327 results about "Shielded cable" patented technology

The utility model relates to the technical field of acceleration sensors, in particular to a piezoelectric acceleration sensor, which comprises a shell, a mounting cavity is arranged in the shell, a shielding shell is fixedly connected in the mounting cavity, a crystal base is fixedly connected at the bottom end in the shielding shell, a PCB (printed circuit board) is arranged at the upper part in the shielding shell, and the crystal base is fixedly connected with the crystal base. An external force is applied along the polarization direction of the ceramic wafer to deform the ceramic wafer, the inside of the ceramic wafer is polarized, charges with opposite polarities appear on the two stressed end faces, and the ceramic wafer is recovered to an initial state if the external force is removed, so that mechanical energy is converted into electric energy by utilizing the direct piezoelectric effect of the ceramic wafer, and then the electric energy is subjected to signal processing; the sensor outputs 100mv / g alternating current voltage, so that vibration acceleration signals are measured, triangular shearing is adopted by a measuring element, a two-core shielding cable is adopted by a cable, and the sensor is small in size, light in weight and high in applicability.

The invention discloses an anti-interference resistance detection circuit board and system based on four-wire system measurement, and relates to the technical field of industrial automatic detection. Aiming at the problems of low measurement precision, weak interference resistance and limited channel expansion of a traditional two-wire system, a current loop and a voltage sampling loop which are independently and electrically isolated are adopted, and a lead resistance error is eliminated through Kelvin connection; an EMI filter, a photoelectric coupler and a double-layer shielding cable are integrated, so that the influence of electromagnetic interference and a ground loop is inhibited; a single circuit board supports the parallel connection of at least two measuring units, realizes the cascade connection of multiple boards by combining an EtherCAT bus, and supports 384 channels at most. The measuring error is smaller than or equal to + / -0.1%, the single-channel detection time is smaller than or equal to 10 ms, the requirements of high-density and high-beat scenes such as perovskite photovoltaic glass are met, the method is suitable for 100-100 Momega wide-range resistance measurement, the signal transmission error rate in the industrial strong electromagnetic environment is extremely low, and the detection precision and the system reliability are remarkably improved.

The invention relates to the technical field of cables, and discloses a power shielding cable stranding device for a top drive of an oil platform and a production process, the power shielding cable stranding device comprises a supporting assembly, the upper part of the supporting assembly is provided with a wire feeding assembly, a stranding assembly, a guide assembly and a traction assembly, and the wire feeding assembly is located at the side part of the upper part of the supporting assembly; the stranding assembly, the guiding assembly and the traction assembly are transversely arranged on the upper portion of the supporting assembly along the supporting assembly, the supporting assembly comprises a bottom plate, and a first driving motor is installed on the upper portion of the bottom plate. By arranging an adjusting plate, the problem that a stranded wire is locally bent due to improper storage and carrying or material rigidity difference can be solved. Precise correction is achieved by sensing local deformation of the stranded wire and applying extrusion and drawing force, the situation that the cross section structure of the cable is not uniform due to deflection of a bent part after stranding is avoided, the structural strength of the cable is guaranteed, electric energy loss is reduced, the power transmission efficiency is improved, and the structural stability and transmission performance of the stranded cable are guaranteed.

An apparatus for cutting a previously flared shield conductor of a shielded electrical cable includes a two-piece clamping die having an aperture in which the shielded electrical cable is secured and a cutting surface. The clamping die is opened and closed around the shielded electrical cable. The apparatus further includes a cutting tube configured to be pressed against the cutting surface while the flared shield conductor is between the cutting tube and the cutting surface, thereby cutting a portion of a free end of the flared shield conductor. Alternatively, the apparatus may include a die comprising a cutting surface and an aperture in which the end of the shielded electrical cable is received. The cutting tube has two parts that are closed about the shielded electrical cable and pressed against the cutting surface while the flared shield conductor is disposed between the cutting tube and the cutting surface.

The invention relates to the technical field of shielding type cables, in particular to a shielding type data transmission cable and a preparation method thereof, and the method comprises the steps: drawing a wire core through a wire drawing machine, carrying out the extrusion molding of an insulating material in a molten state, and wrapping the outer layer of the wire core, thereby obtaining an insulated wire core; the method comprises the following steps of: gathering a plurality of insulated wire cores to form a wire harness, twisting and forming the plurality of wire harnesses to obtain a cable core, acquiring stress data of each wire harness and the cable core, calculating an order change interference degree of each stress data in a stress sequence, acquiring a sudden deviation degree of each stress data in the stress sequence, extracting stress abnormal data, and correcting each stress abnormal data. And obtaining the pointing degree of each pointing wire harness and the folding degree of the cable core, and adjusting the wrapping tape tension of a wrapping machine in the preparation process of the shielding type data transmission cable through the deviation between the pointing degree and the folding degree, thereby completing the preparation of the shielding type data transmission cable. According to the invention, the accuracy of adjusting and compensating the belting tension can be improved.

