Resistance/Reactance/Impedence TRIZ Cases
- Capacitive Pressure Sensor for Probe Card Contact Load Control
Capacitive pressure sensors detect contact load to compensate for thermal expansion, preventing probe damage without preheating.
- RF Probe Coupler Wave Conversion and Phase Locking
A passive impedance tuner samples signals via a non-contact coupler to extract voltage and current data for real-time DUT analysis.
- Differential Readout for Capacitive Sensor Noise Reduction
A reference receiver electrode captures ambient noise signals to enable differential processing of primary sensor data.
- Insulated Parallel Waveguide for Spatial Dielectric Profiling
Segmented waveguides resolve spatial moisture profiles via time domain reflectometry, overcoming device complexity limits.
- Automated ESD Device Tester with RFID Identification
An automated tester resolves tedious manual resistance measurements by using RFID identification to configure settings and store data for consistent results.
- Carbon Nanomaterial Tamper Detection for Device Integrity
Switching carbon nanomaterial states alters operational output to detect tampering without adding complex electronic sensors.
- Wire Resistance Surface Anomaly Detection for Turbine Components
A detection apparatus uses a wire and sensor to measure electrical resistance changes across turbine component surfaces.
- Synthesized Current Sense Resistor for Wide Dynamic Range
A synthesized current sense resistor circuit scales resistance dynamically to maintain a constant voltage threshold across varying load currents.
- Power Distribution Network Resonance Mitigation via Adaptive Current Sequencing
Dynamic current stepping synchronizes with resonant frequency to minimize supply noise, enabling circuits to reach steady state faster without manual tuning.
- JTAG Terminal Discrimination via Voltage Measurement
A terminal discriminating apparatus measures pull-up and pull-down voltages to identify candidate JTAG pins on a system PCB.
- Pulse Measurement System for Semiconductor Resistance Devices
Oscilloscope measures pulse current and dynamic resistance without stressing the device, maintaining integrity.
- Attenuator Circuit for Capacitance Sensing Noise Saturation
An attenuator circuit splits input current to maintain a converter in its linear operation range.
- MRI System for Nondestructive On-Line Sample Testing
An MRI system detects substance properties through RF frequency-dependent signals generated by a tunable coil.
- Audio Jack Impedance Monitoring Circuitry for Plug Removal Detection
Monitoring unit tracks signal path impedance states to detect partial audio plug removal from host sockets.
- Metal Loss Measurement Using Reference Element Noise Filtering
A metal loss measurement method uses a reference element to calculate confidence measures that filter resistivity noise.
- Inductor Current Estimation in HEV Power Converters
Estimate inductor current using voltage measurements and open-loop observers without physical sensors.
- Narrowband Near-Field Probe Shunt Capacitance RLC Network
A near-field probe uses a parallel shunt capacitance to form an RLC network that transforms small loop resistance into higher values.
- RF Noise Reduction System Using Phase Inversion
A radio frequency noise reduction system uses a phase shifter and microcontroller to generate an inverted signal that cancels emissions from a second antenna.
- Inductive Sensor Radome Lightning Strike Detection
Inductive sensors detect lightning currents passing through arrester strips on aircraft radomes, enabling precise damage assessment and operational safety.
- Multi-Area Capacitive Presence Detection for Motor Vehicle Door Handles
Dual capacitors in each zone detect hand presence via recurrent charging cycles, resolving moisture interference and false triggers.
- PoE Cable Resistance Measurement via Short Circuit Module
A short circuit module in powered devices enables precise cable resistance measurement during the PoE detection phase.
- Dielectric Spectroscopy Assays for Ion Channel Ligand Screening
Dielectric spectroscopy measures membrane potential changes via impedance data fitting to screen ion channel modulators.
- Optical Coupler Input Module for Fault Detection in Safety Circuits
An input module uses optical couplers to isolate field sensor signals from processing circuits.
- Time Gated RF Transmission Measurement for Inaccessible Ports
Time gating isolates termination reflections from single-port measurements to determine transmission response when both ports remain inaccessible.
- Application Roller Resistance Detection in Image Forming Systems
Controller derives recording material resistance from roller voltage profiles, compensating for conductive rubber variation to ensure accurate detection.
- Lubrication Particle Sensor Using Autoregressive Resistance Modeling
Autoregressive resistance modeling reduces false alarms by adapting thresholds to spectral changes.
- Electrically Heated Catalyst Temperature Determination
A heating resistor measures component temperature via electrical resistance changes.
- Current Sensor Shunt Resistance Correction Circuit
A current sensor applies an alternating signal to a shunt resistor series circuit for precise resistance value calculation.
- Resistance Measurement Circuit With Integrated Capacitor Switching
A circuit arrangement uses a capacitor and switchable branches to measure resistance via discharge times.
- Finger Sensing Device Differential Measurement Circuitry
Differential pixel measurement circuitry generates interpixel difference signals for adjacent sensing pixels.
- Electrode Distance Control for Stable Silver Solution
Automatic motor positioning prevents electrical arcing and contamination while reducing manual labor costs.
- MEMS Test Structure Monitoring Sacrificial Layer Etching
Conductive test structures detect residual sacrificial layers in MEMS fabrication via electrical resistance measurements to prevent electric shorts.
- Open Offset Cancellation in Impedance Measurement
Arithmetic combination of multi-phase measurements eliminates open offset errors in modem-type auto-balancing bridge systems.
- Translated Wafer Stand-In Tester for Accurate Calibration
A translated wafer stand-in tester emulates production form factor and behavior to store and convey test data directly.
- Scalable Device Noise Parameter Determination
A measurement system detects noise power at input and output ports of a scalable device to extract four independent parameters.
- Capacitive Sensor Baseline Adjustment for Hallucinated Object Detection
Dual-mode baseline adjustment eliminates hallucinated objects while preserving real user input detection accuracy.
- Diagnostic Test Pattern Generation for Small Delay Defects
A diagnostic test pattern generation method identifies long paths passing through diagnosis suspects to activate small delay defects.
- Dielectric Measuring Device High-Pass Filter Noise Reduction
A dielectric measuring device uses a high-pass filter to suppress noise interference in the reception signal.
- Suspended Channel Plasma Wave Transistor Performance Evaluation
A method evaluates suspended channel plasma wave devices by mapping electron drift velocity against plasma wave velocity to determine operational performance.
- Defect Inspection Circuit for Flexible Display Substrates
A defect inspection circuit uses peripheral sensing wires to measure electrical resistance changes in display substrates.
- Fuel Cell State Detection via Impedance Segmentation
A fuel cell state detection device calculates ionomer resistance by subtracting measured high-frequency impedance from a supposed value.
- Eigen-vector Coil Sensitivity Map Estimation
Eigenvector approach constructs coil sensitivity maps from sliding block matrices to reduce computational burden.