A cable with a signal detection function includes an core, a second insulating layer, and a signal detection layer. The signal detection layer is for transmitting signal data. The cable further includes a second insulating layer, and plural signal detection layers provided for transmitting signal data. The signal detection layer and the cores are disposed inside the second insulating layer, and the signal detection layer is cladded with plural cores. If the first insulating layer in the signal detection layer is damaged, the signal detection layer will be electrically connected to the conductor assembly. The cable with the signal detection function can detect the abnormality of the core through the signal detection layer to facilitate maintaining and repair the cable.

A device has two machine parts that are movable relative to one another and are connected to each other by a supply line along which a sensor line is mounted for measuring torsion of the supply line. The sensor line is connected to a measurement unit which is configured in such a way that an electrical parameter of the sensor line is measured, the torsion being ascertained using the parameter.

A disconnection detecting system for detecting disconnection of any of a plurality of wires included in a cable is provided. The disconnection detecting system includes: a bending mechanism configured to periodically apply force to the cable so as to cause the cable to reciprocate between a first bending state to be bent in one direction of clockwise and counterclockwise directions and a second bending state to be bent in the other direction; and a measuring apparatus configured to measure a resistance value of the cable, which varies on a time series basis in accordance with the reciprocation of the bending mechanism, and extract a component of a bending frequency for reciprocating between the first and second bending states once from frequency components included in time-series variation in the resistance value of the cable. The disconnection is detected on a basis of amplitude of the component of the bending frequency.

A cable device includes a sheath member, a number of electrical cables provided within the sheath member, and an optical fiber sensing member provided within the sheath member. The optical fiber sensing member includes a ftmctionalized optical fiber based sensor device structured to exhibit a change in one or more optical properties in response to changes in a parameter of interest. Also, a method of sensing radiation includes introducing a source light into an optical fiber sensing member provided within a structure, wherein the optical fiber sensing member comprises a functionalized optical fiber based sensor device structured to exhibit a change in one or more optical properties in response to radiation, detecting sensing light generated in response to the source light, and determining a radiation level at a plurality of locations within the structure using the detected sensing light and a distributed sensing scheme.

A cable device includes a sheath member, a number of electrical cables provided within the sheath member, and an optical fiber sensing member provided within the sheath member. The optical fiber sensing member includes a ftmctionalized optical fiber based sensor device structured to exhibit a change in one or more optical properties in response to changes in a parameter of interest. Also, a method of sensing radiation includes introducing a source light into an optical fiber sensing member provided within a structure, wherein the optical fiber sensing member comprises a functionalized optical fiber based sensor device structured to exhibit a change in one or more optical properties in response to radiation, detecting sensing light generated in response to the source light, and determining a radiation level at a plurality of locations within the structure using the detected sensing light and a distributed sensing scheme.

A cable includes a longitudinal structural element including at least one of an electrical conductor and an optical conductor, and a strain sensor arranged within a bending neutral region of the cable and mechanically coupled with the longitudinal structural element. The strain sensor includes an optical fiber coated with at least one coating layer, a release layer surrounding the coating layer, and a protective layer surrounding the release layer. The release layer includes a material selected from a silicone polymer, a fluoropolymer mixture or an extruded polymer containing a slip agent.

The disclosure relates to a cable, which is adapted to extend in an initial configuration according to a predetermined initial state and in a deformed configuration to assume a deformed state compared with the initial state, wherein the cable has a sheath arrangement, which extends along a longitudinal axis of the cable at least in sections, wherein the sheath arrangement is adapted to change its impedance according to the initial or deformed configuration of the cable. The disclosure likewise relates to an arrangement comprising a cable and a measuring unit as well as a method for detecting a deformed configuration of a cable.

The disclosure relates to a cable, which is adapted to extend in an initial configuration according to a predetermined initial state and in a deformed configuration to assume a deformed state compared with the initial state, wherein the cable has a sheath arrangement, which extends along a longitudinal axis of the cable at least in sections, wherein the sheath arrangement is adapted to change its impedance according to the initial or deformed configuration of the cable. The disclosure likewise relates to an arrangement comprising a cable and a measuring unit as well as a method for detecting a deformed configuration of a cable.

A sensor line for detecting an external influence on a cable is described. The sensor line comprises: a capacitor, a first dielectric, which has a first compressibility and a first permittivity, and a second dielectric, which has a second compressibility and a second permittivity. The first compressibility is smaller than the second compressibility. The first permittivity differs from the second permittivity. The sensor line is configured so that at least the second dielectric is compressible or extensible in the event of a movement of the sensor line, so that a total permittivity, which is composed of the first permittivity and the second permittivity, is variable in the movement of the sensor line. Due to the change in total permittivity, a change in the capacitance of the capacitor can be produced, which is detectable, in order to detect the external influence on the cable.

The present disclosures relates to a leakage sensor cable comprising a first conductive wire and a second conductive wire; a first conductive coating layer formed around the first conductive wire; a second conductive coating layer formed around the second conductive wire; a first permeable shell formed around the first conductive coating layer to form a first sensor cord; a second permeable shell formed around the second conductive coating layer to form a second sensor cord; wherein the first sensor cord and the second sensor cord are arranged together along their lengths to form a leakage sensor cable; and wherein the permeable shell is impregnated with electrolyte particles. The leakage sensor can be combined with a resistance-meter connected to the leakage sensor cable to form a leakage sensor assembly.