An aspect of the present disclosure is directed to a connector. The connector is suited to connectorizing exactly two conductors. The connector includes a forward connector body, a rear connector body, a metal frame and exactly two electrical contacts. The rear connector body interfaces with the forward connector body. Further, the metal frame, which includes a shielding interface, surrounds at least a portion of both the forward and rear connector bodies. The electrical contacts extend from the rear connector body into the forward connector body. A first of the electrical contacts is electrically coupled to a first conductor of a shielded cable and the second of the electrical contacts is electrically coupled to a second conductor of the shielded cable. The shield interface of the metal frame is electrically coupled to the shield of the shielded cable.

The invention discloses a broadband electromagnetic radiation interference characteristic modeling method for a shielding cable network. The method comprises the following steps: 1) obtaining a scattering parameter matrix of a shielding connector and a transmission parameter matrix of a bent shielding cable; 2) constructing an equivalent N port model of the shielding connector by using the scattering parameter matrix, and deducing a transmission parameter matrix of the shielding connector; 3) establishing a multi-conductor transmission line equation reflecting the distribution of interference current on the shielding cable by using the shielding cable transfer impedance; 4) cascading the transmission parameter matrixes of all the bent shielding cables and the shielding connectors to obtain an overall transmission parameter matrix of the shielding cable network; and 5) solving the multi-conductor transmission line equation in combination with the boundary constraint condition to obtain the common-mode interference current of the shielding layer of the shielding cable, and calculating the electric field radiation of the shielding cable network through the dipole array theory. The method is suitable for uniform and non-uniform shielding cables and shielding cable networks of single-core and multi-core wire harness shielding wire types, and has good universality.

The invention discloses a no-load state monitoring method and system for an aircraft power supply system, and relates to the technical field of electrical parameter measurement and aircraft power supply system monitoring. Initializing a monitoring system, calibrating a voltage sensor, a current sensor, a frequency sensor and an impedance sensor, setting a no-load state judgment threshold system, and importing historical no-load data as a comparison reference; no-load voltage, current, frequency and impedance signals are synchronously acquired through sampling frequency of the sensor group, and the signals are transmitted to the data processing unit through the shielding cable; median filtering and low-pass filtering are adopted to remove noise interference, normalization processing is carried out on the signals, and basic electrical parameters are calculated; calculating core characteristic values of the voltage stability, the frequency fluctuation coefficient, the impedance stability and the harmonic distortion rate; comparing the characteristic value with a preset threshold value, judging whether the state is normal or not by combining historical data, and identifying an abnormal type; and outputting a judgment result in real time, and starting acousto-optic early warning in case of abnormality. Abnormal traceability and trend prediction are realized, and safe and stable operation of an aircraft power supply system is guaranteed.

The invention discloses an electromagnetic shielding cable for a radio altimeter and a preparation method thereof, and relates to the technical field of cables. The preparation method comprises the following steps: treating ethylene-tetrafluoroethylene copolymer particles, a mixed compatilizer, a chemical foaming agent and a nano nucleating agent by using mixed gas low-temperature plasma containing acrylic acid, performing melt blending by using a double-screw extruder, injecting supercritical carbon dioxide, and performing slow cooling and shock cooling to obtain a three-dimensional porous matrix containing micro-nano cells; the preparation method comprises the following steps: synthesizing ferroferric oxide particles by a solvothermal method, coating a silicon dioxide dielectric layer, and then chemically silvering to prepare ternary core-shell composite particles; modifying the particles with aminopropyltriethoxysilane and a block copolymer to obtain modified composite particles; melting, mixing and granulating the porous matrix and the modified composite particles to obtain the electromagnetic shielding composite material. And performing extrusion molding on a conductor to form an insulation shielding layer, thereby obtaining the cable. The cable has an excellent electromagnetic shielding effect.

