Abstract: The invention relates to a transmission and reception unit for the detection of a rotary angle, having a light transmitter for the transmission of transmitted light to a dimensional scale and having a light receiver which lies on a support, the light receiver having a front side for the reception of reception light influenced by a dimensional scale disposed opposite the front side and having a rear side which is supported on a support transparent for the transmitted light. In order to provide a new assembly concept for the positioning of the light source and of the receiver and in particular to provide an arrangement which is as symmetrical as possible it is suggested that the transparent support is arranged between the light receiver and the light transmitter and that a light deflection apparatus is provided for the deflection of the transmitted light.

Abstract: The invention relates to a capacitive position encoder (1), comprising at least one capacitor with a first capacitor plate and a second capacitor plate, a dielectric modulator that is movably arranged between said first capacitor plate and said second capacitor plate, a signal source (11) for providing a phase-shifted excitation signal to the first capacitor plate of said at least one capacitor, and a charge amplifier (20) that is electrically connected to the second capacitor plate of said at least one capacitor, wherein a feedback loop (21) of the charge amplifier (20) comprises a feedback capacitor (Cf), wherein the capacitive position encoder (1) also comprises a shock cancellation circuit (30) that forms a parallel circuit with the feedback loop (21) including the feedback capacitor (Cf) and that the shock cancellation circuit (30) comprises a low pass filter (31).

Abstract: The invention relates to an angular encoder (10) for monitoring the angular position of a rotating shaft (32), with a modulator (34) which can be positioned on the rotating shaft in order to provide a signal which changes as a function of the angular position of the rotating shaft (32), and with a receiver (22) for the reception of the signal which changes as a function of the angular position of the rotating shaft (32), in which the receiver (22) and the modulator (34) are positioned in such a way as to be thermally insulated from each other, so that the transfer of heat from the modulator (34) to the receiver (22) is impeded, while thermal insulation is achieved at least in part by a thermally insulating separator (35), which is positioned between the modulator (34), on the one hand, and the transmitter (21) and/or the receiver (22), on the other hand. The invention further relates to a drive system (100) with an angular encoder (110) of the type described.

Abstract: A stator coupling for the torsionally rigid connection of two components allows radial and axial relative movements within tolerance limits has a base surface (10) with first (18.1, 18.2) and second (28) lugs. The second lugs (28) are positioned at the straight-line edges between the assembly points (26, 42). Bent edges (30, 32) parallel to one respective edge are bent away at least twice, so that a flange (34.1, 34.2, 34.3, 34.4) surface-parallel to the base surface (10) is formed. Two second lugs, are positioned at edges following one another in the peripheral direction, and overlap with mutually facing ends of their flanges and these ends each together form one of a set of second assembly points (42.1, 42.2).

Abstract: The invention relates to an angle of rotation sensor comprising a rotatable first code disc, at least one first image sensor and at least one optics which images an optical code of the code disc onto the first image sensor.

Abstract: A method for checking the operability of a digital signal processing unit of a position sensor, wherein the digital signal processing unit executes an instruction queue of N instructions one after another in sequences, wherein an additional number of x instructions is executed by the digital signal processing unit during each sequence, wherein the additional instructions are provided in a unit different from the memory, and that the results of the additional instructions are stored. The results of the additional instructions are read by a microcomputer. The results of the additional instructions are compared by the microcomputer with the expected results achieved by execution of identical additional instructions by the microcomputer or with expected results stored in the microcomputer. This includes a position encoder comprising a digital signal processing unit for calculating position information.

Abstract: A device for measuring the rotating angle of two objects rotating in relation to each other around an axis includes a light source and a polarizer, whereby the light source and the polarizer rotate in relation to each other as function of the rotating angle. The device also includes a receiver measuring the luminous intensity reflected by the polarizer, to produce a signal dependent on the rotating angle. The receiver has at least one initial reception element and the light emitted by the light source is either polarized or becomes polarized. A polarizing filter with an initial direction of polarization is positioned in front of the first reception element. At least one element casting a shadow is positioned in front of the receiver and the receiver has at least one quadrant diode. The position and/or shape of the shadow are varied on the receiver over a rotation of 360°.

Abstract: Position encoder for measuring a position containing a sensor 2, providing electrical signals representing the angular position, a measuring device for measuring the electrical signals and outputting at least one electrical position signal representing the angular position and signal processing means 3, processing the position signal, the signal processing means 3 exhibiting an adaptive filter comprising at least a speed estimator 5 outputting an estimated speed and connected in parallel a speed limiter 7 that depending from the estimated speed limits a change in the position signal.

Abstract: The invention relates to a device for measuring the relative position of two objects moving relative to each other along an axis or around a rotating axis (D), with a transmitter (12) which emits unpolarized light, and with a polarizer (20), and with at least one receiver (16) which measures the luminosity of the light passing through the polarizer (20) in order to create a position-dependent signal, such that a polarizing filter is positioned in front of the receiver (16), and the receiver (16) and the polarizer (20) move relative to each other as a function of the relative position of the two objects, and such that the polarizer (20) has at least two different polarizing directions.

