Abstract: The present disclosure relates to a transponder for object identification comprising at least one semiconductor component (36) for storing information and at least one antenna (11) for communicating the information with an external unit, the antenna (11) being formed by a conductor on a circuit board (7) and the semiconductor component (36) being mounted on the circuit board (7), the circuit board (7) being included in a housing (2), and it relates to a fabrication method of a generic kind. In order to improve the resistance of the transponder against harmful external influences, such as high temperatures, and to prolong its life cycle, the invention suggests that the semiconductor component (36) is included in an enclosure (18) that is hermetically sealed and fixed on a surface (12, 13) of the circuit board.

Abstract: The present disclosure relates to a proximity sensor having a coil (15) for generating a magnetic field and a sensor circuit (62) for detecting variations of the magnetic field caused by an external object, the sensor circuit (62) comprising at least one semiconductor component (36, 37, 67, 69, 70, 71) mounted on a circuit board (17), wherein the coil (15) and the circuit board (17) are arranged in a housing (2) through which the magnetic field is transmittable. In order to improve the resistance of the proximity sensor against harmful external influences, such as high temperatures, and to prolong its life cycle, the invention suggests that the semiconductor component (36, 37, 67, 69, 70, 71) is included in an enclosure (20) that is hermetically sealed and fixed on a surface (18, 19) of the circuit board (17).

Abstract: An inductive proximity switch for detecting the presence of an object in a monitored area includes a coil (2), a pulse source (4) for supplying the coil (2) with transmitting current pulses (S1, S2, S3) at a period (T) larger than the duration (Ts) of the transmitting current pulses, and a processing circuit (6) for generating an output signal (9) based on received voltages (Ui1, Ui2, Ui3) varying in dependence of a change of position of the object. The received voltages are induced in the coil (2) after the duration (Ts) of a transmitting current pulse by the decaying current which previously flows in the object due to the voltage induced therein by the coil. The proximity switch has a suppression circuit (13, 13a, 13b, 13c) for suppressing a signal duration lower than a predetermined perturbation time (Tc1, Tc2) in the output signal (9).

Abstract: The present disclosure relates to a proximity sensor having a coil (15) for generating a magnetic field and a sensor circuit (62) for detecting variations of the magnetic field caused by an external object, the sensor circuit (62) comprising at least one semiconductor component (36, 37, 67, 69, 70, 71) mounted on a circuit board (17), wherein the coil (15) and the circuit board (17) are arranged in a housing (2) through which the magnetic field is transmittable. In order to improve the resistance of the proximity sensor against harmful external influences, such as high temperatures, and to prolong its life cycle, the invention suggests that the semiconductor component (36, 37, 67, 69, 70, 71) is included in an enclosure (20) that is hermetically sealed and fixed on a surface (18, 19) of the circuit board (17).

Abstract: The present disclosure relates to a transponder for object identification comprising at least one semiconductor component (36) for storing information and at least one antenna (11) for communicating the information with an external unit, the antenna (11) being formed by a conductor on a circuit board (7) and the semiconductor component (36) being mounted on the circuit board (7), the circuit board (7) being included in a housing (2), and it relates to a fabrication method of a generic kind. In order to improve the resistance of the transponder against harmful external influences, such as high temperatures, and to prolong its life cycle, the invention suggests that the semiconductor component (36) is included in an enclosure (18) that is hermetically sealed and fixed on a surface (12, 13) of the circuit board.

Abstract: The invention relates to a method of manufacturing an inductive proximity switch, in which an enclosure is formed from a single piece of a non-ferromagnetic metal and electronic components are inserted into the enclosure, and to a corresponding proximity switch. The electronic components comprise a coil configured to be supplied with transmitting current pulses and a processing circuit configured to generate an output signal based on received voltages induced in the coil after the duration of the transmitting current pulses. In order to fabricate a proximity switch with an improved robustness by maintaining its proper functionality, the invention suggests that forming of the enclosure comprises the step of deep drawing a sheet of the non-ferromagnetic metal to a tubular element with a front wall covering its front end and a side wall delimiting an inner space for receiving the electronic components.

