A leakage-flux flaw detection device includes a plurality of leakage-flux flaw detectors provided at positions not in contact with a steel strip and arranged in a width direction of the steel strip, wherein the leakage-flux flaw detectors each include a rotating disk that faces a surface subjected to flaw detection of the steel strip and that rotates, and a plurality of defect detection heads installed at different positions in a circumferential direction on the rotating disk, that perform direct-current magnetization of the steel strip, and detect leakage flux leaking from a linear defect due to the direct-current magnetization, wherein at least one of the plurality of defect detection heads has an inclination angle different from inclination angles of other defect detection heads, the inclination angle being defined by a tangent line of a rotation trajectory and the magnetization direction at an installation position of the defect detection head.

A rope tester to ascertain the condition of a wire rope in advance without increasing workload, Including a magnetization detector having a magnetizer for generating a magnetic force, and a detector for detecting a change in magnetism produced in a wire rope magnetized by the magnetic force generated by the magnetizer; a digital camera, which is provided a predetermined distance away from the magnetization detector along the traveling direction of the wire rope, for imaging the wire rope; and a controller, which is connected to the magnetization detector and to the digital camera, for detecting the location of a defect in the wire rope based on a change in magnetism detected by the magnetization detector, and outputting a drive signal that actuates the digital camera at a timing at which the defect location arrives at the location at which the digital camera is installed.

An apparatus includes a pipe crawler (100). The pipe crawler (100) includes one or more drive wheels (308) capable of moving along and around a pipe, and one or more instruments coupled to the one or more drive wheels (308). An instrument includes one or more of a sensor instrument and a maintenance instrument. The pipe crawler (100) includes a retention mechanism (4) that retains the one or more drive wheels (308) against an outer surface of the pipe. The retention mechanism (104) provides adjustable positions for the one or more drive wheels (308) for disposing the one or more drive wheels (308) against the outer surface of the pipe. The apparatus includes a controller (302) that communicates with the one or more drive wheels (308) to move the one or more drive wheels (308) on the outer surface of the pipe, and that operates the one or more instruments.

An apparatus includes a pipe crawler (100). The pipe crawler (100) includes one or more drive wheels (308) capable of moving along and around a pipe, and one or more instruments coupled to the one or more drive wheels (308). An instrument includes one or more of a sensor instrument and a maintenance instrument. The pipe crawler (100) includes a retention mechanism (4) that retains the one or more drive wheels (308) against an outer surface of the pipe. The retention mechanism (104) provides adjustable positions for the one or more drive wheels (308) for disposing the one or more drive wheels (308) against the outer surface of the pipe. The apparatus includes a controller (302) that communicates with the one or more drive wheels (308) to move the one or more drive wheels (308) on the outer surface of the pipe, and that operates the one or more instruments.

The present invention relates to a big data-based battery inspection method. Specifically, the present invention is for providing a big data-based battery inspection method which applies information on a metal part of a battery measured by an eddy current sensor to a discrimination function so as to quickly inspect the state of the metal part.

The present invention relates to a wire rope diagnostic device that is capable of being fastened or unfastened by means of battery packs, and more specifically, to a wire rope diagnostic device for performing safety diagnosis of a wire rope used for a lifting device such as a crane, an elevator, a water gate, and the like in real time that is capable of being fixedly fastened by means of battery packs so that it can be simply installed and separated and allow the battery packs to be easily exchanged.

This wire rope inspection device is provided with an urging unit for urging a detection unit in a direction to approach a wire rope by an elastic force to an inspection position at which the detection unit is arranged at a time of an inspection operation for inspecting the wire rope and a drive unit for moving the detection unit in a direction away from the wire rope to a normal operation position at which the detection unit is arranged at a time of a normal operation.

This wire rope inspection device is provided with an urging unit for urging a detection unit in a direction to approach a wire rope by an elastic force to an inspection position at which the detection unit is arranged at a time of an inspection operation for inspecting the wire rope and a drive unit for moving the detection unit in a direction away from the wire rope to a normal operation position at which the detection unit is arranged at a time of a normal operation.

A device and procedures perform an inspection of steel wire ropes and steel chains. The device is formed from a minimum of two contactless housing segments that are positioned around a test specimen and are equidistant connected when open. The housing segments have an internal normal surface that is radial and center-oriented when closed. The housing segments also form a supporting housing for all of the other components, and being connected on one of its longitudinal sides as a minimum. The connection being realized by moving connecting pieces for defining the clearance, rotation axis and the opening angles of each of the housing segments and which have a suitable closing mechanism positioned on a freely definable pair of longitudinal sides of the housing segment for the purpose of locking when in a closed condition and in order to apply a required pressing force.

A device and procedures perform an inspection of steel wire ropes and steel chains. The device is formed from a minimum of two contactless housing segments that are positioned around a test specimen and are equidistant connected when open. The housing segments have an internal normal surface that is radial and center-oriented when closed. The housing segments also form a supporting housing for all of the other components, and being connected on one of its longitudinal sides as a minimum. The connection being realized by moving connecting pieces for defining the clearance, rotation axis and the opening angles of each of the housing segments and which have a suitable closing mechanism positioned on a freely definable pair of longitudinal sides of the housing segment for the purpose of locking when in a closed condition and in order to apply a required pressing force.