The utility model relates to the technical field of photovoltaic junction boxes, in particular to a self-cleaning arc-proof photovoltaic junction box circuit structure, which comprises an arc detection module, an energy conversion module, a control module, a self-cleaning execution module and a communication module. The arc detection module monitors an arc signal in the junction box in real time and generates a trigger signal, the energy conversion module converts arc energy into direct current and stores the direct current, and the control module monitors the voltage of the capacitor bank and generates an energy release instruction or a restart charging instruction when the voltage reaches a threshold value. The self-cleaning execution module generates shock waves through high-voltage pulses to remove accumulated dust, and the communication module is responsible for uploading data to an external monitoring system. And arc protection is realized by using the shielding cable and the filter circuit. According to the scheme, closed-loop control of energy recovery and self-cleaning is realized, self-cleaning is carried out by utilizing recovered arc energy, the energy utilization efficiency is improved, the safety and self-maintenance capability of the junction box are remarkably improved, the manual intervention frequency is reduced, and the junction box conforms to the green and energy-saving trend.

The invention relates to the technical field of cables, in particular to a torsion-resistant shielding cable and a manufacturing method thereof.The torsion-resistant shielding cable comprises a cable core, a filling layer, a wrapping shielding layer, an isolating layer, a braided shielding layer and an outer sheath, the braided shielding layer is coated with a bonding layer capable of filling the gap between the first braided unit and the second braided unit, under the action of the bonding layer, the broken monofilament is still attached to the adjacent monofilament, the broken position of the monofilament cannot tilt, and a cable sheath is prevented from being punctured by friction. The braided shielding layer is formed by braiding copper wires and graphene composite fibers, and the graphene composite fibers can enable the braided shielding layer to form a heat conduction channel which diffuses heat in the axial direction of the cable, so that the heat at the torsion part of the cable is diffused to the two ends of the cable, a cooling effect is achieved, and the fracture probability of the copper wires is reduced. And the torsion resistance of the cable can be improved.

A paddle card includes a printed circuit board (PCB), a shielded cable, and an electromagnetic interference (EM) shield. The PCB includes a first metal layer on a top surface of the PCB, a second metal layer within the PCB, and a cavity in the top surface of the PC. The cavity exposes the second metal layer. The first metal layer includes a first ground pad. The second metal layer includes a signal pad located within the cavity. The shielded cable includes a signal conductor coupled to the first signal pad. The EMI shield is coupled to the ground pad and covers the cavity.

The invention relates to the field of high polymer materials, and particularly discloses a power shielding cable insulation protection layer material for a top drive and a preparation method of the power shielding cable insulation protection layer material. The insulating protective layer material comprises the following raw materials in parts by weight: 100 parts of polyether type thermoplastic polyurethane elastomer; 12 to 15 parts of an ethylene-vinyl acetate copolymer; 5-8 parts of a compatilizer; 2-4 parts of an antioxidant; 0.3 to 0.7 part of a lubricant; 14 parts of a halogen-free flame retardant; 1-2 parts of an anti-hydrolysis agent; 4 to 6 parts of basalt fiber; and 6-9 parts of a filler. The preparation method comprises the following steps: preparing the raw materials according to the ratio, and pretreating the raw materials; the raw materials are mixed, extruded and granulated to obtain the insulating protective layer material. The insulating protective layer material has the advantage of being excellent in low temperature resistance.

The invention discloses an elastic composite shielding cable for a ship and a preparation process thereof, and aims to solve the problems of poor environmental adaptability, low shielding effectiveness, insufficient elasticity and unstable process of an existing ship cable. The cable sequentially comprises a conductor layer, an insulating layer, a composite shielding layer and a sheath layer from inside to outside, wherein the conductor layer is formed by twisting a plurality of strands of superfine tinned oxygen-free annealed copper wires, and two 1500D aromatic polyamide fiber elastic cores are arranged in the center of the conductor layer; the insulating layer is made of ethylene propylene rubber or thermoplastic elastomer, and the dielectric constant is not more than 3.0; the composite shielding layer is of a double-layer structure of aluminum-plastic composite tape wrapping and tinned copper wire weaving, and the shielding effectiveness of the X wave band is larger than or equal to 30 dB. The sheath layer is of a chloroprene rubber or polyurethane double-layer structure, tests such as C5-M-grade salt mist are carried out, the preparation process comprises the steps of conductor twisting, insulation extrusion, composite shielding forming and the like, various parameters are accurately controlled, the bending radius of the cable is smaller than or equal to 6D, and the cable is stable in performance after being repeatedly bent for 1000 times, low in smoke, halogen-free, flame-retardant, adaptive to severe environments of ships, stable in process and high in reliability. And reliable operation of ship equipment can be ensured.