Abstract: An optical sensor system comprises one or more optical sensor devices, a master device and an electrical bus connecting the sensor devices to the master device. The bus comprises a signal daisy chain for the transmission of synchronization events. The sensor devices are adapted to detect a synchronization event at a signal input terminal, to time an optical activity based on this synchronization event and to provide at a signal output terminal a synchronization event delayed by an offset time with respect to the detected synchronization event. A property of the synchronization events provided by the sensor devices is indicative of an output value of the respective sensor device, corresponding to a state of an optical section to which the sensor is sensitive.

Abstract: A method and a device for monitoring objects moving along a trajectory. The objects include a section that is transparent or translucent. The objects subsequently cross a light beam at the section. The presence or absence of an object is determined during a transitional time period during which substantially no light or light within a wavelength range substantially untransmittable through the section is detected. A monitoring device generates an output signal based on the light detection indicating the presence or absence of an object.

Abstract: The gear unit for use with a manually adjustable electric component has a manually operable adjusting shaft and a reduction gear including a rotatable ball cage and a plurality of balls as well as a race ring element having a spring and retaining portion that encircles the race ring externally. Such a gear unit allows greatly reduced dimensions and furthermore offers a considerable dielectric strength.

Abstract: The invention relates to an inductive proximity sensor for embedding in a mild steel mounting plate, comprising an enclosure with a front wall of synthetic material forming a sensing face at a front end of the enclosure, an oscillator comprising a sensor coil with a core made of a material with a relative magnetic permeability larger than 1, typically a ferrite, which is arranged within the enclosure behind the front wall so that an open side of the core is directed towards the sensing face in order to direct the magnetic field of the coil towards a target in front of the sensing face, a hollow cylindrical metal member arranged perpendicular to the sensing face and surrounding the core, and a measuring circuit for measuring an attenuation of the oscillator due to eddy currents. The core is radially surrounded by a metal layer with a low electrical resistivity of less than 15 ??·cm and with a thickness of less than 40 ?m, in order to improve the embeddability of the sensor.

Abstract: An inductive proximity switch for detecting the presence of an object in a monitored area includes a coil (2), a pulse source (4) for supplying the coil (2) with transmitting current pulses (S1, S2, S3) at a period (T) larger than the duration (Ts) of the transmitting current pulses, and a processing circuit (6) for generating an output signal (9) based on received voltages (Ui1, Ui2, Ui3) varying in dependence of a change of position of the object. The received voltages are induced in the coil (2) after the duration (Ts) of a transmitting current pulse by the decaying current which previously flows in the object due to the voltage induced therein by the coil. The proximity switch has a suppression circuit (13, 13a, 13b, 13c) for suppressing a signal duration lower than a predetermined perturbation time (Tc1, Tc2) in the output signal (9).

Abstract: An enclosure (1) comprising a hollow profile (2) with an open side portion on which a covering plate (3) is watertightly attached, the profile (2) being provided with at least one end closure (4) comprising a watertight sealing (41) disposed at the end of the profile (2). In order to improve the waterproof properties, in particular for an electronic enclosure, by keeping constructional modifications on the enclosure as low as possible, a jamming member (40) is provided inside the sealing (41), the jamming member (40) being adapted to exert a pressing force on at least two opposed side portions (71-76) of the sealing (41) acting in a transverse direction (92, 93) with respect to a plate-adjoining side (48) of the sealing (41) which is disposed adjacent to the covering plate (3).

Abstract: An optical sensor system comprises one or more optical sensor devices, a master device and an electrical bus connecting the sensor devices to the master device. The bus comprises a signal daisy chain for the transmission of synchronization events. The sensor devices are adapted to detect a synchronization event at a signal input terminal, to time an optical activity based on this synchronization event and to provide at a signal output terminal a synchronization event delayed by an offset time with respect to the detected synchronization event. A property of the synchronization events provided by the sensor devices is indicative of an output value of the respective sensor device, corresponding to a state of an optical section to which the sensor is sensitive.

