Abstract: The present invention relates to a guided wave radar level gauge for determining a filling level of a product contained in a tank, said guided wave radar level gauge i.a. comprising a probe comprising a plurality of elongate probe sections each being pivotably connected to an adjacent probe section by means of a joint, said joint allowing probe sections to pivot between an operating state where said probe sections are substantially aligned along a straight line, and a transporting state. The present invention also relates to a probe, and to a method for arranging a guided wave radar level gauge in a tank.

Abstract: The present invention relates to a guided wave radar level gauge for determining a filling level of a product contained in a tank, said guided wave radar level gauge i.a. comprising a probe comprising a plurality of elongate probe sections each being pivotably connected to an adjacent probe section by means of a joint, said joint allowing probe sections to pivot between an operating state where said probe sections are substantially aligned along a straight line, and a transporting state. The present invention also relates to a probe, and to a method for arranging a guided wave radar level gauge in a tank.

Abstract: A radar level gauge using electromagnetic waves for determining a filling level of a product in a tank, comprising a transceiver, processing circuitry, a signal propagating device and a tank feed through structure. The tank feed through structure includes a fixed tank connection arranged to be secured to the tank, a tank connection adaptor arranged in a through hole of the fixed tank connection, a coupling arrangement arranged in the through hole and resting against the tank connection adaptor, and a fastening member attached to the fixed tank connection and securing the coupling arrangement between the tank connection adaptor and the fastening member.

Abstract: A radar level gauge using comprising a transceiver, processing circuitry, a signal propagating device, and a wave guide arrangement connecting the transceiver with the signal propagation device. The wave guide arrangement includes a hollow wave guide, a first filling member made of a first dielectric material, which first filling member is arranged inside the hollow wave guide, and a second filling member made of a second dielectric material, which second filling member is arranged inside the hollow wave guide outside the first filling member with respect to the tank. The second filling member is fixed in the wave guide at least in a direction out from the tank, and is configured to withstand temperatures up to 250 degrees Celsius. During conditions of temperatures sufficiently high to soften the inner filling member, the outer filling member will thus serve to prevent the first filling member from being forced out of the wave guide.

Abstract: The present invention relates to a guided wave radar level gauge system for determining a filling level of a product contained in a tank. The level gauge system comprises a transceiver for transmitting and receiving electromagnetic signals, a probe extending into the tank and configured to guide the signals towards the surface and to guide reflected signals back to the transceiver, processing circuitry for determining the filing level based on the reflected signals, and a plurality of spacing elements arranged on the probe. Each spacing element comprises a shell structure having an ellipsoidal shape defining an ellipsoidal space, first and second shell openings at first and second locations of the shell, such that a passage through the shell openings defines a passage through the spherical space, wherein the probe extends through the passage, and a plurality of flow openings allowing fluid flow between the exterior and interior of the shell.

Abstract: A radar level gauge for determining a filling level of a product contained in a tank. The gauge has a sealing arrangement comprising a hollow housing, a conductor and a dielectric sleeve arranged inside the housing and surrounding the conductor. At least one gap is formed between the dielectric sleeve and an adjacent, electrically conducting surface, the gap having a first end which is open to an interior of the tank, so that in use, tank atmosphere may enter and condensate in the gap. The sealing arrangement further comprises an electrically conducting coating provided on a surface of the dielectric sleeve facing the gap, and in electrical contact with said adjacent, electrically conducting surface, so that an impedance between the electrically conducting coating and the adjacent electrically conducting surface is sufficiently low at an operating frequency of the gauge to reduce an influence of any medium present in the gap.

Abstract: A radar level gauge using comprising a transceiver, processing circuitry, a signal propagating device, and a wave guide arrangement connecting the transceiver with the signal propagation device. The wave guide arrangement includes a hollow wave guide, a first filling member made of a first dielectric material, which first filling member is arranged inside the hollow wave guide, and a second filling member made of a second dielectric material, which second filling member is arranged inside the hollow wave guide outside the first filling member with respect to the tank. The second filling member is fixed in the wave guide at least in a direction out from the tank, and is configured to withstand temperatures up to 250 degrees Celsius. During conditions of temperatures sufficiently high to soften the inner filling member, the outer filling member will thus serve to prevent the first filling member from being forced out of the wave guide.

Abstract: A radar level gauge using electromagnetic waves for determining a filling level of a product in a tank, comprising a transceiver, processing circuitry, a signal propagating device and a tank feed through structure. The tank feed through structure includes a fixed tank connection arranged to be secured to the tank, a tank connection adaptor arranged in a through hole of the fixed tank connection, a coupling arrangement arranged in the through hole and resting against the tank connection adaptor, and a fastening member attached to the fixed tank connection and securing the coupling arrangement between the tank connection adaptor and the fastening member.

Abstract: The present invention relates to a guided wave radar level gauge system for determining a filling level of a product contained in a tank. The level gauge system comprises a transceiver for transmitting and receiving electromagnetic signals, a probe extending into the tank and configured to guide the signals towards the surface and to guide reflected signals back to the transceiver, processing circuitry for determining the filing level based on the reflected signals, and a plurality of spacing elements arranged on the probe. Each spacing element comprises a shell structure having an ellipsoidal shape defining an ellipsoidal space, first and second shell openings at first and second locations of the shell, such that a passage through the shell openings defines a passage through the spherical space, wherein the probe extends through the passage, and a plurality of flow openings allowing fluid flow between the exterior and interior of the shell.

Abstract: A radar level gauge for determining a filling level of a product contained in a tank. The gauge has a sealing arrangement comprising a hollow housing, a conductor-; and a dielectric sleeve arranged inside the housing and surrounding the conductor. At least one gap is formed between the dielectric sleeve and an' adjacent, electrically conducting surface, the gap having a first end which is open to an interior of the tank, so that in use, tank atmosphere may enter and condensate in the gap. The sealing arrangement further comprises an electrically conducting coating provided on a surface of the dielectric sleeve facing the gap, and in electrical contact with said adjacent, electrically conducting surface, so that an impedance between the electrically conducting coating and the adjacent electrically conducting surface is sufficiently low at an operating frequency of the gauge to reduce an influence of any medium present in the gap.

Abstract: A radar level gauge system for measuring a filling level of a content contained in a tank is disclosed. The system comprises a transmitter and a probe, configured to guide transmitted microwave energy towards the content. Further, it comprises a coupling comprising a mechanical connection configured to mechanically connect the probe to the tank; an electric feed-through configured to electrically connect the probe to the transmitter; and a seal adapted to hermetically seal the electric feed-through, wherein the coupling is adapted to provide mechanical separation between said mechanical connection and said seal, and to permit at least some movement between the mechanical connection and the seal, thereby protecting the seal from forces acting on the probe.