Abstract: In order to be able to perform a measurement of the run time of an electrical impulse in a position sensor through a single slow timed timing generator, while still capable to achieve a high precision of the measurement result, the entire run time is determined, so that the number of the completely performed system timings is counted as a coarse time value, and the fractions thereof are counted as a fine time value, in which the electrical impulse is started at a fixed point in time of the system timing, e.g. at the beginning of the timing, and the difference value is measured between the end of the coarse time interval and the arrival of the wave as a fine time interval, which is then digitized and computed with the coarse time value.

Abstract: The invention relates to a sensor element and to a path sensor constructed therefrom. The optical waveguide accommodated inside a supporting body, for example, a tube has to be placed in a defined position with regard to the elements of a board. In order to obtain a design that is both simple and easy to assemble, the invention provides that the head board, without its own surrounding housing, is fixed, for instance, glued directly inside a recess of the supporting body that is tubular for the most part.

Abstract: A measuring-cable position sensor is provided in a pressure tight, in particular explosion protected manner, wherein all functional elements besides the cable drum and the measuring cable are located in a pressure tight housing, which is stable enough, so that also in case of an explosion in the interior of the pressure-tight housing section no ignition spark can get through the gaps of the housing to the outside.

Abstract: The invention relates to a distance measuring device, in particular to a magnetostrictive distance measuring device, which can be manufactured in a simple and cost efficient manner and still satisfy strict requirements with respect to tightness, with an elongated housing, shaped as a stable, hollow, circumferentially closed particularly one piece profile, with a constant cross section contour in longitudinal direction, a wave conductor unit in the interior of the profile, wherein the wave conductor of the wave conductor unit extends in longitudinal direction of the profile, processing electronics, a slide movable in longitudinal direction on the outside along the profile, in particular with a magnet as signal generator, wherein the profile has an inner contour without shoulder over its entire length, and in the inner contour at least one insert with an inner contour is disposed torque proof, which also has inner comers, outer comers, and/or shoulders.

Abstract: As a rule, measuring cable position sensors consist of an axial arrangement of flat spiral spring, cable drum, and encoder. By locating the flat spiral spring within the interior of the cable drum, the construction length is reduced on one hand, and it becomes possible on the other hand to locate the cable outlet in one of the outer corners of the housing, which improves the application capabilities of the sensor.

Abstract: A position sensor based on the travel time principle of a mechanically elastic wave length having a wave guide, an electrical hollow return conductor, a detector coil attached to the wave guide and a position element which is movable along the wave guide which generates or detects mechanical elastic wave.

Abstract: A tension-relief cable feed-through for an electrical cable having an external diameter with insulation therearound and having a feed-through sleeve having a passageway therethrough which has an internal thread with an internal diameter having thread turns with indentations therebetween such that when the electrical cable is screwed into the passageway, the thread turns of the internal thread press in a form-closing manner into the outer circumference of the insulation surrounding the electrical cable.

Abstract: A tension-relief cable feed-through for an electrical cable having an external diameter with insulation therearound and having a feed-through sleeve having a passageway therethrough which has an internal thread with an internal diameter having thread turns with indentations therebetween such that when the electrical cable is screwed into the passageway, the thread turns of the internal thread press in a form-closing manner into the outer circumference of the insulation surrounding the electrical cable.

Abstract: In a high-efficiency method and pulse generator for generating short voltage pulses by means of a voltage booster having a first switch, an inductor and a storage capacitor, the first switch generates in the inductor current pulses which are fed to the storage capacitor when the output voltage falls below a predetermined limit value. The pulse generator thus generates a pulse output voltage which is greater than a fed input voltage and is in any desired relationship therewith. The pulse output voltage is fed to a load element by an output switch. The power losses remain low due to pulse-wise charging of a storage capacitor with current pulses.

Abstract: A measuring cable travel sensor includes a housing and a cable drum which is arranged in the housing rotatably and longitudinally displaceably in the longitudinal direction of the travel sensor. The measuring cable is guided into and out of the housing through a stationary cable guide. The travel sensor has a longitudinal drive for displacing the cable drum, including a spindle drive comprising a screwthreaded spindle and a spindle nut screwable thereon. The longitudinal drive has an additional transmission for transmitting rotary movement of the cable drum to the spindle drive for producing cable drum displacement.

Abstract: A measuring cable travel sensor comprises a measuring cable, and a cable drum for winding on and off the measuring cable. A spiral spring is arranged non-rotatably with the cable drum coaxially therewith, on the rotary trunnion of a rotary angle sensor for sensing rotation of the cable drum. The cable drum and the spiral spring are disposed in a housing which forms at least one mechanical internal space for same. The housing has at least two flat outside surfaces which are a right angle to each other. The housing parts are in the form of plastic injection moldings, and the sensor can be assembled very easily and quickly. The external configuration of the housing makes it possible to afford very many different possible ways of fixing it in position relative to the surrounding structure. The sensor is assembled by a method affording simplicity and speed.

