is allowed a large degree of play and the driven input wheel (24) is run by a motor (26) synchronously with the drive gearwheel (22), as controlled by the scanner (12). The result is that the effective connection occurs within the area of play, without mechanical engagement of the toothings.

Abstract: An adjusting device has a carriage, at least one guide element, on which the carriage is mounted such that it can be moved, a shifting device for moving the carriage, and a securing mechanism for securing the carriage in a desired position. To provide an improved adjusting device, which has more compact construction and enables a simpler and more precise adjustment without additional contrivances, the shifting device has an electric motor, which is integrated in the carriage, and the securing mechanism blocks any movement of the carriage when the motor stands still and is automatically released when the motor starts running.

Abstract: A rotary encoder is clamped coaxially with its pickup shaft (14) on a drive shaft (12) which is to be measured. Two collet chucks are provided for this purpose. The one collet chuck is constructed as a clamping sleeve, which penetrates the pickup shaft (14) axially and has clamping jaws (34) on its free end. The other collet chuck is constructed as a clamping ring, which engages the pickup shaft (14) with clamping jaws (38). The two collet chucks are clamped axially against each other and against the pickup shaft (14) by a force element (40).

Abstract: A rotary encoder exhibits a shaft, which can be coupled in torque-proof fashion to a rotating object to be measured. The shaft is connected at a true angle of rotation to a material measure and is divided axially into a drive section (10), which can be coupled to the measured object, and an output section (12), which is connected to the material measure. The drive section (10) and the output section (12) are connected in torsionally rigid but axially resilient fashion by an intermediate element (26), which takes the form of a disk.

Abstract: An optical rotary angle sensor with at least one first measurement member able to move in the measuring direction having light-transparent and non-transparent regions located on it, at least one second measurement member arranged static relative to the first measurement member in the measuring direction, and/or at least one photoelectric transducer. To keep the distance between the rotating measurement member and the static measurement member and/or the optical-electrical transducer very small, i.e. in the range of about 10–20 ?m, and to make the centering of the two relative to each other independent of the formerly necessary shaft bearing, the measurement members are configured so that they are properly oriented relative to each other in the measuring direction and kept spaced apart by a guide provided between the measurement members. The guide can be a form-fitting connection in at least one of the directions not representing the measurement direction.

Abstract: A device for measuring the rotational angle of two components that can be rotated relative to each other has a shaft that can be securely coupled to the first component, and coaxially houses a light source and a materialized measure through which the light source shines. A sensing device can be securely coupled to the second component. The interior measure has an angular lattice structure and the sensing device has a coaxially arranged circular track of optical sensor elements, by means of which incremental angle measurement is possible. At least one marker element is also provided on the materialized measure that influences the sensor element corresponding to its absolute angle position. The sensor elements can be electronically polled individually in order to determine the absolute angle position.

Abstract: Measuring device for measuring the path and/or speed of a moving object in relation to a structural component, with a measuring wheel (20) and with a rotary encoder (10), such that the measuring wheel (20) is coupled to the encoder shaft (16) of the rotary encoder (10) at a precise angle of rotation, and the measuring wheel (20), along with the contact surface (22) formed by its jacket, can be positioned on the object in such a way that the axis of the measuring wheel (X direction) runs basically perpendicular to the direction of motion (Z direction) of the object, and the measuring wheel (20) and the rotary encoder (10) are elastically mounted on the structural component in a direction (Y direction) that is basically perpendicular to the axis of the measuring wheel (X direction) and to the direction of motion of the object (Z direction), wherein the measuring wheel (20) and the rotary encoder (10) are positioned on an elastic arm (32) that exhibits two legs (34, 36), the elastic arm (32) is secured to the st

Abstract: An optical rotary angle sensor with at least one first measurement member able to move in the measuring direction having light-transparent and non-transparent regions located on it, at least one second measurement member arranged static relative to the first measurement member in the measuring direction, and/or at least one photoelectric transducer. To keep the distance between the rotating measurement member and the static measurement member and/or the optical-electrical transducer very small, i.e. in the range of about 10-20 ?m, and to make the centering of the two relative to each other independent of the formerly necessary shaft bearing, the measurement members are configured so that they are properly oriented relative to each other in the measuring direction and kept spaced apart by a guide provided between the measurement members. The guide can be a form-fitting connection in at least one of the directions not representing the measurement direction.

Abstract: An adjusting device has a carriage, at least one guide element, on which the carriage is mounted such that it can be moved, a shifting device for moving the carriage, and a securing mechanism for securing the carriage in a desired position. To provide an improved adjusting device, which has more compact construction and enables a simpler and more precise adjustment without additional contrivances, the shifting device has an electric motor, which is integrated in the carriage, and the securing mechanism blocks any movement of the carriage when the motor stands still and is automatically released when the motor starts running.

Abstract: A device for measuring the rotational angle of two components that can be rotated relative to each other has a shaft that can be securely coupled to the first component, and coaxially houses a light source and a materialized measure through which the light source shines. A sensing device can be securely coupled to the second component. The interior measure has an angular lattice structure and the sensing device has a coaxially arranged circular track of optical sensor elements, by means of which incremental angle measurement is possible. At least one marker element is also provided on the materialized measure that influences the sensor element corresponding to its absolute angle position. The sensor elements can be electronically polled individually in order to determine the absolute angle position.

