Abstract: A self-centering hub, more particularly for timing discs of encoders, stepping motors, spinning roller drives and the like, comprising a hub plate for fixing timing discs or code carriers and a slotted hub shank for being slipped on to the shaft end of an input or output unit.

Abstract: An optical transducer device including an optical transducer element having preliminary and fine-adjustment openings, a printed circuit board, a motor shaft, a hub mounted to the motor shaft, and a sensor/emitter element that forms a sensor gap. The optical transducer element is positioned by, pre-positioning the shaft in the preliminary opening of the optical transducer element such that the peripheral edge is located outside the sensor gap, and laterally sliding the optical transducer element so that the motor shaft is positioned in the fine-adjustment opening of the optical transducer element such that the peripheral edge at least partially reaches into the sensor gap. The optical transducer element is then pressed onto the hub. Prior to positioning the optical transducer device, the circuit board is soldered to the device components, thereby protecting the optical transducer element from the negative effect of heat and solder residue.

Abstract: An encoder unit releasably secured to the flange end of a motor with a form-fitting and positive connection comprises an encoder housing with guide grooves for receiving a printed circuit board (PCB), a recess for receiving the motor shaft, and at least one moveable side wall. A timing disc and hub are positioned on the motor shaft within the encoder housing beneath the PCB. The PCB, a sensor unit fixed, and the movable side wall are slid into the guiding grooves to press an abutment against the hub. The pre-assembled encoder housing can be placed onto a base plate at the flange end of the motor. Pressure movement fully insert the PCB into the housing cover so that the sensor unit records the code markings of the timing disc and so that an abutment is removed from a region of contact with the timing disc hub.

Abstract: An optical transducer device including an optical transducer element having preliminary and fine-adjustment openings, a printed circuit board, a motor shaft, a hub mounted to the motor shaft, and a sensor/emitter element that forms a sensor gap. The optical transducer element is positioned by, pre-positioning the shaft in the preliminary opening of the optical transducer element such that the peripheral edge is located outside the sensor gap, and laterally sliding the optical transducer element so that the motor shaft is positioned in the fine-adjustment opening of the optical transducer element such that the peripheral edge at least partially reaches into the sensor gap. The optical transducer element is then pressed onto the hub. Prior to positioning the optical transducer device, the circuit board is soldered to the device components, thereby protecting the optical transducer element from the negative effect of heat and solder residue.

Abstract: A motor-sensor system of an electric motor with a shaft end on an encoder side, a mounting device for the motor, terminals for supplying power to the motor and a printed circuit board with electronic components for controlling and regulating an encoder unit. Contact pins are provided for supplying power to the motor and for forming contact guides with correspondingly formed bore holes disposed in the motor are positioned on a solid printed circuit board. An angular mounting clamp encompasses the electric motor on the shaft end of the encoder side. The clamp ends are formed as pegs which secure the end face and at least one longitudinal side of the motor on the printed circuit board. The angular mounting clamp has in the plane of the end face of the motor a contact surface for the shaft end of the encoder side of the electric motor.

Abstract: The invention relates to a timing disc fitting for an encoder system. It consists of a timing disc hub (1) which can be plugged to a motor shaft (2) and to which there is fixed a timing disc (3). In accordance with the invention, the timing disc hub consists of a metallic heat-conducting material to which, on one side, a plastic insulating material is adhered. In the flange plane (1a) of the timing disc hub (1) there are arranged projections or lugs (5, 6, 7) which engage correspondingly shaped indentations, recesses or cut-outs (3a, 3b) in the timing disc (3).

Abstract: An encoder arrangement is described, consisting of a motor with a motor shaft, on which a timing disk is secured, a signal source for producing an optical signal as well as a beam mask for shaping the optical signal. The arrangement is characterized in that the beam mask is provided with code bars having pit and land structures that have a diffraction and interference structure.

