A Missile-Borne Angular Velocity Sensor Based on Triaxial Electromagnetic Induction Coils
Aiming to solve the problem of the limited measuring range for angular motion parameters of high-speed rotating projectiles in the field of guidance and control, a self-adaptive measurement method for angular motion parameters based on the electromagnetic induction principle is proposed. First, a fr...
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MDPI AG
2016-09-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/10/1625 |
| _version_ | 1811184510491951104 |
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| author | Jian Li Dan Wu Yan Han |
| author_facet | Jian Li Dan Wu Yan Han |
| author_sort | Jian Li |
| collection | DOAJ |
| description | Aiming to solve the problem of the limited measuring range for angular motion parameters of high-speed rotating projectiles in the field of guidance and control, a self-adaptive measurement method for angular motion parameters based on the electromagnetic induction principle is proposed. First, a framework with type bent “I-shape” is used to design triaxial coils in a mutually orthogonal way. Under the condition of high rotational speed of a projectile, the induction signal of the projectile moving across a geomagnetic field is acquired by using coils. Second, the frequency of the pulse signal is adjusted self-adaptively. Angular velocity and angular displacement are calculated in the form of periodic pulse counting and pulse accumulation, respectively. Finally, on the basis of that principle prototype of the sensor is researched and developed, performance of measuring angular motion parameters are tested on the sensor by semi-physical and physical simulation experiments, respectively. Experimental results demonstrate that the sensor has a wide measuring range of angular velocity from 1 rps to 100 rps with a measurement error of less than 0.3%, and the angular displacement measurement error is lower than 0.2°. The proposed method satisfies measurement requirements for high-speed rotating projectiles with an extremely high dynamic range of rotational speed and high precision, and has definite value to engineering applications in the fields of attitude determination and geomagnetic navigation. |
| first_indexed | 2024-04-11T13:14:28Z |
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| language | English |
| last_indexed | 2024-04-11T13:14:28Z |
| publishDate | 2016-09-01 |
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| spelling | doaj.art-252500aa0d474719a3acd16af5ce44602022-12-22T04:22:27ZengMDPI AGSensors1424-82202016-09-011610162510.3390/s16101625s16101625A Missile-Borne Angular Velocity Sensor Based on Triaxial Electromagnetic Induction CoilsJian Li0Dan Wu1Yan Han2Institute of Signal Capturing & Processing Technology, Key Laboratory of Shanxi Province, North University of China, Taiyuan 030051, ChinaInstitute of Signal Capturing & Processing Technology, Key Laboratory of Shanxi Province, North University of China, Taiyuan 030051, ChinaInstitute of Signal Capturing & Processing Technology, Key Laboratory of Shanxi Province, North University of China, Taiyuan 030051, ChinaAiming to solve the problem of the limited measuring range for angular motion parameters of high-speed rotating projectiles in the field of guidance and control, a self-adaptive measurement method for angular motion parameters based on the electromagnetic induction principle is proposed. First, a framework with type bent “I-shape” is used to design triaxial coils in a mutually orthogonal way. Under the condition of high rotational speed of a projectile, the induction signal of the projectile moving across a geomagnetic field is acquired by using coils. Second, the frequency of the pulse signal is adjusted self-adaptively. Angular velocity and angular displacement are calculated in the form of periodic pulse counting and pulse accumulation, respectively. Finally, on the basis of that principle prototype of the sensor is researched and developed, performance of measuring angular motion parameters are tested on the sensor by semi-physical and physical simulation experiments, respectively. Experimental results demonstrate that the sensor has a wide measuring range of angular velocity from 1 rps to 100 rps with a measurement error of less than 0.3%, and the angular displacement measurement error is lower than 0.2°. The proposed method satisfies measurement requirements for high-speed rotating projectiles with an extremely high dynamic range of rotational speed and high precision, and has definite value to engineering applications in the fields of attitude determination and geomagnetic navigation.http://www.mdpi.com/1424-8220/16/10/1625angular velocityangular displacementself-adaptive frequency tracking measurementFPGA |
| spellingShingle | Jian Li Dan Wu Yan Han A Missile-Borne Angular Velocity Sensor Based on Triaxial Electromagnetic Induction Coils Sensors angular velocity angular displacement self-adaptive frequency tracking measurement FPGA |
| title | A Missile-Borne Angular Velocity Sensor Based on Triaxial Electromagnetic Induction Coils |
| title_full | A Missile-Borne Angular Velocity Sensor Based on Triaxial Electromagnetic Induction Coils |
| title_fullStr | A Missile-Borne Angular Velocity Sensor Based on Triaxial Electromagnetic Induction Coils |
| title_full_unstemmed | A Missile-Borne Angular Velocity Sensor Based on Triaxial Electromagnetic Induction Coils |
| title_short | A Missile-Borne Angular Velocity Sensor Based on Triaxial Electromagnetic Induction Coils |
| title_sort | missile borne angular velocity sensor based on triaxial electromagnetic induction coils |
| topic | angular velocity angular displacement self-adaptive frequency tracking measurement FPGA |
| url | http://www.mdpi.com/1424-8220/16/10/1625 |
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