The invention provides a shielding cable and application thereof, the shielding cable comprises an insulation wire group and a composite shielding layer wrapping the insulation wire group, the composite shielding layer comprises a conductive metal belt layer and an elastic conductive composite material layer wrapping the conductive metal belt layer through a hot pressing composite technology, a nanoscale conductive layer is arranged on the surface of the conductive metal belt layer; the elastic conductive composite material layer comprises a polymer matrix and a nano conductive material dispersed in the polymer matrix; through collaborative design of the conductive metal belt layer and the elastic conductive composite material layer, high-frequency shielding performance breakthrough is realized, SE attenuation rate after damp-heat aging is reduced, mechanical reliability is improved, conductivity, shielding performance, mechanical strength and environmental adaptability of the cable are comprehensively improved, the service life of the cable is prolonged, and the service life of the cable is prolonged. And the maintenance cost is reduced.

The invention discloses an intelligent security and protection system based on Internet of Things, which comprises an intelligent comprehensive wiring subsystem, an intelligent security and protection terminal group, an intelligent central management system and an emergency guarantee module, and is characterized in that the intelligent comprehensive wiring subsystem comprises a transmission link and a distributed sensing line, the transmission link is used for two-way transmission of security and protection data, and the distributed sensing line is used for sensing the security and protection data; the distributed sensing circuit is used for monitoring a vibration signal in the weak current pipeline; the intelligent security terminal group comprises an edge computing device and a multi-mode identification device, the edge computing device is used for processing sensing data in real time, and the multi-mode identification device is used for collecting biological characteristics and environment information. Physical parameters such as cable vibration, plugging strength, temperature and humidity are monitored in real time, millimeter-level fault positioning and second-level early warning are achieved, a traditional manual inspection mode is abandoned, and a double-link redundancy design is combined with an electromagnetic pulse protection module and shielding cable common bridge deployment.

The invention discloses a joint active noise reduction device and an active noise reduction method, and relates to the technical field of active noise reduction, the joint active noise reduction device comprises a joint shell part, and the joint shell part is fixedly provided with a vibration monitoring module through strong glue or a strong magnetic block; a feedback adjusting module, an information processing and analyzing module and an active noise reduction executing module are arranged on a shell of the joint, and the output end of the vibration monitoring module and the output end of the feedback adjusting module are electrically connected with the input end of the information processing and analyzing module through shielding cables. The output end of the information processing and analysis module is electrically connected with the input end of the active noise reduction execution module through a shielding cable, the device is provided with the active noise reduction execution module and the vibration monitoring module to intervene vibration and noise of the joint, noise generation can be reduced from the source, and compared with a traditional passive noise reduction method, the noise reduction effect is remarkably improved.

The invention relates to the technical field of aero-engine high-temperature and high-pressure testing, and particularly discloses a double-working-condition high-temperature-resistant total temperature sensing part which is suitable for a cooling-free working condition and a cooling working condition and comprises a shell, a lead device, a mounting base and a supporting framework. The shell comprises a front test piece and a rear protective sleeve which are formed by integrally weaving a ceramic matrix composite material; the windward side of the front test piece is semi-cylindrical, a temperature taking cavity is formed in the front test piece, an air leakage hole is formed in the outer wall, and a thermocouple is mounted in the temperature taking cavity; the lead device comprises a ceramic tube, a lead tube and a shielding cable accessory; the front test piece and the rear protective sleeve are connected by the support framework through a stepped combined groove, and a bent water cooling pipeline is formed in the support framework; and a cavity between the supporting framework and the front test piece is filled and sealed by high-temperature cement. According to the invention, short-time high-temperature measurement can be realized under a non-cooling condition, and long-time stable total temperature acquisition capability can be obtained under a cooling condition, so that structural reliability and temperature measurement precision in an extreme gas environment are both considered.

The invention discloses a shielded cable electricity testing method based on ground loop impedance potential lifting, and relates to the technical field of measurement. The electroscope comprises an electricity testing step, an induction electrode on the cambered surface of the electroscope is used for obtaining induced electricity, a broadband direct sampling framework is formed on the physical level, and broadband direct sampling of millivolt-level power frequency displacement current characteristics is achieved. Based on a variational mode decomposition-Duffing oscillator fusion weak signal extraction algorithm, a variational mode decomposition algorithm is utilized to adaptively strip broadband noise and higher harmonics, a reconstructed signal is subjected to scale normalization and then introduced into a critical chaotic state Duffing oscillator algorithm, phase transition of a phase track from a chaotic attractor to a large-scale limit cycle is monitored, and a weak signal is extracted. A non-linear dynamic weak signal extraction algorithm is formed on the algorithm level, and weak power frequency features masked by strong noise are accurately recognized; a broadband direct acquisition framework and a weak signal extraction algorithm form a dual detection framework, and a quasi-induction electric signal is detected and judged in the live part verification process of the shielded cable.

