Acceleration Measurement Using Interia Forces TRIZ Cases

Distinct frequency tones separate test responses from inertial signals, reducing parasitic effects and circuit area consumption.

A sensor apparatus processes detection signals to attenuate interference noise using stored drive frequencies.

Conductive through holes connect layered coils in a MEMS magnetometer mass without cross-line structures.

A bridge displacement estimation method combines strain gauge and accelerometer data to generate precise structural movement metrics.

Segmented proof masses and differential electrodes suppress vibration noise, achieving 40 dB disturbance rejection for accurate angular rate measurements.

Segmented MEMS beams with insulative isolation joints reduce shock damage and frit seal failures while maintaining electrical connectivity.

Inertial sensors detect involuntary hand tremors to authenticate users without intrusive actions, resolving the conflict between security and ease of operation.

Segmented feedback capacitance and passive common-mode control reduce current consumption while maintaining noise rejection for portable devices.

Segmented anchoring aligns sensing mass displacement with substrate deformation, minimizing thermal drift and offset errors in z-axis accelerometers.

Integrating a conductive film on the MEMS lid substrate enables single-chip detection of acceleration and magnetic variations, reducing package size.

Continuous magnetic fields enable parallel sensor calibration, eliminating sequential testing steps that increase cycle time.

Nested magnetic sensors replace mechanical mechanisms to detect small leaks and tampering, resolving precision versus complexity trade-offs.

Merged inertial sensor outputs high-accuracy third axis data to host devices without requiring interface specification changes.

A disposable impact indicator registers excessive force location and elapsed time using a rupturing barrier film.

Segmenting the sealed cavity allows independent gas pressures for resonant and acceleration sensors, resolving WLP integration constraints.

Dual MEMS piezoelectric transducers enable built-in self-testing via mechanical coupling and electrical signal comparison.

Fits magnetic field data to a circle or ellipse using 2D calibration techniques, resolving heading errors in constrained motion scenarios.

Metal-polymer composites fill concave cavities to raise mass density, reducing Brownian noise and improving signal-to-noise ratio.

A physical quantity sensor uses a variable reference voltage in its AGC circuit to control the driving signal level.

Multi-species atomic interferometry compensates for phase shift intervals to improve acceleration measurement reliability.

Factory calibration stores correction factors in internal memory, eliminating external equipment needs for wide-range accuracy.

A physical quantity detection circuit reduces noise through average processing of digital data values.

A mobile device captures machine sensor data and transmits dynamic characteristics to an external platform.

Graphene coatings on insulating proof masses and flexures dissipate static charges, eliminating attraction forces that degrade accelerometer output accuracy.

Protrusion-integrated detection electrodes trigger self-diagnostic circuits upon movable body contact, resolving reliability and complexity trade-offs.

A crystalline layer accommodated in a substrate recess enhances resistance to crack formation, enabling hermetic sealing without thermal stress damage.

A micromachined monolithic sensor uses a single proof-mass and partitioned flexure to detect six degrees of freedom.

Delta-sigma modulation binarizes servo control signals to reduce spectral density of quantization errors near high-order resonance frequencies.

A piezoresistive acceleration sensor uses tapered beams to focus stress locally on sensing elements.

Control unit evaluates motion parameters to trigger emergency transmissions before impact, preventing late activation during aircraft emergencies.

Plasma-enhanced silicon carbide deposition enables lateral MEMS fabrication below 350°C, preserving underlying CMOS electronics from thermal damage.

Tri-axial accelerometers guide hip instruments to precise locations, reducing equipment complexity while improving positioning accuracy.

A wearable hearing aid uses MEMS accelerometers and magnetometers to detect head rotation.

Underfill material shifts circuit housing resonance frequency away from sensor operational range.

A pivotable transmission arm amplifies strain in an intrinsic optical fiber by converting transducer motion into measurable deformation.

Distributed tension sensor nodes monitor net threads to locate holes, preventing fish escapes and structural failures.

Comparing gyro sensor output signals eliminates reliance on estimated values, resolving reliability issues in real-time monitoring.

A mechanical apparatus measures swing mass moment and center of mass using gravitational torque and a calibrated elastic counter force.

Segmented proof mass structures coupled by springs create closed excitation and detection modes for precise rotation sensing.

Multi-axis accelerometers measure acceleration vectors to determine node spatial orientation within a bussed network topology.

Amorphous carbon serves as a polishing stop layer, enabling precise exposure of the sacrificial material and reducing production time.

A tapered semiconductor opening expands the diaphragm area within a fixed chip footprint.

Integrating the back cavity into the substrate reduces packaging complexity and cost while maintaining acoustic sensing reliability.

Single-point substrate connection and segmented mass design suppress interference signals while reducing sensitivity to substrate bending.

Independent accelerometer records shock events during outages, ensuring continuous tamper detection without external power dependency.

A resonant biaxial accelerometer structure couples elastic elements to an inertial mass for multi-axis detection.