Abstract: The invention relates to a device for determining the filling level of a filling material in a container, having a signal-generating unit, which generates electromagnetic measuring signals, having a transceiver unit (2), which emits the measuring signals via an antenna (1) in the direction of the surface of the filling material and which receives the echo signals reflected at the surface of the filling material, the antenna (1) comprising a waveguide (3) which widens in the direction of emission into a cavity (4) of a defined shape, and having an evaluation unit which determines the filling level in the container from the propagation time of the measuring signals.

Abstract: The invention relates to a device for determining the fill level of a filling substance in a container. The device includes a signal generator unit which generates high-frequency signals, a transmitter/receiver pair which transmits the signals via an antenna and receives the signals which have been reflected on the surface of the filling substance. A coaxial line is also included which has an inner conductor and an outer conductor for bearing the signals, and an evaluation unit which determines the fill level in the container using the transit time of the signals. The antenna has a wave duct which is delimited by a rear wall. A send line is provided on the rear wall of the wave duct, which runs substantially within the wave duct, whereby a first end section of the send line is connected to the inner conductor of the coaxial line.

Abstract: The invention relates to a device for emitting high-frequency signals, comprising a signal generation unit (6), a signalling line (12), an emission cable (16) and an antenna configured as a circular waveguide (10), said antenna being sealed in an end section by a rear wall (15). According to the invention, the signal generation unit (6) creates the high-frequency signals, the signalling line (12) conducts the high-frequency signals along the emission cable (16) and said emission cable (16) projects into the interior of the antenna (10) and is positioned approximately parallel to the rear wall (15). The invention aims to provide a device for emitting electromagnetic waves, which is characterized by optimized emission characteristics. To achieve this, the distance (Z) between the emission cable (16) and the rear wall (15) of the antenna (10) is approximately &lgr;/6, whereby &lgr; is the wavelength of the high-frequency signals borne by the antenna (10).

Abstract: The invention relates to a method and to a device for monitoring electric components in a pick and place device for substrates. The underside of a pick-up (2) is monitored by an optical scanning means (7) during the pick-up phase and during the placing phase of a component (10). A lift drive (3) for the pick-up (2) is provided with a position sensor (5) that is linked with a control device (6). The scanning means (7) emits and receives a scanning beam (22) oriented transversally to the direction of lift and is likewise coupled with the control device (6), thereby allowing to monitor the underside of the pick-up (2) in a direct time-related manner with the picking and placing of the component (10). The various lift positions are saved and compared when a threshold value of the received scanning beam (22) is exceeded so that the inventive device also allows for a monitoring of the height of the component.

Abstract: Disclosed is an arrangement for making it possible to pick up movable components for transporting purposes and/or to set them down in order to place them for example on a device which is to be produced. Therefore, a measuring arrangement may reliably measure the presence of the movable component at an opening of a tubular element. The measuring arrangement here measures, on the basis of a temperature measurement, the gas through flow through the tubular element, which, in turn, can be related directly to the presence or absence of a component at the opening.

Abstract: This level measuring instrument which operates with microwaves, has a radiation characteristic with a pronounced forward lobe and can be used to transmit and/or receive microwaves with a large frequency bandwidth. A housing section is designed as a waveguide short-circuited at one side and one end by a rear wall, and is virtually completely filled with an insert made of a dielectric. An exciter element, projects into the housing section and is connected to a microwave source. An antenna adjoins the housing section, for transmitting and/or receiving microwaves. A gap is arranged in the insert between the exciter element and the antenna. The gap forms a filter which is essentially non-transparent to higher modes of the waveguide.

Abstract: A pressure control means comprising a jet pump (1) whose pressure state in a branch flow duct (4) may be changed by means of a choke (6), which influences the spent air flow from the jet pump (1). This renders possible a rapid and stepless variation of the pressure state in the branch flow duct (4).

Abstract: The invention concerns an assembly for the pressure-tight separation of a first waveguide (12) from a second waveguide (16), having a pressure-resistant conductor body (22) and a first adaptor (26), which is arranged between the first waveguide (12) and the end of the conductor body (22) facing the latter, and a second adaptor (30), which is arranged between the second waveguide (16) and the end of the conductor body (22) facing the latter, the dielectric constants of the first and second adaptors (26, 30) lying between those of the conductor body (22) and the waveguides (12, 16). An assembly of this kind can be used in particular for an electronic device with a contact pin (10) and an antenna (18), the contact pin (10) radiating into a first waveguide (12) and the antenna (18) being connected to a second waveguide (16) and a pressure-tight bushing for microwave radiation being required between the first and second waveguides (12, 16).

Abstract: A motor vehicle door having an outer door panel and an inner door panel provided with a large-surface cut-out section wherein the cut-out section is covered wholly or in part by a support plate and wherein the support plate supports mechanical and/or electrical components, such as a window lifter, lock, side airbag, electronics and electric cables, and having a door inside trim which closes the vehicle door from the interior of the vehicle. The support plate and at least one part of the door inside trim are formed as one structural unit which is made in one tool wherein the support plate and the part of the door inside trim are connected together so that they can be folded together.

Abstract: An antenna for transmitting microwaves is provided, which radiates microwaves to be transmitted as far as possible uncorrupted into free space and operates in a low-loss manner, having a circular waveguide (13) short-circuited at the end on one side, in which circular waveguide a transmitting element (15, 33) for feeding in microwaves is arranged, a funnel-shaped horn (25) adjoining an open end of the circular waveguide (13), the radius of which horn increases in the direction facing away from the circular waveguide, and an insert (27) made of a dielectric, which insert has a first cylindrical section (29), which fills the circular waveguide (13), and which insert has a conical section (31), whose tip points in the direction facing away from the circular waveguide and whose base area has a diameter which is greater than a diameter of the cylindrical section (29).

