Electric Current Microsensor
A sensor capable of being clipped onto an electric wire can provide real-time monitoring of the electrical current flowing through it.
Due to its passive nature, the sensor does not require power wiring; only the data acquisition device needs to be powered. RVmagnetics' MicroWire technology enables efficient monitoring of power wires and cords for various applications.
The MicroWire sensor serves as a critical safety component in applications such as building supply wires, car wiring looms, and electronic conductors. RVmagnetics' technology can differentiate between direct current (DC) and alternating current (AC), detect polarity, and measure AC frequency.
Monitoring power cord insulation with MicroWire allows for the detection of current fluctuations within an electrical circuit, making it possible to determine whether a specific section is active. Additionally, the sensor’s magnetic properties can be adjusted to provide information about power cord overheating.
While the signal from the MicroWire is collected via magnetic field from a distance up to a few centimeters by the data acquisition unit, the data from the MicroWire can be sent via cable or wirelessly to the cloud by wifi or Bluetooth, depending on the client’s requirements.
Therefore, the user can process the collected data in a safe environment far away from the system that could be installed in the “dangerous zone” close to power cords/contacts and flowing currents. The tailor-made system creates an opportunity for continuous 24/7 data monitoring or on-request measurement.
Precision Anywhere
Non-invasive current sensing with Seamless Integration & Real-Time Monitoring
Application Parameters
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Can be tuned to provide overheating detection in power cords.
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Provides a passive, maintenance-free solution for current sensing.
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Supports both direct current (DC) and alternating current (AC) monitoring.
Main advantages
With its micro-dimensions, the MicroWire can be incorporated into the insulation of the power cord, or even in spatially unavailable places. With electrical power comes also a danger of combustive environment, with its passive character and glass-coating the MicroWire can be used as a sparkless element informing about current’s physical quantities.
Measurement Principle
Electrical current flows through the power cord, generating a magnetic response in the attached MicroWire sensor. The sensor operates without direct contact with the conductor. The system detects the MicroWire’s magnetic response, processes it electronically, and displays it in real time on a tablet, computer, or oscilloscope as columns, numbers, or changing peaks.