Voltage/Current Isolation TRIZ Cases

A graphene microelectromechanical device detects electrical voltage through refractive index changes measured by optical interferometry.

Segmented insulating layers with varying fracture toughness prevent cracking in magnetic sensors, enhancing manufacturing accuracy and reliability.

Partial mold resin on an annular core enables precise positioning and reduces hysteresis while preventing dust entry during manufacturing.

Optical transmission eliminates DC drift in high-side FET measurements by replacing amplitude modulation with frequency modulation.

A capacitive voltage sensor embeds a hidden sensing electrode within an annular grounded assembly to enable precise voltage detection.

A MEMS field mill uses a dielectric element to amplify electric fields within the sensor.

A magnetic sensor device uses a field converter to orthogonalize input fields, blocking horizontal noise with a shield.

Removing the magnetic flux concentrating core eliminates eddy current heating, while non-magnetic spacers block thermal conduction from bus bars to the sensor.

A flexible sensor uses a side-fitting groove to mount on small targets without thinning the cable.

Segmenting the detection circuit with an intermediary buffer isolates low-cost components from high-voltage stress, enabling precise AC voltage measurement.

Vertical Hall elements provide monotonic voltage beyond saturation limits, enabling accurate overload detection without hysteresis errors.

A solid-state sensor uses optical charge conversion to detect electric fields via photoluminescence monitoring.

Segmented unit windings on a ring core reduce signal fluctuations caused by wire position, improving measurement precision.

Segmented magnetic field sensing elements subtract stray fields to improve current measurement accuracy without ferrite core complexity.

Replacing isolation transformers with Zener diodes and an optocoupler improves measurement accuracy while lowering device complexity.

A nulling current mechanism cancels common mode interference in test and measurement devices.

Automated scanning with a moving metal plate and time-variant magnetic field locates sensitive zones, reducing manual search time.

Applying a selected gate voltage tunes quantum capacitance in a 2D charge sensing layer, resolving the trade-off between sensitivity and dynamic range.

A data collection cover with sensing members and an analog-to-digital converter monitors relay switch positions.

A current sensor uses a test coil to inject a signal for verifying output accuracy without redundant hardware.

Segmented conductive and non-conductive shield plates minimize eddy current detection errors in high-frequency current sensors.

Package-integrated piezoelectric current sensing devices measure currents in buried traces without external components or additional layers.

A current sensor uses asymmetric magnetic shield plates to attenuate field intensity for high-accuracy large current detection.

Overlapping magnetic strip ends form an annular excitation core that prevents contact failures during opening and closing operations.

A mini current sensor uses a U-shaped structure and multiple Hall effect sensors to detect external magnetic noise for accurate measurement.

Multiple Rogowski coil sections mounted to a printed circuit board surface using conductive traces that retain and connect the coils.

Passive optical current sensors identify overhead versus cable faults to prevent unnecessary shutdowns and reduce maintenance costs.

Dielectric material between the coil and conductor reduces capacitance, while Faraday shields reject interference for precise sensing.

Segmented Rogowski coils with parallel filtering elements reject common-mode voltages while maintaining measurement accuracy above 10 kHz.

Stacked ferromagnetic sheets guide magnetic flux to Hall sensors, resolving remanence errors and improving measurement precision in high voltage relays.

A compact current measurement device uses a hollow magnetic shielding member to protect sensors from external interference.

Molded polymer sensor module reduces soldered connections and mechanical stress on current transformers near circuit breakers.

A transmitter generates a modulated carrier signal to bridge isolated power domains via galvanically coupled elements.

An electric field voltage measurement strap monitors arrester health without ground lead installation, preventing failure risks.

A power measurement system uses voltage and current differences between phases to determine production levels accurately.

A Rogowski coil sensor uses a dielectric layer to reduce capacitance between the conductor and windings for improved signal detection.

Cascaded opposing field windings compensate primary magnetic fields to eliminate switching delays and maintain constant resolution across wide measuring ranges.

Curved base geometry compensates for vibration-induced angular deviations, maintaining measurement precision in high-vibration environments.

A measuring module determines supply voltages using a correction matrix to compensate for potential differences between the measurement system and the network.

Magnetic coupling joins the cable loop ends to eliminate assembly play and prevent measurement drift during high current monitoring.

A pass-through device positions wires and detector indentations to enable non-contact voltage checks without opening electrical panels.

A current sensor uses a soft magnetic field shaping member to stabilize flux vectors entering the detection element.

Feedback loop corrects DC drift in integrator circuits to prevent infinite amplification at DC frequencies.

A hard bias layer suppresses magnetic hysteresis in the shield, improving output linearity and measurement accuracy.

Sliding average calculations in a Rogowski coil system reduce phase errors and circuit complexity while maintaining high measurement accuracy.

A planar coil current sensor uses stacked substrates and soft magnetic material to detect electrical currents accurately.

A cross-coupling element balances orthogonal polarization states in the optical path to stabilize sensor signals.

Nested tubular electrodes block external interference to enable precise voltage measurement without on-site calibration.

An elastic sleeve with flexible lips automatically centers electric current conductors, eliminating manual centering steps and reducing installation time.