Small Pipeline Trajectory Estimation Using MEMS based IMU (original) (raw)

Abstract

Advances in Micro-Electro-Mechanical-Systems (MEMS) technology combined with the miniaturization of electronics, have made it possible to produce low cost and lightweight chip-based inertial sensors. These chips are small, lightweight, consumes very little power, and reliable. It has therefore found a wide spectrum of applications in the automotive and other industrial applications. MEMS technology, therefore, can be used to develop navigation systems that are inexpensive, small, and consume low power (microwatt). However, the current achieved performance by these low cost sensors is relatively poor due to their sensor errors. Nowadays, high-end tactical grade Inertial Measurement Units (IMUs) are used in pigging applications for estimating the trajectory of geo-pigs in pipelines. These types of IMUs are accurate enough to provide an acceptable solution. However, the size of the tactical grade IMUs is large and cannot be used in the small diameter pipelines (8” or less). This paper ...

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