31results about How to "Reduce external influence" patented technology

A method and apparatus for transmitting utility meter data from an underground meter pit. The device includes a radiating antenna that is positioned entirely above the top surface of the pit lid. The radiating antenna conductively contacts a portion of the transmitter supported on the pit lid by the antenna housing. The transmitter housing includes an isolation sleeve that physically contacts a portion of the radiating antenna to enhance the signal transfer from the transmitter to the radiating antenna.

A door handle device (1) for motor vehicles, having a handle body (5) and a cover (2) for the handle body, wherein the handle body (5) and the cover (2) form a handle for a user. An accommodating space for accommodating electronic components is formed between the handle body (5) and the cover (2). A capacitive proximity sensor (7a) is arranged in the accommodating space, wherein the proximity sensor has an active capacitive face, directed towards the cover (2), for detecting approaching movements. In order to detect approaching movements, the capacitive face is coupled to an evaluation circuit which detects changes in the capacitance of the capacitive face. A sealing means (10) composed of a closed-cell foam is arranged in the accommodating space, wherein the sealing means (10) has at least one continuous opening which is spaced apart from the edge of the sealing means. The sealing means (10) is arranged with a continuous opening above the active face of the proximity sensor (7a) and is compressed between the cover (2) and the handle body (5), with the result that at least one area above the active face of the proximity sensor is free of foam.

The invention belongs to the cable technology field and especially relates to a submarine high-voltage cable. The cable is formed by a conductive unit, a metal shielding layer, a water-resisting layer, an inner sheath, an armor layer, an outer sheath and an outer sheath protection layer which are successively arranged from inside to outside. The conductive unit is formed by a conductor, an insulating layer, an insulation shielding layer and a conductor protection layer. On any cross section, a center of a circle of the conductor is superposed with a center of a circle of the insulating layer. A diameter of the insulating layer is 1.5-5 times of a diameter of the conductor and a minimum value of an insulating layer thickness is 1.5mm. A filling rope group and a reinforced component group are alternatively distributed in an external portion of the inner sheath. The filling rope group and the reinforced component group are tightly contacted with the inner sheath. The material of the outer sheath protection layer is polyamide. The insulating layer is made of silane crosslinked polyethylene or a special material. The invention also provides a manufacturing method. The cable possesses advantages that a mechanical property redundancy amount is appropriate; resources can be saved; wear-resistant performance is good; water antiseepage performance and seawater prevention performance are possessed; a shielding property is good and a high voltage can be transmitted.

The invention discloses a crane base with a stable buffer structure, which includes a main body, a first support column and an anti-corrosion plate. The surface of the main body is provided with a fixed ring, and the surface of the fixed ring is sleeved with a detachable shell. The inside of the demolition shell is inlaid with a reserved hole, and the inside of the reserved hole is sleeved with bolts, the inside of the fixed ring is installed with a non-slip pad, and the bottom end of the first support column close to the main body is fixed with a fixed block, the present invention is provided with three sets of first support columns, through which the vibration force is effectively buffered, the base of the crane is always kept in a stable state, and the external influence received during construction is reduced. It can be quickly disassembled and assembled during use. By setting up hydraulic cylinders, buffer springs, rubber pads and telescopic springs, multiple buffers can effectively reduce the vibration of the crane base and improve the efficiency of construction operations.