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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhang, Rui Wu, Liang Peng, Donglin Liu, Yang Peng, Lingli |
| Abstract | This article proposes a planar-coil linear time grating displacement sensor. Compared with the existing magnetic field-type linear time grating, the structure without tooth and slot improves the velocity uniformity of travelling wave magnetic field and the measurement accuracy can be greatly improved. The two-phase excitation coils are arranged to form a plane coil array, and the travelling wave magnetic field is generated after the two-phase orthogonal signals are entered, respectively. Then, the electric travelling wave signal is induced by the pickup coils, and the displacement is obtained after processing. The signal processing circuit is designed to amplify and filter the electric travelling wave signal, and the accuracy experiment is carried out. Result shows that in the range of 240 mm (full-scale), the measurement accuracy can achieve ±0.8 μm. |
| Starting Page | 355 |
| Ending Page | 357 |
| Page Count | 3 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 13, Jan (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.9029 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-22 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
| Subject Keyword | Coils Diffraction Gratings Displacement Measurement Electric Travelling Wave Signal Inductors And Transformer Pickup Coils Planar-coil Linear Time Plane Coil Array Spatial Variables Measurement Travelling Wave Magnetic Field Two-phase Excitation Coils Two-phase Orthogonal Signal |
| Content Type | Text |
| Resource Type | Article |
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