This utility model relates to the field of novel power battery pack technology, specifically to a wireless display system for power batteries. It includes a power battery pack, a housing, and a display screen. The power battery pack contains a power distribution unit for collecting battery status data. The housing has a built-in wireless module that connects to the power distribution unit via a wiring harness to achieve wireless data transmission. The display screen communicates wirelessly with the wireless module and has a built-in independent power supply unit to ensure that key parameters can still be displayed even when power is off. This utility model solves the problems of easy breakage and signal instability in traditional wired connections in dynamic scenarios through wireless transmission technology. Simultaneously, the use of partition isolation and shielded cable design effectively reduces electromagnetic interference and improves data acquisition accuracy. It is suitable for scenarios requiring real-time battery status monitoring, such as new energy vehicles and construction machinery, and can significantly improve the safety and stability of power battery monitoring.

The invention discloses a method and a system for predicting crosstalk suppression performance of a shielded cable, and belongs to the field of power electronic electromagnetic interference. The method comprises the following steps: acquiring a common-mode interference source and common-mode source impedance of the inverter power supply, establishing a common-mode electromagnetic interference equivalent circuit of the inverter power supply, and combining a cable bundle equivalent circuit to construct a common-mode crosstalk model of a shielding cable in the inverter power supply system; equivalently replacing the distribution parameters between the cables with common coupling impedance, and updating the common-mode crosstalk model based on the common coupling impedance to obtain a shielding cable crosstalk suppression performance prediction model based on the shielding structure and the electromagnetic parameters; and acquiring the common-mode interference current ip on the current power cable of the equivalent circuit, predicting the common-mode crosstalk current of the shielded cable through the prediction model in combination with a preset shielding structure and electromagnetic parameters, and evaluating the crosstalk suppression performance of the shielded cable. The influence of different parameters of the shielded cable on common-mode crosstalk is quantified, and the crosstalk suppression performance of the shielded cable is accurately predicted.

A plug contact (11) is connected to one end of a core wire of a flexible shielded cable (4). An insulating plug housing (12) holds the shielded cable (4) and the plug contact (11). A plug shell (13) is fixed to the plug housing (12) and holds the shielded cable (4) together with the plug housing (12). The plug housing (12) includes: a fitting part (50a) that is to be fitted to a receptacle connector and that holds the shielded cable (4) extending in the +Z direction normal to a main surface of a substrate on which the receptacle connector is mounted; and an extension part (50b) that is formed so as to be continuous with the end of the fitting part (50a) farther from the receptacle connector and that holds the shielded cable (4) extending in a second direction (a direction between the +Z direction and the +Y direction) intersecting the +Z direction.

The invention discloses a nanosecond square wave transient impedance tower grounding defect on-line detection method and system. The method comprises the steps that distributed potential sensors are arranged on the periphery of a tower grounding body, and multi-channel synchronous acquisition is established; injecting a rectangular pulse signal into the grounding down lead, and superposing a damping sine component subjected to frequency response compensation; synchronously acquiring voltage and current responses, calculating a transient impedance differential ratio, a total harmonic distortion rate and a wavelet packet energy entropy, and judging a defect type according to a preset threshold value and a weighted fusion criterion; constructing and solving a ground potential field model, and positioning a defect position; the system is composed of a nanosecond square wave generator, a distributed potential sensor, a data acquisition and synchronization module, a signal analysis module and a ground potential tomography module, and sensor signals are subjected to differential transmission through a twisted-pair shielding cable to suppress interference. According to the invention, rapid and accurate identification and positioning of the grounding defect of the tower under the non-power-off condition are realized, the identification rate is high, and the positioning precision is excellent.

This utility model discloses a high-performance shielded cable front connector, belonging to the technical field of cable front connectors. It includes a T-shaped lower housing with a T-shaped upper housing at its upper end. The lower housing has a through groove, and the upper housing has a front connector body on one side. This utility model, through a front connector connection and fixing mechanism, ensures a secure connection between the front connector body and the upper housing. The mechanism includes a connecting ear, a locking block, a fixing component, and a sealing ring. The locking block engages with a groove on the ear plate, and the fixing component utilizes a limiting plate and a spring to quickly fix and release the front connector body. This design not only improves installation and disassembly efficiency but also enhances the sealing performance of the front connector through the cooperation of the sealing ring and the sealing groove, preventing external moisture and dust from entering and ensuring the stability and reliability of signal transmission.

