Gyroscope – TechConnect Briefs

The field self-calibration method of MEMS gyroscopes and accelerometers for Micro inertial measurement system

Li J.L., Chen A.S., Du M., Beijing University of Aeronautics and Astronautics, CN

The Micro Inertial Measurement System (MIMS) is important equipment for micro aircraft and robot. The biases calibration of MEMS gyroscopes and accelerometers are an effective way to reduce measurement error. In according to error mathematical [...]

Is one gyroscope enough?

Capovilla M., STMicroelectronics, US

Market requirements push on small, lightweight portable device with advance feature for user interface, gesture recognition and camera features. New generation of portable device required gyroscope sensing capability for advanced gaming, high-performance motion detection, gesture [...]

Formal Verification of a MEMS Based Adaptive Cruise Control System

Jairam S., Lata K., Roy S., Bhat N., Texas Instruments India Pvt Ltd., IN

A formal verification approach for MEMS based embedded systems is presented. The methodology is demonstrated on an adaptive cruise control (ACC) system for the motion control of a platoon of cars. The system consists of [...]

Adaptive Control for Reducing the Effect of Damping on the Output Signal of Microgyroscopes

Khalilyulin R., Hauck T., Wachutka G., Münich University of Technology, DE

A mixed-level modeling methodology is employed to set up a full system simulation model for microgyroscopes together with the control circuitry in order to investigate the performance of novel adaptive closed-loop control strategies, which allow [...]

Multi-Degree of Freedom Micromachined Decoupled Gyroscope for Automotive Applications

Acar C., Painter C.C., Schofield A.R., Shkel A.M., UCI Microsystems Laboratory, US

Towards a robust sensor design for automotive systems, we introduce a novel multi-degree of freedom gyroscope system. The design offers a number of unique advantages over conventional gyroscope designs. Firstly, quadrature error is reduced due [...]

Electrostatic Tuning of a Micro-Ring Gyroscope

Gallacher B.J., Hedley J., Burdess J.S., Harris A.J., Rickard A., King D., Insat University of Newcastle, UK

This paper describes a procedure for identifying and correcting anisoinertia and anisoelasticity present in a micro-ring gyroscope. The major disadvantages of popular tuning methods such as mass trimming using laser ablation or focussed ion beam [...]

Dynamically Amplified Rate Integrating Gyroscopes

Painter C., Shkel A., University of California Irvine, US

The paper presents the design, modeling, simulation, and initial characterization of a novel MEMS vibratory rate integrating gyroscope, which uses a dual mass architecture. In contrast to conventional micromachined vibratory gyroscopes which measure angular rate, [...]

Simulation of Manufacturing Variations in a Z-axis CMOS-MEMS Gyroscope

Iyer S., Mukherjee T., Carnegie Mellon University, US

This paper uses MEMS circuit-level simulation to correlate gyro performance measures such as zero rate output (ZRO), linear acceleration sensitivity (Sa) and cross-axis sensitivity (Sca) to geometrical asymmetries. Elastic and electrostatic asymmetries in the gyroscope [...]

Nonlinear Mechanics of Suspension Beams for a Micromachined Gyroscope

Davis W.O., Pisano A.P., University of California-Berkeley, US

We present a method for the calculation of the coefficients of cubic stiffening for tether-suspended micromachined systems. The analysis is based on a nonlinear rod theory, and enables the prediction of the maximum achievable motion [...]

Optimal Design of A Tuning Fork Gyroscope and Its Testing Experiment

Dong Y., Tay F.E.H., Wen Y., Yuan X., Chen W.T., National University of Singapore, SG

The eigenfrequency of a MEMS Tuning Fork Gyroscope (TFG) is calculated using a formula derived from Rayleigh method. From this formula, the objective function for the optimal design is established. Then two methods to solve [...]