Infrared and Laser Engineering, Volume. 50, Issue 11, 20210143(2021)
Optimization for support parameters of integration SiC/Al tilt-mirror used for laser communication
Figures & Tables(14)
Fig. 1. "One-point to multiple-points" laser communication antenna and two-axis tilt-mirror unit
Fig. 4. Relationship between the natural frequency
Fig. 7. Simulation result of tilt-mirror modal. (a) Resonant frequency of each order; (b) Mode shape of first-order resonance frequency
Fig. 8. Simulation cloud image of tilt-mirror surface shape change. (a) Surface shape change of the tilt-mirror when the mounting surface error is 3 μm; (b) Surface shape change of the tilt-mirror under 5 ℃ temperature rise load
Fig. 9. Physical drawing of tilt-mirror and mounting seat. (a) Physical drawing of tilt-mirror; (b) Physical drawing of mounting seat
Fig. 10. Test result of flatness of tilt-mirror and mirror seat mounting surface. (a) Flatness detection of tilt-mirror mounting surface;(b) Flatness detection of mirror seat mounting surface
Fig. 11. Test result of tilt-mirror surface shape error. (a) Test result of tilt-mirror surface shape error after installation; (b) Test result of tilt-mirror surface shape error under 5 ℃ temperature rise load
Table 1. Material properties
View tableView in ArticleTable 1. Material properties
Material Elastic modulus/ GPa Density/ g·cm−3 Specific stiffness Thermal conductivity/ W·m−1·K−1 Linear expansion coefficient/10−6K−1 Thermal stability SiC 310 2.92 106 158 2.64 60 SiC/Al 235 3.03 78 230 7.8 29 Crystoe and neoparies 90.6 2.53 36 1.64 0.05 33 Steel(45) 200 7.81 26 48.1 11.59 4 Aluminium 68.2 2.68 25 167 23.6 7 Titanium alloy(TC4) 109 4.44 25 7.8 8.9 0.88
Table 2. Surface shape PV(RMS) value of tilt-mirror at different support point positions
View tableView in ArticleTable 2. Surface shape PV(RMS) value of tilt-mirror at different support point positions
b/mm a/mm 5 8 12 15 30 527.1(105.4) 351.4(81.2) 253.0(63.2) 234.2(57.8) 35 332.9(79.1) 253.0(70.8) 225.9(52.7) 234.2(52.6) 40 275.4(70.3) 225.9(58.5) 186.0(45.2) 197.6(48.7) 45 243.3(63.2) 210.8(57.1) 197.6(53.2) 204.0(52.7) 50 253.4(57.5) 234.2(58.8) 218.1(52.4) 210.8(54.1) 55 287.5(71.4) 253.0(63.3) 225.9(52.8) 218.1(57.5） 60 332.9(80.1) 301.2(70.2) 243.3(57.5) 225.9(48.7)
Tools
Get Citation
Copy Citation Text
Xiaoming Li, Longming Wang, Guoshuai Zhu. Optimization for support parameters of integration SiC/Al tilt-mirror used for laser communication[J]. Infrared and Laser Engineering, 2021, 50(11): 20210143
Paper Information
Category: Lasers & Laser optics
Received: Mar. 9, 2021
Accepted: --
Published Online: Dec. 7, 2021
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20