Abstract: An encoder unit releasably secured to the flange end of a motor with a form-fitting and positive connection comprises an encoder housing with guide grooves for receiving a printed circuit board (PCB), a recess for receiving the motor shaft, and at least one moveable side wall. A timing disc and hub are positioned on the motor shaft within the encoder housing beneath the PCB. The PCB, a sensor unit fixed, and the movable side wall are slid into the guiding grooves to press an abutment against the hub. The pre-assembled encoder housing can be placed onto a base plate at the flange end of the motor. Pressure movement fully insert the PCB into the housing cover so that the sensor unit records the code markings of the timing disc and so that an abutment is removed from a region of contact with the timing disc hub.

Abstract: An encoder system with a timing disc includes a preassembled circuit board with a U-shaped sensor/emitter embracing the edge of the timing disc. The timing disc is configured to be slipped onto a motor shaft at the flange end of an electric motor, and the circuit board is designed to be mounted on the flange of the motor by mechanical, thermal, and/or adhesive means of attachment. The motor flange is equipped with a centering collar that has a flattened portion on its otherwise circular circumference. The circuit board has a cutout opening that receives the centering collar in a form-fitting way when the circuit board is slid onto the flange of the motor. By rotating the circuit board 90° about the centering collar, the circuit board is secured in a defined position on the motor flange.

Abstract: A motor-sensor system of an electric motor with a shaft end on an encoder side, a mounting device for the motor, terminals for supplying power to the motor and a printed circuit board with electronic components for controlling and regulating an encoder unit. Contact pins are provided for supplying power to the motor and for forming contact guides with correspondingly formed bore holes disposed in the motor are positioned on a solid printed circuit board. An angular mounting clamp encompasses the electric motor on the shaft end of the encoder side. The clamp ends are formed as pegs which secure the end face and at least one longitudinal side of the motor on the printed circuit board. The angular mounting clamp has in the plane of the end face of the motor a contact surface for the shaft end of the encoder side of the electric motor.

Abstract: An encoder system with a timing disc includes a preassembled circuit board with a U-shaped sensor/emitter embracing the edge of the timing disc. The timing disc is configured to be slipped onto a motor shaft at the flange end of an electric motor, and the circuit board is designed to be mounted on the flange of the motor by mechanical, thermal, and/or adhesive means of attachment. The motor flange is equipped with a centering collar that has a flattened portion on its otherwise circular circumference. The circuit board has a cutout opening that receives the centering collar in a form-fitting way when the circuit board is slid onto the flange of the motor. By rotating the circuit board 90° about the centering collar, the circuit board is secured in a defined position on the motor flange.

Abstract: An encoder arrangement is described, consisting of a motor with a motor shaft, on which a timing disk is secured, a signal source for producing an optical signal as well as a beam mask for shaping the optical signal. The arrangement is characterized in that the beam mask is provided with code bars having pit and land structures that have a diffraction and interference structure.

Abstract: An optical transducer element in the form of a circular pulse raster disk or a pulse raster ruler mounted on a drive shaft, a tool carriage, a sliding stage, or a linearly movable position transducer has a peripheral edge running through a sensor gap of a transducer device for detecting at least one of a movement and a position. The optical transducer element is installed, centered and adjusted by: pre-positioning the optical transducer element in a preliminary position where the peripheral edge is located outside the sensor gap, and laterally sliding the optical transducer element into a centered fine-adjustment position where the peripheral edge reaches into said sensor gap.

Abstract: A gear-reduction device for measuring and transmitting the movements of a rotary object has a sequential arrangement of wheel/pinion pairs. Each wheel/pinion pair consists of a gear wheel and a pinion that are rigidly connected to a common gear axle. At least part of the gear wheels lie in different parallel planes that are inclined at an oblique angle in relation to the plane of rotation of the rotary object. The gear wheels are of equal diameter, and each of the pinions drives the next following gear wheel. The first wheel in the sequence of wheel/pinion pairs is driven by the rotary object, while the last of the pinions drives a swivel-mounted optical angle-measuring device.