The application provides a high-voltage power distribution system cooperatively controlled with a traction system test bench, comprising: a high-voltage power distribution unit, a high-voltage cable interface device, a low-voltage power supply unit, a high-voltage power supply filter device, a high-voltage cable straight-through device, a host computer and the traction system test bench; the high-voltage power distribution unit and the low-voltage power supply unit are connected by a high-voltage shielded cable assembly for power supply by the traction system test bench; a high-voltage power supply filter device and a high-voltage cable straight-through device are arranged outside the high-voltage cable interface device; the high-voltage power distribution unit is connected with the high-voltage power supply filter device and the high-voltage cable straight-through device through the high-voltage shielded cable assembly for information transmission interaction; the host computer is electrically connected with the low-voltage power supply unit, and the low-voltage power supply unit comprises a PLC intelligent controller and a data acquisition module. The application aims to connect a converter power supply system and a load system, so that the converter simulates the working condition on the vehicle to perform electromagnetic compatibility test in a semi-electromagnetic wave darkroom.

Accessories of a medical device, such as a defibrillator, are described. The accessories reduce delays in treating or monitoring a patient by increasing the efficiency of using, and the ease of use of, the medical device. An adjustable kickstand is movable between a collapsed and extended position to recline the medical device. In the reclined position, a display of the medical device can be more easily viewed by the user. Storage bags can be coupled to the medical device to efficiently store accessories for use with the medical device. The stored accessories can be coupled to the medical device while the accessories are stored within the storage bags. A port guard can protect and shield a connection between a cable and a port of the medical device to prevent the cable (e.g., an ECG cable) from being disconnected from the port of the medical device.

The invention relates to a steel rolling heating furnace pressure detection system and a control method, and belongs to the technical field of steel rolling heating furnace energy saving in the metallurgical industry. According to the technical scheme, firstly, a furnace pressure detection hole is formed in the side wall of the soaking section of the heating furnace, the vertical height of the furnace pressure detection hole is equal to the height of the horizontal line on the side wall of the soaking section and the upper surface of a steel billet in the furnace, the distance between the horizontal direction and a steel outlet of the heating furnace ranges from 500 mm to 1500 mm, a pressure measuring pipe is installed and connected to a micro-pressure transmitter, and the micro-pressure transmitter is connected with a furnace pressure meter through a shielding cable; and then the furnace pressure is adjusted by adopting a method of combining the frequency of a heating furnace flue gas induced draft fan motor and the opening degree of a heating furnace flue gate, so that the pressure of a hearth is controlled to be 5-10 Pa. The device has the beneficial effects that the hearth pressure of the steel rolling heating furnace can be accurately controlled, steel billets at the discharging end of the heating furnace are kept to be surrounded by high-temperature furnace gas, the furnace pressure at the steel billet position at the discharging end is micro-positive pressure, and energy saving of the heating furnace is achieved.

Power electronic device (11) comprising a semiconductor switch (15) and a sensor module (1) which is in thermal contact with the semiconductor switch (15) and has at least one measuring transmitter (2), wherein the sensor module (1) has at least one interference suppression element (3) for reducing interference signals, wherein the sensor module (1) has an input contact (6) and an output contact (7), wherein the measuring transmitter (2) and the interference suppression element (3) are arranged in a parallel circuit (8), wherein the parallel circuit (8) is electrically connected on the one hand to the input contact (6) and on the other hand to the output contact (7), wherein the input contact (6) and the output contact (7) are each designed as an unshielded cable (9).

A shielded electrical cable (1) comprises an electrical cable (10) and a conductive nonwoven tape (20) wrapped around the electrical cable. The conductive nonwoven tape comprises a conductive nonwoven fabric (21) and an adhesive layer (22) located on a surface of the conductive nonwoven fabric and is wound with a winding pitch of t / 3 or more and t / 2 or less to form a wrapped section (L), where t is a width of the conductive nonwoven tape. The adhesive layer is located in a different position from the wrapped section, has an adhesive strength of 2.0 N / 19 mm or more, as measured by an adhesive strength test in accordance with JIS C 2107, a width of t / 10 or more, and a thickness of 0.01 mm or more and not greater than the thickness of the conductive nonwoven fabric.