Inductance Measurements TRIZ Cases

Measures flyback primary inductance from switch-on time and peak current to improve control accuracy without extra measurement hardware.

Computed clamp-switch timing from primary inductance, peak current, winding ratio, and output voltage avoids secondary-side sensing and cuts control cost.

Measures inductor inductance from discontinuous startup current waveforms to detect shorted turns early and protect the power converter.

An emulated current generator and comparator detect output inductance in a power converter without extra pins, enabling adaptive configuration.

An emulated current generator and comparator let a power converter detect output inductance and adapt without extra pins or hardware.

Peak current plus a ripple estimate yields average inductor current, enabling tighter boost converter regulation and lower battery stress.

Peak inductor current plus a ripple estimate yields average current control in boost converters, limiting source draw and stabilizing output voltage.

Peak current and ripple estimates are combined to identify true inductor inductance, improving voltage regulation and saturation detection.

Resonant frequency from the coil and buffer capacitor estimates air gap, enabling sensorless PWM force control for consistent haptic feedback.

Current injection through electric starter switching arms identifies motor resistance and inductance at standstill for better torque and thermal estimation.

Equivalent battery and fuse circuit models predict short-circuit current by battery voltage, improving protection design while reducing test cost and risk.

A shielded cable and electronics-side resonator capacitor suppress second resonance modes and RF pickup in remote inductive sensing.

Measured coil current and voltage reveal the real filter inductance profile, enabling adaptive inverter control with smaller nonlinear inductors.

Brake coil inductance is used to estimate air gap and friction lining wear, reducing manual checks while improving elevator brake safety.

Brake coil inductance is used to calculate air gap and track friction lining wear automatically, reducing manual checks and safety risk.

A remote processor estimates sensor and cable impedance to keep inductive proximity detection accurate in harsh environments without complex calibration.

Equivalent circuit fitting separates battery resistance from line inductance, enabling accurate internal resistance checks on production lines.

A PWM duty cycle tied to coil current and a dynamic trigger threshold compensates temperature-driven resistance changes in inductance measurement.

A switchable test path lets the secondary coil be checked without disassembly or added loops, avoiding signal distortion in conductive media.

Solenoid coil electrical-state sensing replaces two-state limit switches to detect railway door lock, unlock, and abnormal conditions.

A movable core and magnetic body let a passive stylus distinguish hover, contact, and pressure with fewer parts and less assembly variation.

This case measures battery internal resistance from 100 Hz to 10 kHz, accounting for line inductance to support defect screening.

Electromagnetic field simulator allocates incremental permeability to mesh elements for accurate inductance calculation.

A sensor unit with a coil detects inductance changes to determine the stacking direction of internal electrodes in multilayer capacitors.

Matches input impedance via adjustable terminating impedance to resolve amplitude-dependent measurement errors in inductive conductivity meters.

An inductive coil array detects resonant frequency shifts to identify objects, replacing cumbersome touchscreens with contactless gesture control.

Microcontroller drives parallel resonant circuit at natural frequency to eliminate cross-sensitivities and improve measurement accuracy.

A parameter estimation system applies voltage pulses through two phase paths to measure stator voltage and current for accurate motor control.

Placing the signal processor centrally within the coils resolves packaging constraints by enabling a concentric design that fits inside tight cavities.

An inductive sensor with a non-magnetic metal target detects user contact on vehicle door handles.

Embedding a magneto-conductive wire in a substrate trench eliminates alignment steps and step height issues during manufacturing.

A boost converter controller dynamically adjusts voltage by monitoring inductor current to determine real-time inductance values for precise slope compensation.

First-order RL circuit alternates excitation and zero-input responses to detect inductance changes in magnetizing coils.

Tokenizing substrate traces into graphs generates representation vectors to predict scattering parameters without full-wave simulation.

Dynamically adjusts switching frequency based on measured inductance changes to prevent high-side field-effect transistor damage from current saturation.

A power transmission apparatus oscillates alternating current at two distinct frequencies to measure resonator inductance values for precise positional adjustment.

Fast current pulses excite voltage responses to determine electrical impedance, resolving inductive and ohmic components that static methods miss.

Varying signal frequency to detect minimum input impedance in an inductive conductivity sensor, resolving analog circuit drift and tolerance issues.

A non-contact sensing module uses a coil printed circuit board with reference and sensing pattern coils on opposite surfaces.

A wearable therapeutic device uses inductive and capacitive elements to detect shape changes for health monitoring.

Controller calculates effective inductance from switching cycle parameters to compensate for parasitic effects at high frequencies.

A current sensor circuit integrates inductive element voltage to generate a proportional voltage analog.

A measurement circuit determines inductor value using output voltage and reference peak current signals.

A self-oscillation circuit detects object position through amplitude levels of oscillation output signals from a flat coil section.

Segmented resistance structure resolves excessive Q values beyond resonance, enabling precise noise countermeasure verification in high-frequency regions.

Detuning the LC oscillator frequency minimizes interference signal influence on eddy current sensors, ensuring stable electromagnetic compatibility.

A sensor uses a reference inductance and parallel resonant circuit to measure position variables.

Classifying cookware material composition through electrical parameter analysis prevents unintentional heating damage while maintaining device simplicity.

Dynamic impedance estimation selects measurement techniques based on load conditions to reduce coil resistance and minimize ringing in haptic transducers.

A detector measures parallel resistance to assess inductor condition using impulse voltage signals.

A test coil introduces additional impedance into an oscillating circuit to determine resonant parameters without galvanic connections.