Abstract: A Signal generation and correction circuit with an LED diode (D1) and a photo-transistor (Q1) having corresponding inputs and outputs (d1e, d1a and q1e, q1a), as well as connecting lines (1, 2) leading to current terminals (A, B). The inputs and outputs (d1e, d1a) and/or (q1e, q1a) of the diode (D1) and the photo cell (Q1) arc connected so as to form a parallel circuit, wherein a resistor (R2) is arranged in the photo-transistor line (3) between the output (q1a) and the node (K) with the connecting line (2) and wherein a resistor (R1) is arranged in the line (2) between the node (K) and the current terminal (B). A transistor (Q2) is connected with its base (q2b) to the output (q1a) or the photo-transistor line (3), whereas the collector terminal (q2c) is connected via a resistor (R3) to the connecting line (1). The collector current has a value of 0 when a photo current flows in the photo transistor (Q1).

Abstract: In modifying the surface structure in the form of pit and land structures, together with a specific window design of the receiver or multiple receiver, specific information can be accommodated in the track to be scanned. It is also possible to arrange a plurality of tracks with different radii on one transmitter element, so that the number of signals to be processed and thus the quantity of information to be gathered can be increased considerably. This improves the application possibilities of the inventive transmitter element in many ways, and it is not only possible to obtain conventional position signals or measured signals, but it is also possible to define certain ranges within said types of signal by indexing same.

Abstract: The invention relates to a timing device for positioning a machine part which is moved by an actuator and a control circuit in a straight or circular path inside a housing. A timing disk or a timing ruler is used as a reference point for the positioning, wherein the timing disk or timing ruler is arranged in a beam path of a light source-sensor unit. A beam mask made of a film material is disposed between a light source and the timing disk or the timing ruler. Spacer elements which face the timing disk or timing ruler, and a positioning and mounting plane for registration with a base plate are provided. Also provided are guide means for the positioning the beam mask inside the housing in front of the light source.

Abstract: An angular position sensor unit has an encoder disc that is connected through a hub to an element whose angular position is to be measured. The encoder disc is made of a plastic material with a thickness between 0.1 and 1.0 mm and a planarity of <0.2 mm. An opening through the center of the encoder disc receives a flange of the hub. The flange has three or more ridges extending symmetrically in radial directions and engaging punched slots of the encoder disc. The slots conform to the contours of the ridges, so that the encoder disc is held in its position relative to the hub in a form-fitting, positive manner. In the axial direction, the disc is locked in place by the retainer.

Abstract: A Signal generation and correction circuit with an LED diode (D1) and a photo-transistor (Q1) having corresponding inputs and outputs (d1e, d1a and q1e, q1a), as well as connecting lines (1, 2) leading to current terminals (A, B). The inputs and outputs (d1e, d1a) and/or (q1e, q1a) of the diode (D1) and the photo cell (Q1) arc connected so as to form a parallel circuit, wherein a resistor (R2) is arranged in the photo-transistor line (3) between the output (q1a) and the node (K) with the connecting line (2) and wherein a resistor (R1) is arranged in the line (2) between the node (K) and the current terminal (B). A transistor (Q2) is connected with its base (q2b) to the output (q1a) or the photo-transistor line (3), whereas the collector terminal (q2c) is connected via a resistor (R3) to the connecting line (1). The collector current has a value of 0 when a photo current flows in the photo transistor (Q1).

Abstract: A method and apparatus are described for stabilizing optical signals that are generated by an LED and are converted into a voltage in a receiver, by returning a voltage signal derived from the receiver to the voltage supply of the LED, with the voltage signal being compared with a reference voltage, wherein when the returned voltage is lower than the reference voltage, the LED input voltage is increased and, conversely, when the returned voltage is greater than the reference voltage, the LED input voltage is decreased.