Speed Measurement Using Gyroscopic Effects TRIZ Cases

See how a locking gimbal uses relative displacement detection to automatically engage and lock

A gyro-based detector separates slope changes from road unevenness so virtual image correction stays accurate on inclined vehicle paths.

By combining trolley tilt and handle tilt angles, this case enables accurate traction-assisted trolley motion and steering on slopes.

Abstracted vibration parameters align resonant frequency and output differences so multiple vibrators deliver consistent effects.

Dual PLLs and demodulation feedback keep gyro oscillation modes matched and align the oscillation axis with the electrode axis for higher accuracy.

Feedback correction of drive and detection gain ratios aligns resonator axes to minimize zero-point bias in angular velocity sensing.

Correcting drive and detection gain ratios with feedback control reduces deviation angle and angle measurement errors in dual-mode gyro sensors.

Linear button travel is converted into rotational IMU attitude sensing to avoid potentiometer wear, dust intrusion, and unstable tool control.

Selective laser activation tunes vibrating-arm resonance while limiting backside mass change that causes vibration leakage over time.

Drive signals are adjusted across dual meter assemblies to keep total current below thresholds while maintaining vibratory sensor operation.

Negative-edge hysteresis and a programmable offset suppress false pulses and noise in gyroscope rate and quadrature demodulation.

Differential amplification and synchronous detection separate vibration leakage from sensor output, improving diagnosis without degrading measurement accuracy.

Removing degeneration resistors in a current-feedback instrumentation amplifier cuts noise and current draw for monolithic MEMS gyroscope readout.

A stepped supply scheme lets MEMS readout circuits cut external voltage while boosting the output amplifier to preserve dynamic range and noise performance.

Synchronized chopper precharge cuts op-amp 1/f noise during A/D sampling, improving sensor signal-to-noise ratio and digital accuracy.

A segmented quartz support substrate tunes beam stiffness and resonance to suppress unwanted vibration while preserving vibrator strength.

Separated base and support linked by a tuned beam set resonance below drive frequency, attenuating unnecessary vibration without losing strength.

A feedback calibration circuit injects a test-tone-based correction signal to cancel MEMS gyroscope offset from mismatched sense currents.

A feedback oscillator circuit stabilizes MEMS gyroscope drive amplitude without a monitor electrode, reducing circuit complexity and error sources.

Self-tuning near a critical oscillation point and global feedback help magnetic sensor arrays limit coupling losses and preserve high SNR.

Split balancing electrodes apply static offset and dynamic fine tuning to keep gyroscope modes frequency-matched despite resonator imperfections.

Dual frequency adjustment before and after transducer connection helps detection circuits avoid drive-signal interference during high-speed operation.

By calculating the Coriolis-to-drive vibration ratio, this gyro sensor avoids AGC feedback circuits while preserving accuracy and sensitivity.

Interpolated sensor data based on earlier samples cuts folding noise when MCU read requests arrive at irregular asynchronous timings.

Two-stage clock tuning before and after transducer connection avoids drive-frequency interference and preserves fast, accurate detection.

A calibrated all-pass filter maintains a 90° phase shift across input-frequency and RC drift while cutting circuit area and energy use.

A dual analogue-digital drive-mode oscillator keeps the MEMS proof mass oscillating while cutting standby power use.

A digital frequency sweep kick starts the MEMS proof mass, cutting gyroscope start-up time and power use before closed-loop tuning.

Differential synchronous sampling and filtering cut gyro sensor noise, aliasing, circuit scale, and power consumption.

An RC-based drive circuit replaces PLL control to maintain MEMS resonator amplitude with lower power use and shorter start-up time.

An orthogonal multimass layout expands transducer area and raises Coriolis gain to improve MEMS gyroscope detection sensitivity.

Symmetric mass blocks and decoupling members separate XYZ sense modes in a MEMS gyroscope to reduce orthogonal errors and improve stability.

Stored resonance data is rewritten to match actual device conditions, letting the actuator suppress vibration more accurately across installations.

Drive-loop gain tracking compensates magnet aging in inductive gyroscopes, correcting scale factor drift without a time-based clock.

A symmetric planar mass-and-lever layout cancels total angular momentum to cut noise, shock sensitivity, and Q-value loss in angular velocity sensing.

A lever-based MEMS gyroscope amplifies Coriolis motion while suppressing in-phase crosstalk and quadrature error for stable z-axis sensing.

A widening resonator sidewall shifts parasitic modes above the sensing range, improving gyroscope accuracy and stability under vibration.

MOCVD-grown c-axis AlN on cantilever sidewalls enables compact piezoelectric MEMS with in-plane actuation, less crosstalk, and higher functional density.

Mechanical amplifiers suppress in-phase mass motion and boost Coriolis sensing to improve MEMS angular rate sensor stability and sensitivity.

Frequency split and phase analysis let a rotation-rate sensor correct amplification drift and phase shift without extra hardware.

A swept self-test signal and digital demodulation let MEMS inertial sensors track resonance, Q-factor, and sensitivity despite drift.

Comparing redundant angular velocity signals with perpendicular acceleration data helps pinpoint which sensor element has failed.

Anti-phase drive masses and lever arms isolate proof masses from external acceleration, improving angular velocity sensing accuracy.

Interchangeable control circuits make pre- and post-switch offsets symmetric, suppressing temperature-driven bias drift in vibration gyros.

Symmetric shuttles and switchable drive-sense axes cancel quadrature and common-mode offset errors for stable MEMS rotation sensing.

Orthogonal mass blocks and shared capacitive electrodes decouple Y- and Z-axis sensing to improve precision while keeping the inertial sensor compact.

A horizontal gyroscope plus a vertical-axis gyroscope corrects detection-axis rotation errors for more accurate azimuth measurement.

Direct conductive joining on a bent flexible wiring board removes bonding wires, improving electrical connection reliability under vibration and impact.

An in-phase feedback path suppresses resonance components, letting differential detection circuits keep high sensitivity without output saturation.

Top and bottom cap electrodes plus insulated vertical pathways enable 3-axis resonant MEMS sensing with higher sensitivity and no wire bonding.

A reference clock measures inertial sensor output data rate to track drive-frequency shifts and improve sensitivity and offset compensation.

Thicker polycrystalline silicon spring couplings help a double-rotor yaw rate sensor resist three-axis rotational acceleration and reduce failure.

A single proof mass driven in two orthogonal modes at distinct frequencies enables simultaneous sensing of angular rates on two perpendicular axes.

A variable setpoint forcing loop combines FTR and WA behavior to avoid lock-in and extend gyroscope dynamic range with continuous output.

A hybrid light path fiber optic gyroscope uses single-mode and polarization-maintaining fibers to reduce polarization crosstalk.

M-shape three-mirror hollow core fiber resonator cancels polarization error induced bias by using symmetric optical paths and identical mirror reflectivity.

A single actuator drives multiple masses in an extension mode to detect Coriolis forces for angular rate sensing.