Abstract: The invention relates to an inductive proximity sensor for embedding in a mild steel mounting plate, comprising an enclosure with a front wall of synthetic material forming a sensing face at a front end of the enclosure, an oscillator comprising a sensor coil with a core made of a material with a relative magnetic permeability larger than 1, typically a ferrite, which is arranged within the enclosure behind the front wall so that an open side of the core is directed towards the sensing face in order to direct the magnetic field of the coil towards a target in front of the sensing face, a hollow cylindrical metal member arranged perpendicular to the sensing face and surrounding the core, and a measuring circuit for measuring an attenuation of the oscillator due to eddy currents. The core is radially surrounded by a metal layer with a low electrical resistivity of less than 15 ??·cm and with a thickness of less than 40 ?m, in order to improve the embeddability of the sensor.

Abstract: The gear unit for use with a manually adjustable electric component has a manually operable adjusting shaft and a reduction gear including a rotatable ball cage and a plurality of balls as well as a race ring element having a spring and retaining portion that encircles the race ring externally. Such a gear unit allows greatly reduced dimensions and furthermore offers a considerable dielectric strength.

Abstract: A rope position sensor for the surveillance of the position of the traction or carrying rope of a transport installation on a grooved pulley comprises an inductive distance measuring unit capable of emitting an alternating magnetic field and of detecting the attenuation of that magnetic field by the presence of the rope 1 in a proximity zone. The sensor is adapted to detect the rope in at least three proximity zones (z1, z2, z3) and to produce an output signal containing information indicating the proximity zone in which the rope is being detected to indicate the position of the rope at the pulley.

Abstract: The invention relates to a cable gland. The latter comprises a gland body for feeding a cable therethrough, an elastic sealing ring that is applicable to the front side of the gland body and whose internal diameter essentially corresponds to the diameter of the cable, and a gland ring that is applicable to the sealing ring on the opposite side of the gland body and is maintained by connecting means in an assembled condition at such an axial distance from the gland body that the sealing ring is clamped between the gland ring and the gland body so that its radially inner surface is pressed against the cable. These connecting means form a snap-on connection that is closable for the assembly of the cable gland by axially pushing together the gland ring and the gland body and that connects the gland ring and the gland body undetachably in their closed condition.

Abstract: The low noise light receiver comprises a light sensor for generating a sensor signal, the sensor signal comprising a wanted signal resulting from a light source and an interfering signal resulting from interfering light; an optical filter apparatus for reducing the interfering light; an electric filter apparatus connected to the light sensor for filtering out the interfering signal and for generating a correction signal that substantially compensates for the interfering signal; and a processing apparatus connected to the light sensor and the electric filter apparatus for processing the wanted signal in order to generate an output signal (Vout).

Abstract: The invention relates to a cable gland. The latter comprises a gland body for feeding a cable therethrough, an elastic sealing ring that is applicable to the front side of the gland body and whose internal diameter essentially corresponds to the diameter of the cable, and a gland ring that is applicable to the sealing ring on the opposite side of the gland body and is maintained by connecting means in an assembled condition at such an axial distance from the gland body that the sealing ring is clamped between the gland ring and the gland body so that its radially inner surface is pressed against the cable. These connecting means form a snap-on connection that is closable for the assembly of the cable gland by axially pushing together the gland ring and the gland body and that connects the gland ring and the gland body undetachably in their closed condition.

Abstract: The antenna and the electronic control circuit of the transponder are contained in a totally hermetical metallic enclosure. The antenna of the reader is protected from the environment by a metallic front plate that is integral with the enclosure containing the electronic control circuit. In a preferred embodiment, the enclosure is hermetically tight. These embodiments fulfill the longstanding need to obtain completely tight elements that are resistant to industrial aggressions.