Impedence Measurements TRIZ Cases

A computer system estimates steady state voltage using a fitted step response model to determine isolation resistance quickly.

Segmented control consoles reduce network congestion in urban underground monitoring while enabling intelligent risk prediction.

Controller determines ground resistance using DC reference and output voltages, eliminating live-wire isolation hazards during measurement.

A smart meter measures RMS voltage and current at two time points to calculate equivalent grid impedance using a computing device.

Dedicated scribe line monitor structures separate device impedance from parasitic resistance, improving measurement precision on semiconductor wafers.

A calibration arrangement series connects resistors to derive resistance values via voltage measurements.

A system calculates electrical network impedance using voltage and current measurements from monitoring units.

A power converter produces a defined low-frequency common-mode voltage to isolate fault currents from normal leakage signals.

Synchronizing measurement frequency with the mains and applying discrete Fourier transformation suppresses interference from capacitive leakage currents.

A bio-impedance measurement system estimates distal network parameters by calibrating and de-embedding parasitic effects from proximal two-wire readings.

Segmenting SCR and ground fault test loops into distinct AC half-waves enables rapid UL943B compliance without increasing device complexity.

Synchronized voltage and current measurements across multiple power line locations feed a circuit model to calculate real-time characteristic impedance parameters.

A method disconnects electric power sources from loads to measure insulation resistance between the source and reference potential.

A thin-film resistor integrates metal layers and vias for thermal equalization.

Alternating switch states enable precise insulation resistance calculation, detecting faults at arbitrary potentials in ungrounded systems.

Identification tags and monitoring devices measure impedance changes in grounding systems to locate missing copper components before theft occurs.

Direct complex ratio calculation preserves absolute phase information, improving measurement precision despite frequency deviations.

A measurement method determines contact resistance in transistor test devices using multiple structures with varying active layer widths.

A branch-selective insulation fault detection system uses subsystem-specific test signal generators and blocking devices for independent monitoring.

Separately updating Thevenin equivalent voltage and impedance reduces false alarms from inaccurate tracking, preventing premature instability detection.

Synchronized phasor measurement units filter invalid data to calculate resistance, reactance, and admittance, correcting errors from environmental variations.

Structured Gaussian white noise excitation accelerates impedance measurement by 6.8 times while maintaining accuracy below 2.2% deviation.

A mixed mode vector network analyzer system measures S-parameters and DC parameters of differential devices using independent reflectometers.

Synchronous phasor measurement updates short-circuit capacity calculations in real time.

A vehicle-mounted measuring device determines contact wire wear by analyzing electrical resistance and voltage drop data.

Signal injection unit injects off-nominal frequency signals into electric machine circuits for ground fault detection.

A dual-channel system applies distinct voltages through separate resistors to measure leakage currents and compute impedance values.

A detector measures ground fault current impedance to identify human contact.

Power generating components measure output current and voltage to determine electrical resistance between connection points in parallel arrays.

Multi-frequency impedance measurement determines inductive and capacitive component values for AC filter monitoring.

A Legendre sequence pulse signal determines insulation resistance in ungrounded electrical networks.

An active insulation monitoring device injects measurement signals into power supply systems to detect residual currents and determine total insulation resistance.

DC power generation circuit converts AC input to DC voltage, enabling accurate low impedance measurement while eliminating leakage current hazards.

Intelligent Electronic Device identifies fault sections using traveling wave arrival times, resolving accuracy issues caused by varying surge impedances.

A power line impedance measurement technique uses resonant rings to determine capacitive and inductive components.

Calculates metallic casing attenuation using magnetic field ratios at DC and AC modes, eliminating complex impedance measurements.

Five-terminal network extracts impedance parameters to quantify electrical noise transfer, reducing system malfunctions.

A digital signal processing system measures impedance components simultaneously to reduce inspection time while maintaining measurement precision.

Separately updating Thevenin equivalent voltage and impedance prevents false alarms from inaccurate tracking, thereby avoiding power blackouts.

Transformer coupling node injects excitation signals to measure load impedance regardless of power source type.

Dual-frequency current injection provides redundant fault detection to prevent non-detection in critical electrical networks.

A portable nodal impedance analyser uses an auto best curve-fit application to generate equivalent circuits and V-I traces.

A mixing unit combines electrical measurements from multiple test signals into a single mixed signal for processing.

Circuit arrangement locates insulation faults using a selection switch and detection devices to identify faulty branches.

A renewable energy impedance measurement system injects voltage disturbances to calculate device characteristics.

Powered device calculates cable resistance via voltage and current sensing to utilize excess power without additional data communication.

A probe estimates wall proximity by mapping local impedance from electrical field measurements.

An insulation detection circuit uses Y capacitors and sampling circuits to monitor voltage states in two-way on-board chargers.

An adaptive insulation fault location system dynamically adjusts test current parameters to detect faults in isolated power networks.

A fuel cell insulation resistance determination system uses a compensation term to correct for coolant conductivity changes during operation.