Capacitance Measurements TRIZ Cases

A testing method applies an elevated frequency signal to sensor layer electrodes for mutual capacitance measurement.

A capacitance estimator processes voltage and current signals in the frequency domain to determine electrical parameters.

Segmenting self-capacitance measurements isolates noise from voltage sources, improving measurement accuracy in capacitive imaging devices.

Segmented movable electrode surfaces detect distinct capacitance changes during pressing strokes.

A capacitance touch panel adjusts intersection point accumulation numbers based on peripheral electrode measurements to enhance edge detection precision.

Integrated MEMS actuator circuit determines capacitance through amplifier output switching time, eliminating expensive off-chip test equipment.

A wireless communication module uses an antenna and distributed constant filter as a capacitance electrode to detect human body proximity.

A sensor interface circuit uses a chopper filter to attenuate interference signals before down-conversion.

Segmented fingered electrodes resolve overlapping particle events and improve measurement precision without increasing fluid flow complexity.

Ground element coupled to unscanned sensor drains noise signals to ground, reducing measurement rechecking and power consumption.

Variable angular position electrodes tap communication signals capacitively through cable sheaths without line interruption.

A circuit measures parasitic capacitance of resistive switching devices to determine memory layer thickness.

A piezoelectric oscillator measures voltage or current during free decay to determine physical characteristic values.

Synchronous demodulation rejects wide-band noise in analog front ends, reducing power consumption while maintaining measurement sensitivity.

Segmented sensors and universal signal processing resolve complexity trade-offs for flexible keyless entry operations.

Replacing subjective visual assessment, the system quantifies fluid imbalance via bioimpedance to diagnose preeclampsia and compartment syndrome.

A capacitive array sensor detects dielectric constant differences between air, oil, and water layers to measure floating fluid thickness.

Variable test resistor determines leakage current without creating dangerous ground faults, protecting personnel and equipment from electrical hazards.

A testing method calculates jitter value ratios to verify common electrode integrity in sensor layers.

A capacitive sensor array detects structural damage through varying element capacitances and positional arrangement.

Voltage buffers equalize unselected column potentials to prevent crosstalk, reducing component count while maintaining measurement precision.

A capacitance sensing method counts charge sharing cycles between a reference capacitor and a measured capacitor to detect electrostatic changes.

A capacitive sensor detects touch inputs by monitoring the rate of change of electrode capacitance rather than absolute values.

A capacitive sensor uses a stepped substrate to position electrode pads lower than the sensing surface.

A touch sensor uses a conductive layer and signal receiver to measure voltage differences between input terminals.

A parallel capacitor charging method determines electrical parameters by discharging capacitors from a common supply voltage.

Correlating heater impedance with sensor readings detects detachment, preventing overheating and power depletion.

A dual-differential sensing method processes signals from three sensors to cancel common mode noise in flexible displays.

A touch panel scan method detects coarse positions using partial driving and sensing lines to reduce power consumption.

Apertures in the capacitive sensor reduce ventilation obstruction and improve signal-to-noise ratio during air gap measurement.

A multi-frequency sensing system averages capacitance changes across multiple samplers to detect presence in furniture items.

Segmented components and a protective barrier detect moisture while terminating power to sensitive electronics.

A pressure sensor device uses two series-coupled capacitance elements driven by opposite-phase signals to detect potential fluctuations at a coupling point.

A capacitor bank controller measures pre and post connection impedance to calculate required VARs automatically.

Integrated shielding and segmented electrodes reduce external interference to improve phase distribution measurement accuracy in cryogenic two-phase flows.

Capacitance sensor array detects obscured features behind walls, compensating for surface thickness variations to maintain measurement accuracy.

A partially automated testing device uses capacitance measurements to assess medical electrodes and connecting cables without direct electrical contact.

Compensation buffers adjust parasitic capacitance across sense lines while current summer circuits calculate average values to resolve detection inaccuracies.