Abstract: A device is provided for metering at least one water-quality chemical in a water tank (1). The device comprises a metering duct (14) with an outlet port (16), a metering unit (13) for metering the water-quality chemical through the metering duct (14) and a control unit (12) which is connected to the water-quality sensor (10) and controls the metering unit (13), wherein the metering unit (13) and the control unit (12) are received in a housing (19) and a supply (17) is receivable in the housing (19) or connectable thereto and a carrier (9a; 9b; 24), to which a water-quality sensor (10) and an outlet port (16) of the metering duct (14) are fixed, is designed for insertion into the water tank (1), such that the outlet port (16) of the metering duct (14) is located downstream of the water-quality sensor (10).

Abstract: The invention relates to a position measuring system for scanning a movement between a first element and a second element which is arranged in a moveable manner in relation to the first element. Said system comprises a material measure which can be fixed to the first element and has a scale carrier, and a scanning head which can be fixed to the second element and which scans a movement of the material measure in relation to the scanning head. The inventive system comprises a mount by which means the material measure and the scanning head can be fixed to each other in a pre-determined position, the scanning head being detachably fixed to the scale carrier. In order to assembly one such position measuring system on a first element and a second element moving in relation thereto, the scanning head is fixed to the material measure in such a way that the scanning head and the material measure are mutually fixed in position.

Abstract: The invention relates to a position measuring system for scanning a movement between a first element and a second element which is arranged in a moveable manner in relation to the first element. Said system comprises a material measure which can be fixed to the first element and has a scale carrier, and a scanning head which can be fixed to the second element and which scans a movement of the material measure in relation to the scanning head. The inventive system comprises a mount by which means the material measure and the scanning head can be fixed to each other in a pre-determined position, the scanning head being detachably fixed to the scale carrier. In order to assembly one such position measuring system on a first element and a second element moving in relation thereto, the scanning head is fixed to the material measure in such a way that the scanning head and the material measure are mutually fixed in position.

Abstract: A device and method for conditioning a periodic analog signal to predetermined positive and negative desired peak values. The signal is adjusted using multiplicative correcting steps, which modifies the signal amplitude. An additive correcting step adds to the signal, a constant which adjusts the signal level in a positive or negative direction. Upon detection of a current actual peak value, the difference between the actual peak value and the predetermined desired peak value is stepwise reduced by repeated adjustments of the signal using modifying steps within a part of a period of the signal, each modifying step includes exactly one multiplication and exactly one additive correcting step.

Abstract: An optoelectronic module including a transparent substrate that carries a conductor track, an optoelectronic chip having an optoelectronic sensor and/or emitter for light disposed on the substrate, and via a contacting element the chip is connected to the conductor track and kept spaced apart from the transparent substrate. An opaque light blocking element, disposed between the substrate and the chip, that shields the sensor from lateral incident light and/or lateral light opposite the emitter.

Abstract: An opto-electronic linear, angular, or rotary position encoder is described. The device includes a light modulating code carrier comprising at least one coded track having adjacent light projecting and light non-projecting portions and an aperture structure disposed in a path of light being modulated by the code carrier. The device further includes a transparent substrate supporting at least one opto-electronic sensor chip facing the aperture structure, wherein the aperture structure is disposed on an aperture platelet, and the aperture platelet is joined to the substrate.

Abstract: In a process for arranging an angle scale at an index disk for rotational measurement systems, wherein the index disk is provided with a central opening for mounting on a carrier shaft, a clamping device which deforms elastically in the radial direction when the index disk is mounted on the carrier shaft is arranged in the opening, the index disk is subsequently mounted on a reference shaft and the angle scale is then arranged on the index disk so as to be exactly centered with respect to the center axis (A—A) of the reference shaft. The index disk formed in this way accordingly has a clamping device along the circumference of the central opening, which clamping device is deformed elastically in the radial direction when the index disk is mounted on the carrier shaft, contacts the outer surface of the carrier shaft accompanied by tension and, in doing so, centers the index disk in its mounted state relative to the carrier shaft.