Abstract: The invention relates to a position measuring device (100), which supplies a multidigit code word (P) to a numeric control (300) via a serial interface (14). To determine the current functional state of the position measuring device (100) instantaneous values of analogue sampled signals (S6, S7) are also serially transmitted as multidigit amplitude-proportional code words (D6, D7). Said code words (D6, D7) are supplied to a diagnostic device (200), which displays a Lissajous figure (201) derived from said words, or independently performs an evaluation and generates warnings or alarms.

Abstract: A length measuring system that includes a length measuring device and at least one mounting element, which exerts an attractive force between a support and the length measuring device. One or more of the at least one mounting element are of such a size that a frictional force, which is a function of a total attractive force, assures on one hand an adhesion of the length measuring device to the support and, on another hand, also assures displaceablity of the length measuring device along the support during mounting.

Abstract: A linear encoder for use with a guide assembly includes a scale (21), a head (22) for scanning the scale (21), and mounting elements (30) for releasably attaching the scale (21) to the guide rail (11) of the guide assembly, with the mounting elements (30) being arrangeable outside of the mounting surface (14) of the guide rail (11) and having stop surfaces (31, 32) extending perpendicular to the longitudinal direction (X) of the guide rail (11) for a parallel alignment of the scale (21) along the guide rail (11) and encompassing and engaging reference surface (15, 16) of the guide rail (11).

Abstract: The invention relates to a length or angle measuring apparatus, wherein a holding device (6) that can be turned by means of a differential screw (16) and a flector joint (5) is used in order to perform an adjustment with the greatest possible sensitivity of the angle between a scale (2) and a scanning disc (9). Advantages in terms of vibration resistance of the array and the amount of components required are obtained by combining the differential screw (16) with a flector joint (5).

Abstract: A device for applying a scale element to a first body, in relation to which a second body can be moved in a measuring direction, the device includes an alignment element displaceable on a scale element in a measuring direction, and applied transversely thereto in a defined position, and includes a reference surface, which is adapted for interaction with a second reference surface on a second body and otherwise is loose in relation to the second body.

Abstract: An optical encoder including a scale, a scanning device displaceable relatively to the scale in a measuring direction and having a scanning reticle with at least one transparent window limited by an opaque screen and a partial grit formed of an electrically conductive material and provided at least in a region of the window.

Abstract: A linear measuring device having a mounting fixture (1), in which a scale (2) is supported is described. Scale (2) is coupled to the mounting fixture (1) in one plane (N1) of the mounting fixture (1), which contains the neutral axis (N) of the mounting fixture (1) and which runs in parallel with the surface of the scale (2) bearing the graduation scale (3). This arrangement reduces perturbations transmitted to scale (2).

Abstract: In connection with a position measuring system for great measuring lengths, several partial scale elements preferably formed of glass are applied on a base body. The partial scale elements are welded together.

Abstract: An angle measuring device having a graduation carrier, a scanning plate, a detector arrangement on a stationary element for measuring a rotational position of the graduation carrier with respect to the scanning plate around a first axis of rotation, wherein the scanning plate with the graduation carrier is rotatable with respect to the detector arrangement around a second axis of rotation; and the first and second axes of rotation extend parallel with respect to each other and are radially distanced from each other.

Abstract: A securing arrangement for transporting and mounting a measuring system used for the determination of the position of two components, which can be moved relative to each other. The securing arrangement includes a base body, which is linearly displaced along a displacement direction via a guide track of a support body of a measuring graduation of the measuring system and is fixed in place on the support body by clamping forces in order to maintain a mounting base that fastens a scanning device to one of the two components in a desired position in relation to the support body. A service element is provided on the base body and having an operating section for introducing and/or canceling the clamping forces, wherein the operating section of the service element laterally protrudes past a surface of the base body which faces away from the support body and is laterally bordered by a lateral edge, when the base body is fastened on the support body.

Abstract: A measurement system is described having parts that are not joined directly to the machine being measured, so that a change in the geometry of the machine cannot result in a shifting of the measurement systems relative to one another. The shifting of the measurement systems with respect to one another can also be compensated for by determining the change in the geometry of the machine and of the measurement systems, and compensating the measured value errors in accordance with a mathematical model for the change in geometry.

Abstract: An optical encoder including a scale, a scanning device displaceable relatively to the scale in a measuring direction and having a scanning reticle with at least one transparent window limited by an opaque screen and a partial grit formed of an electrically conductive material and provided at least in a region of the window.

Abstract: In connection with a position measuring system for great measuring lengths, several partial scale elements preferably formed of glass are applied on a base body. The partial scale elements are welded together.

Abstract: A length measuring instrument having a scale which can be scanned by a scanner device is provided. The scale is rotatably supported in an end region about the measurement axis X by a pivot bearing. The scanner device is guided on the scale so that rotations of the scanner device are transmitted to the scale. A length measuring instrument of this can be used especially advantageously in telescoping arms of a hexapod machine.

Abstract: A transmission of information takes place between a scanning unit of a position measuring system and an evaluation and power supply unit connected therewith through a power supply line which connects the scanning unit and the downstream-connected evaluation and power supply unit. The transmitted information relates, for example, to the position-dependent analog scanning signals generated by the scanning unit.

Abstract: A guide assembly to be mounted on a machine-tool or a measuring machine and including a guide rail mountable in the machine-tool or the measuring machine as an independent structural element, and a linear encoder mountable on the guide rail as a separate unit before mounting of the guide rail in the machine-tool or the measuring machine.