Abstract: The invention relates to a transmission and reception unit for the detection of an angle of rotation comprising a light transmitter (20), a light receiver (22) and a transparent support (24) which is arranged therebetween and which lies areally on the light receiver (22) and covers it, wherein the light transmitter (20) is attached to the support (24) and irradiates in a direction (28) away from the light receiver (20), wherein the light transmitter (2) is arranged centrally above the light receiver (22) such that received light (32) can be incident past the light transmitter (22) on the light receiver (32) and to a rotary encoder comprising such a unit.

Abstract: Phase information of a rotation system is obtained by a) reading the present output value Sk, (k=0, . . . , N?1) of the sensor at a sequence of N points of time during a first period of a periodic modulation function (PHA,PHB,PHC, PHD), b) storing read output values Sk or a value derived from this output value at least temporarily in a memory, c) extracting information on the phase of the rotating system, wherein said information is extracted based on evaluation of a function of the type, wherein=and, and d) sampling and storing sequentially further output values Sk, k=N,N+1, . . . of the sensor at corresponding points of time in the following periods of the periodic modulation function (PHA,PHB,PHC, PHD). Each reading information on the phase of the rotating system based on the function is extracted and a controller device (100) for application of this technique.

Abstract: An apparatus for position determination has an optical scanning unit which is to be moved relative to a surface and which includes an image sensor for detecting light intensity patterns of light which is reflected by the surface. The apparatus furthermore has an electronic processing unit which is associated with the image sensor and configured to determine a traveled movement path and/or a movement speed of the optical scanning unit relative to the surface from a difference between light intensity patterns detected after one another in time. A further processing unit is configured to produce an intensity correlated signal which correlates with the intensity of the light reflected by the surface. An evaluation device is associated with the image sensor and is configured to recognize a graphical code pattern located on the surface with reference to the intensity correlated signal and to read out information from the code pattern.

Abstract: Measurement of the rotating angle of two objects rotating in relation to each other is achieved with a transmitter assigned to one of the objects. The transmitter emits light that is either polarized or becomes polarized by means of a polarization filter, and with a polarization-sensitive polarizer such that the transmitter and the polarizer rotate relative to each other as dependent on the rotating angle. A receiver measures the luminosity of light passing through the polarizer in order to create a signal that is dependent on the rotating angle, and where the receiver has at least two receiver elements which detect light of differing polarization.

Abstract: An angle of rotation sensor having a rotatable first code disc (2), at least one first image sensor (8) and at least one optics (18), which images an optical code (14) of the code disc (2) onto the first image sensor (8), wherein at least one second rotatable code disc (4) is provided which is either directly or indirectly rotatably connected to the first code disc (2) with a transmission ratio, wherein an optical code (14) of the second code disc (4) is imaged onto the first image sensor (8) by means of a second optics (20).

Abstract: The disclosure conveys a device for measuring the rotating angle of two objects which rotate relative to each other around a rotating axis, with one transmitter, which is assigned to one of the objects and which emits light that is polarized, and with a polarization-sensitive polarizer, such that the transmitter and the polarizer rotate relative to each other, and such that the polarizer has a polarizing area and a non-polarizing area, where the non-polarizing area is positioned eccentric to the rotating axis, and such that the device has a first receptor and a second receptor which measure a portion of the luminosity passing through the polarizer producing signals that are dependent on the rotating angle, and where the first receptor has a first reception area, and the second receptor has a second reception area which is distinct from the first reception area.

Abstract: Device for measuring the rotating angle of two objects rotating in relation to each other, with a transmitter which is assigned to one of the objects and which emits light that is either polarized or becomes polarized by means of a polarization filter, and with a polarization-sensitive analyzer such that the transmitter and the analyzer rotate relative to each other as dependent on the rotating angle, and with a receiver which measures the intensity of light passing through the analyzer in order to create a signal that is dependent on the rotating angle, where a magnetized element is positioned on one of the objects and a sensor for detecting a magnetic field is positioned on the other object.

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: The invention relates to an optoelectronic sensor element (20) having at least one reception element (22, 22a, 22b, 22c, 22d) in front of which a polarizing structure (24, 24a, 24b, 24c, 24d) is arranged which is manufactured from an electrically conductive material, with the polarizing structure (24, 24a, 24b, 24c, 24d) having a contact connection (26) for the application of a defined tension and with the polarizing structure (24, 24a, 24b, 24c, 24d) being configured as a screen of the sensor element (20).

Abstract: The disclosure relates to a process for measuring the rotation angle of two objects rotating in relation to each other, with a transmitter assigned to one of the objects, and with an element which influences the direction of polarization, where the transmitter and the element rotate relative to each other, and where the luminous intensity passing through, or reflected by, the element is measured by a receiver and then evaluated as a signal dependent on the rotation angle, and where the receiver groups of receiver elements sensitive to polarization, and where the polarization planes of the receiver elements in each group are rotated in relation to each other, and where the reception signals of at least two of the receiver elements are evaluated independent of each other in a monitoring mode. The disclosure also relates to an apparatus for implementing the process.