一种宽线胀系数设计范围的套接式计量杆
By combining an inner carbon fiber rod with a middle metal rod, changing the carbon fiber layup angle and adjusting the length of each rod layer, the problem of the small design range of the linear expansion coefficient of carbon fiber rods was solved, achieving high-precision temperature stability and low-cost manufacturing of optical instruments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGGUANG SATELLITE TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the linear expansion coefficient of carbon fiber rods has a small design range, making it difficult to achieve high-precision temperature stability. In particular, manufacturing errors have a significant impact on large-span optical systems, which cannot meet the stability requirements of high-precision optical instruments.
A socket-type measuring rod is designed, which adopts a combination structure of inner carbon fiber rod and middle metal rod. By changing the carbon fiber layup angle and adjusting the length of each layer of rod, a wide range of linear expansion coefficient design can be achieved. Combined with adhesive and threaded connection, the equivalent axial linear expansion coefficient can be flexibly designed within a large range.
It enables flexible design of the equivalent axial linear expansion coefficient of the measuring rod within a wide range, has a simple structure, is easy to manufacture, reduces manufacturing costs, and improves the temperature stability and imaging quality of optical instruments.
Smart Images
Figure CN120467139B_ABST
Abstract
Citation Information
Patent Citations
Adjustable support bracket for low temperature experiment of material with low coefficient of linear expansion and design method thereof
CN102537615A
Axial heat dissipation truss supporting mechanism for space optical camera
CN111538131A