Abstract
A hi-speed rotation angular rate sensor based on an electromagnetic induction signal is proposed to provide a possibility of wide range measurement of high angular rates. An angular rate sensor is designed that works on the principle of electromagnetism (EM) induction. In addition to a zero-phase detection technique, this sensor uses the feedback principle of magnetic induction coils in response to a rotating magnetic field. It solves the challenge of designing an angular rate sensor that is suitable for both low and high rotating rates. The sensor was examined for angular rate measurement accuracy in simulation tests using a rotary table. The results show that it is capable of measuring angular rates ranging from 1 rps to 100 rps, with an error within 1.8‰ of the full scale (FS). The proposed sensor is suitable to measurement applications where the rotation angular rate is widely varied, and it contributes to design technology advancements of real-time sensors measuring angular acceleration, angular rate, and angular displacement of hi-speed rotary objects.
Highlights
Angular rate sensors are important elements for measuring flying motion parameters
A magnetic sensor was installed in an analogue rotating magnetic field; see Figure 5
A semi-physical high rotational speed simulation was performed with the sensor fixed on a three‐axle flying simulation rotary table
Summary
Angular rate sensors are important elements for measuring flying motion parameters. They find extensive applications in consumer electronics, industries, and armament sectors.An angular rate sensor can be implemented by use of optical, mechanical, or electromagnetic effects, different physical effects producing different types of sensor. Internal ones are largely implemented using an inertia sensor [1], a mechanical rotor [2], or magnetic field effect [3,4,5] technology, whilst external ones generally use image analysis [6,7] or mechanical gear methods. Internal ones, such as MEMS [8,9], optical gyroscopes [10], and electrostatic gyroscopes [11,12], are subject to limited room, impact influence, and EM interference and are limited in both sensing accuracy and measurement range. Tachometers for example, are capable of high accuracy and large range measurement within their detection range but are unable to measure the angular rate of a body tracked at a long range
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