Abstract: A sealing arrangement including a sealing ring with a support ring extending substantially in a radial direction. The support ring is joined in the radial direction to a first sealing element that lies in contact with and is nonrotatable with respect to a first machine element to form a static seal. The support ring is also joined in the radial direction to a second sealing element that is placed against a second machine element rotatably with respect to the second machine element to create a dynamic seal. The first and second sealing elements are each made of an elastomeric material, and the sealing ring has, in order to sense rotational movements of the first machine element about its axis, at least one auxiliary device that can move past a rotational speed sensor. The auxiliary device can be a multipole ring made of a pasty, hardenable, and magnetizable material that is arranged as a intermediate layer of film-like thinness on the side of the support ring facing the rotational speed sensor.

Abstract: This level measuring instrument which operates with microwaves, has a radiation characteristic with a pronounced forward lobe and can be used to transmit and/or receive microwaves with a large frequency bandwidth. A housing section is designed as a waveguide short-circuited at one side and one end by a rear wall, and is virtually completely filled with an insert made of a dielectric. An exciter element, projects into the housing section and is connected to a microwave source. An antenna adjoins the housing section, for transmitting and/or receiving microwaves. A gap is arranged in the insert between the exciter element and the antenna. The gap forms a filter which is essentially non-transparent to higher modes of the waveguide.

Abstract: The invention concerns a motor vehicle door with a door body, an inner door panel, and a window lifter disposed in the door body, which lifter includes a guide rail, on which a carrier for a window pane is displaceably disposed. According to the invention, at least one functional element which is not part of the regulating mechanism of the window lifter is connected to both the guide rail and the door body.

Abstract: A device is provided for fastening an excitation element (2) in a metal waveguide (3) of an antenna (1) and for electrically connecting the same to a coaxial line (4) arranged outside the waveguide (3), and which is cost effective and in which low power losses occur. The device comprises a basic member (6), which seals an opening in the waveguide (3), has a bore (6.1), and a metal hollow cylinder (9), through which an inner conductor of the coaxial line (9) is guided, which hollow cylinder has a first section (9.1) plugged into the first bore (6.1), and which has a second section (9.2), over which an end region (10) of an outer conductor of the coaxial line (4) is pushed. A first end (2.1) of the excitation element (2) is fastened on one end (12) of the inner conductor.

Abstract: A sealing arrangement which includes a sealing ring with a support ring extending substantially in the radial direction and is joined in the radial direction on one end to a first sealing element that lies in sealing contact with a first machine element nonrotatably with respect thereto and in a statically sealing manner, and is joined in the radial direction on another end to a second sealing element that is placed against a second machine element rotatably with respect thereto and in a dynamically sealing manner. The first and second sealing elements are each made of an elastomeric material, and the sealing ring has, in order to sense rotational movements of the first machine element about its axis, at least one auxiliary device that can move past a rotational speed sensor. The auxiliary device may be a multipole ring, rotatable together with the first machine element about its axis, that is made of a magnetizable material.

Abstract: A flexible supply line to connect media transporting underground supply lines includes a metal corrugated bellows, a connection member at each end of the metal bellows and a flexible wrap wrapped along the metal bellows and the connection members. The invention also includes a method for attaching the wrap to the metal bellows.

Abstract: An arrangement is provided for generating and transmitting microwaves, in particular for a filling level measuring device, which arrangement generates a microwave mode which has a radiation characteristic with a pronounced forward lobe and which arrangement can be used in a large frequency range. It comprises a microwave generator (1), an antenna (2) of circular cross section and a coaxial line (3), which leads from the microwave generator (1) to the antenna (2) and has an inner conductor (31) and an outer conductor (32), and has the feature that on a rear wall (21) of the antenna (2) there is arranged a transmitting wire (5), which runs in the interior of the antenna (2), the first end (51) of which is connected to the inner conductor (31) of the coaxial conductor (3), the second end (52) of which is connected to the rear wall (21) of the antenna (2) and which has a straight portion (53) and legs (54, 55) adjoining the latter.

Abstract: A method for manufacturing a sealing ring. A support ring is provided, and at least one pasty, magnetizable material is applied onto a side of said support ring. The material is then hardened. First and second elastomeric sealing elements are vulcanized to the support ring, such that the ring is covered by the elastomeric material of said first sealing element. The magnetizable material is then magnetized. The magnetizable material may be a paste with at least two homogeneously distributed magnetic materials. At least two magnetic materials may be applied in succession onto said support ring; in that method, the second magnetic material is not applied until after a step of hardening the first magnetic material. After said step of hardening, the support ring may be deformed and punched out.

Abstract: A sealing arrangement including a sealing ring with a support ring extending substantially in a radial direction. The support ring is joined in the radial direction to a first sealing element that lies in contact with and is nonrotatable with respect to a first machine element to form a static seal. The support ring is also joined in the radial direction to a second sealing element that is placed against a second machine element rotatably with respect to the second machine element to create a dynamic seal. The first and second sealing elements are each made of an elastomeric material, and at least one multipole ring that can move past a rotational speed sensor. The multipole ring is made of a pasty, hardenable, and magnetizable material that is arranged as a intermediate layer of film-like thinness on the side of the support ring facing the rotational speed sensor.

Abstract: A level measuring device using microwaves comprises an antenna for sending transmitted waves toward the surface of a material whose level is to be measured, and for the reception of echo waves resulting from reflection at the surface, and a receiving and evaluating circuit which derives from the echo waves received by the antenna an echo function representative of the echo amplitudes as a function of the distance and determines from the echo function the transit time of the microwaves from the antenna to the surface of the material and therefrom the distance of the surface of the material from the antenna.