Acceleration Measurement TRIZ Cases

Comb-finger electrodes in a MEMS sensor electrostatically displace the seismic mass, compensating zero-g offset errors without reducing sensitivity.

Wireless sensor device compares acceleration vectors to a calibration vector for orientation-independent fall detection.

Asymmetric mass distribution on lever arms increases maximum detectable acceleration while reducing offset errors caused by clipping.

A micromechanical deflection device uses vertical surface extensions to increase damping forces without enlarging the substrate footprint.

A sensor system modifies device sensitivity to measure output signal differences for internal calibration routines.

Phase demodulation extracts acceleration from sine and cosine signals while removing direct current components that degrade measurement precision.

Modulated drive signals detect in-phase offset errors in micromachined inertial sensors.

Differential magnet-sensor pairs detect eddy currents in conductive objects to measure speed and acceleration accurately.

Terminal device detects treadmill vibrations using an acceleration sensor to count exercise steps without external hardware.

Detect half-step frequency relationships in tri-axial accelerometer data to classify mobile device motion states.

An optomechanical gravimeter uses optical interferometry to measure test mass displacement, achieving a 10^-10 m s^2/Hz acceleration noise floor.

Wireless inertial sensors inside the ball measure kinematics to replace complex video systems, enabling accurate pitch analysis.

Segmented support suspends optical elements above the substrate to maintain constant coupling space despite mechanical deformation.