Abstract: An encoder operates in accordance with the transparent scanning principle. The encoder includes a rotating shaft, a partial disk connected nonrotatably concentrically with the shaft, an illuminating unit, and a scanning receiver located axially in front of the end of the shaft. The illuminating unit is connected nonrotatably centrally with the shaft and rotates with the shaft on the side of a partial disk that faces away from the scanning receiver. The scanning receiver includes a monolithic photoreceiver array which is formed with photosensitive sensor areas associated with an angular displacement of the partial disk.

Abstract: An electric motor, gearbox, position phase angle sensor and motor phase angle sensor are integrated in a common housing to reduce the size of a positioning and actuating system. The housing also includes electronics for detecting and processing the signals from the phase angle sensors. The rotor shaft of the electric motor is designed to be hollow, and the drive shaft is mounted coaxially. The output shaft passing coaxially through the gearbox, and the end of the shaft which protrudes from the gear box is provided with a coupling. The drive shaft passes coaxially through the rotor of the electric motor and carries a position phase angle sensor at the end of the electric motor opposite the gear box. The motor phase angle sensor on the rotor shaft coaxially encloses the position phase angle sensor. The scanning detectors of both sensors are arranged on a common circuit board, which also carries the electronics for detecting and processing the signals of these sensors.

Abstract: For regulating drives, process information is transmitted from a measuring device to a regulating device. In addition to position-measurement signals, acceleration-measurement signals are also transmitted. The acceleration-measurement signals are used as reference signals for position-measurement signals. As a result, no additional connecting leads are required for the additional transmission of acceleration-measurement signals.

Abstract: A drive system is described that uses an electric motor and a rotary angle measuring system. The measuring system shaft is supported in roller bearings in a stator which is supported relative to the electric motor in a nonrotatable fashion by means of a stator coupling. The measuring system shaft is rigidly mounted on the end of motor shaft. The rotary angle measuring system thus assumes support of motor shaft at the B end.

Abstract: In a gearing stage, a driving first wheel has a ferromagnetic profiled rib which is circumferential in one thread, whereas a second driven wheel has permanently magnetic profiled ribs which are disposed in a multi-start manner and which extend only over a fraction of the circumference and are opposite the ferromagnetic profiled rib with a small air gap. The driving wheel drives the driven wheel via a magnetic reluctance coupling.

Abstract: In order to control the rotation speed of an output shaft (2) driven by an electric motor (3) by means of a gear mechanism (1), the difference of the rotation speeds of the motor shaft (4) of the electric motor (3) and of the output shaft (2) is measured by means of an incremental torque meter (5, 6, 8, 9, 10) as an actual value and is used in a control circuit for controlling the electric motor (3) in order to level deviations of the rotation speed of the output shaft (2) from a specified desired value.

Abstract: In an angle-of-rotation measuring device, which can be attached to a motor, is a rotor shaft which can be coupled in a force-locked manner to the motor shaft. The stator can be coupled to a fixed motor casing by means of a diaphragm which is fixed in a shape-locked manner to the motor-side end face of the stator by means of its inner region. The diaphragm encloses the stator in a sheath-like manner and has, at its outer rim remote from the motor, a bead which is clamped between the casing and a lid which seals the casing at the end face remote from the motor.

Abstract: A device for measuring the angle of twist (20) is mounted to an electromotor (10). The housing (21) of the measuring device (20) is sealed from the housing (13) of the electromotor (10) by a sealing element (30). The sealing element is designed like a disk, is fixed by its outer circumference on the housing (21) and rests in a sealing manner by its inner circumference on the shaft (22) of the measuring device (20). The sealing element (30) can be at least partially deformed in a flexible manner so that it can yield to a pressure gradient between the motor housing (13) and the housing (21) of the measuring device.

Abstract: A system for measuring the angle of rotation in order to determine the absolute angular position of the shaft of an electromotor is described which consists of a device for measuring the angle of rotation (10) and a control unit (11) connected to one another via an electric interface. The electric interface comprises an analog process data channel (8) and a digital parameter channel (9). The control unit (11) controls a change-over switch (7) of the process data channel (8) via the digital parameter channel (9). As a result thereof, a sine-cosine signal pair with one period for revolution is supplied via the process data channel (8) to the control unit (11) in order to determine the absolute angular position for the starting of the motor. Then, a sine-cosine signal pair with a high number of periods per revolution is supplied via the process data channel (8) in order to incrementally count the angle of rotation.

Abstract: In an angle step indicator, a positive connection for adjustment is provided between the input shaft of the angle step indicator and the drive shaft whose angular position is to be measured. The positive connection is created by a shaft end with an adjustable diameter. Preferably, the shaft end is spreadable by means of a spreading pin to generate the positive connection, whereby the spreading pin is accessible from its rear even when the angle step indicator is installed. An elastic angularly fixed connecting element takes up alignment tolerances between the input shaft and the drive shaft.