The Development of Tooth Displacement Measuring Device using Two Magnetic Fields in Quadrature Phase
| Project/Area Number |
04671209
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
補綴理工系歯学
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| Research Institution | Tokushima Bunri University |
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Principal Investigator |
FUJIMURA Tetsuya Tokushima Bunri University, Faculty of Engineering, Lecturer, 工学部, 講師 (80219047)
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIDA Tomoji Tokushima Bunri University, Faculty of Engineering, Assistant, 工学部, 助手 (80220656)
KIYOZUMI Ryousaku Tokushima Bunri Junior College, Lecturer, 短期大学部, 講師 (50136280)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1993: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1992: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | magnetic fields / tooth displacement / tooth displacement measuring device / 6自由度歯牙変位 |
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| Research Abstract |
The purpose of this research was to develop a non-contact type device for measuring tooth displacement using primary and secondary coils. The primary coil was placed extermally at a fixed position, and 90 degrees different phase of sine current was circulated. Magnetic flux produced by the primary coil was detected by electromagnetic induction output signal of secondary coil, which was fixed on the maxillary and mandibular teeth. Tooth displacement was calculated with the change of its phase.
The results were as follows :
1.Tooth displacement measuring device was fabricated based on the results of the simulation of each electrical circuit. The obtained results were similar to that of the theoretical value. And it was fabricated by connecting each electrical circuit, which demonstrated independence in each direction.
2.A computer program neccessary for data analysis and collection was developed. Specifically for data analysis, it was possible to perform dinamic simulation of the tooth in three dimensions using three dimensional super graphics computer.
3.This device serves as a standard in the measument of small displacement in 6 degrees of freedom.
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Report
(3 results)
Research Products
(10 results)
