A method for measuring the relative centroid
By combining the three-point weighing method with the static moment balance principle to measure the relative center of mass, the problem of insufficient accuracy in existing center of mass measurement has been solved, achieving high-precision center of mass measurement and improving the launch accuracy of warhead products.
CN116448317BActive Publication Date: 2026-05-26BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
- Filing Date
- 2023-01-13
- Publication Date
- 2026-05-26
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Figure CN116448317B_ABST
Abstract
This invention proposes a relative center of mass measurement method to obtain the distance between the axial center of mass and the tip. Based on the three-point weighing method for center of mass measurement, this invention measures the product in a horizontal axial position by performing two measurements, one in the forward direction and one in the reverse direction. This transforms the direct measurement of the axial center of mass into the phase offset of the two measurements, thereby calculating the distance between the axial center of mass and the rotation axis. This distance is then combined with the distance between the rotation axis and the large end of the product to obtain the distance between the center of mass and the large end of the product. Based on this distance and the product length, the axial center of mass is obtained.
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