Abstract: Length measuring devices in which the pitch division on the measuring scale involves differing magnetisation which is sensed by means of a sensor unit are subsequently adjustable in terms of the resolution afforded. For the purposes of improved utility this so-called interpolator circuit is not disposed in a separate fixedly mounted housing which is separate from the movable sensor unit, but directly within the sensor unit.

Abstract: A time/analog converter for adjusting the zero point and amplification of the output characteristic of a sensor includes an integrator whose output is connected to the input of a holding member. A reference voltage and the output voltage of the holding member occur at the input of the integrator. A control means actuates switches connecting the integrator to the holding member and applying the reference voltage and the output voltage to the input of the integrator so that the reference voltage is at the integrator input for a first time interval and the holding member output voltage is at the integrator input for a second time interval. The integrator output voltage is applied to the holding member for a third time interval. A controllable pulse shaper is connected to one of the switches and can close it for a required time interval. A related method is also described.

Abstract: Claimed are a method and an arrangement for the transmission of useful signals of a magnetostrictive position sensor which is arranged within a housing, including a control circuit (1) for generating an electrical control pulse, a pulse generator (2) for exciting current pulses in the ultrasonic exciter circuit (6), an ultrasonic pulse detector (3) which upon the reception of an ultrasonic pulse on a magnetostrictive waveguide supplies a corresponding electrical reply signal, and an evaluation circuit (4) for determining the relative position of a position marking (magnet) which is displaceable along the waveguide. Therein the individual circuits of the electronics of the magnetostrictive sensor are to be supplied by way of a cable which is of thinner cross-section and both control pulses and also reply pulses are to be transmitted as useful signals by way of that cable.

Abstract: A magnetostrictive travel measuring device which in spite of simplicity of manufacture minimises the amount of space required and at the same time provides optimum protection for the device and does not excessively limit the mobility of the component to be monitored with respect to the waveguide, comprising an elongate housing in the form of a hollow, peripherally closed profile with at least one flat external surface, a waveguide unit in the interior of the housing, wherein the waveguide of the waveguide unit extends in the longitudinal direction of the profile, and an electronic evaluation system, characterised in that the external contour of the profile has, associated with each external surface, at least one pair of external grooves.

Abstract: Magnetic length measuring devices must be simple and inexpensive to produce, in particular in respect of the sensor head, and in a simple and inexpensive manner must permit assembly of the measuring scale in well-protected form. In accordance with the invention that is achieved by the specific form of housing and manner of assembly of the sensor head on the one hand and the structural shape and manner of fixing of the profile bar on the other hand.

Abstract: A measuring cable travel sensor comprises a housing accommodating a measuring cable drum and a rotary spring operable to urge the cable drum in the direction of winding thereon a measuring cable. A rotary angle sensor is mounted to the housing on the outside thereof. The rotary angle sensor has a sensor shaft with a projecting end trunnion portion. The cable drum is fixed on the sensor shaft trunnion portion non-rotatably in concentric relationship thereon. The travel sensor is of a compact structure, in particular in its axial direction, and simple and inexpensive to produce.

Abstract: A measuring cable travel sensor includes a housing accommodating a rotatable cable drum for winding a measuring cable on to and off same, and a spring for urging the cable drum in the winding-on direction. A rotary angle sensor is operatively associated with the cable drum. The housing at least partially includes a straight profile portion which is of uniform cross-section in its longitudinal direction. The spring can also be disposed in a spring casing portion substantially including a straight profile portion of uniform cross-section in its longitudinal direction.

Abstract: A support for a waveguide for conducting mechanical waves has a high proportion of gas and a low proportion of solid material. The support may include a plurality of annular flanges spaced along the waveguide for supporting the waveguide at small contact surface areas. The support may include open-cell or closed cell material.

Abstract: A measuring cable travel sensor for detecting the position of a movable body and operable under differential pressure comprises a cable drum for winding on and off a measuring cable, a spring for prestressing the cable drum to wind on the measuring cable and a rotary position sensor for detecting the position of the cable drum. The sensor has a differential pressure chamber which is under the differential pressure and in which a cable eye for connection of the cable to the movable body is arranged, a cable chamber in which the cable drum is arranged and a spring chamber in which the spring is arranged. The differential pressure chamber communicates at least with the cable chamber and the spring chamber.