Inertial Transducer
Micro-electromechanical device that measures angular velocity by detecting the Coriolis force acting on a vibrating mass defines the component. Silicon micro-gyroscope technology integrates the mechanical structure and the readout electronics on a single chip. Sensors are found in stabilization systems for vehicles and industrial robots.
Coriolis Detection
Rotating the sensor while the internal mass is vibrating creates a secondary motion perpendicular to the primary axis. The electronics measure this tiny displacement to calculate the rate of turn. Maintaining a high quality factor in the resonator is essential for achieving high sensitivity.
Signal Processing
Converting the raw capacitance change into a readable digital format requires an application-specific integrated circuit. Filters are used to remove high-frequency noise and vibration that could mask the real signal. Output is typically provided through a standard interface like SPI or I2C.
Integration Capability
Compact size and low power consumption allow these devices to be used in portable electronics and small drones. Multi-axis units combine three separate gyroscopes to track motion in all directions. As manufacturing techniques improve, the cost per unit continues to drop, enabling use in a wider range of consumer products.
Performance is verified by comparing the sensor output to a calibrated rate table in a controlled environment. Modern designs incorporate self-test features to verify the mechanical integrity of the proof mass during power-on.
