We present the first chip-scale "integrated optical driver" (IOD) that can interrogate with a sensing coil to realize an interferometric optical gyroscope. The chip comprises a light source, three photodiodes, two phase modulators and two 3-dB couplers within an area of 4.5 mm2. This allows for a significant reduction in size, weight, power consumption and cost of optical gyroscopes.

Spontaneous emission noise is an important limit to the performance of active plasmonic devices. Here, we investigate the spontaneous emission noise in the long-range surface plasmon-polariton waveguide based optical gyroscope. A theoretical model of the sensitivity is established to study the incoherent multi-beam interference of spontaneous emission in the gyroscope. Numerical results show th...

MEMS gyroscopes offer a simple way to measure the angular rate of rotation in packages that easily attach to printed circuit boards, so they are a popular choice to serve as the feedback sensing element in many different types of motion control systems. In this type of function, noise in the angular rate signals (MEMS gyroscope output) can have a direct influence over critical system behaviors,...

An artificial landmark-based, automatic navigation system was developed for a small-scale field robot. Several low-cost sensing techniques were involved in the system to detect surroundings and determine the position of the moving robot. Several tests were conducted to evaluate the accuracy of linear distance and angular displacement using dead-reckoning with a gyro-correction, overall performa...

The cylindrical resonator gyroscope (CRG) is a typical Coriolis vibratory gyroscope whose performance is determined by the Q factor and frequency mismatch of the cylindrical resonator. Enhancing the Q factor is crucial for improving the rate sensitivity and noise performance of the CRG. In this paper, for the first time, a monolithic cylindrical fused silica resonator with a Q factor approachin...

The development of wave solid-state gyroscopes (VTG) is one the promising areas gyroscopic angular velocity sensors. VTG from standpoint manufacturing technology, tuning and control systems, as well accuracy characteristics, has a number advantages compared to other types gyroscopes. When developing VTG, they strive reduce gyroscope's own care, zero signal bias, non-linearity scale factor in op...

A novel multifrequency excitation (MFE) method is proposed to realize rapid and accurate dynamic testing of micromachined gyroscope chips. Compared with the traditional sweep-frequency excitation (SFE) method, the computational time for testing one chip under four modes at a 1-Hz frequency resolution and 600-Hz bandwidth was dramatically reduced from 10 min to 6 s. A multifrequency signal with ...

This paper represents a MEMS based gyroscope to measure orientation. Silicon-micro-machined gyro is fabricated on the basis of resonators and they use vibrating mechanical element to sense rotation. The vibratory measurement can be done by measuring the change in capacitance with respect to the voltage or force applied in particular axis. Here MEMS based gyroscope has been designed from Lame mo...

In this paper, absolute positioning instrument using trilateration ultrasonic sensor is mainly proposed to estimate absolute position errors combined with estimated position and orientation from differential odometry integrated with gyroscope to calculate absolute position of mobile robot. In the method, the indirect Kalman filter is mainly used to estimate absolute position errors and the esti...

In this paper, a digital rebalance loop for MEMS gyroscope is designed and its performance test is performed. First, the system model of MEMS gyroscope is established by dynamic analysis. Then, the digital rebalance loop is designed using modern control technique. The performance of the digital rebalance loop is compared with that of conventional PID rebalance loop. Through frequency response a...