METHOD OF MEASURING ROTATING SPEED OF SPHERE USING ACCELEROMETER
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United States of America Patent
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Issued Date -
Jun 18, 2015
app pub date -
Dec 7, 2012
filing date -
Jun 8, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a method of measuring the rotating speed of a sphere for controlling the posture of a satellite. The method includes: an accelerometer installing operation in which a pair of accelerometers is installed at each accelerometer coordinate axis, the accelerometers being located in the sphere; an accelerometer coordinate axis alignment operation in which the accelerometer coordinate axes are aligned to allow the accelerometer coordinate axes to be in line with system coordinate axes, respectively; an acceleration measuring operation in which a current is applied to an electromagnet to rotate the sphere and sequentially measure the acceleration; an acceleration calculating operation in which only the acceleration generated by the rotation of the sphere is calculated; and a rotating speed calculating operation in which the rotating speed of the sphere with respect to each coordinate axis is calculated using the acceleration.

First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KOREA AEROSPACE RESEARCH INSTITUTE | DAEJEON 34133 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Choi, Hong-Taek | Daejeon, KR | 4 | 9 |
Kang, Wooyong | Daejeon, KR | 4 | 17 |
Kim, Dae-Kwan | Daejeon, KR | 5 | 20 |
Kim, Yong Bok | Daejeon, KR | 8 | 20 |
Yoon, Hyungjoo | Daejeon, KR | 2 | 4 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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