Jun Ma. Coplanarity evaluation model of long linear LWIR detector[J]. Infrared and Laser Engineering, 2022, 51(3): 20210276
- Infrared and Laser Engineering
- Vol. 51, Issue 3, 20210276 (2022)
Fig. 1. External configuration of FPA
Fig. 2. Section of FPA
Fig. 3. Internal configuration of FPA
Fig. 4. FEM of FPA
Fig. 5. Internal force of laminates
Fig. 6. Structure of isotropic laminates
Fig. 7. Curves of laminates flatness with the CTE of laminate 1
Fig. 8. Schematic of the division of detector area
Fig. 9. Curves of the flatness of butting base with the thickness of cold plate
Fig. 10. Curves of the flatness of butting base with the CTE of cold plate
Fig. 11. Schematic of the design improvement of laminated structure
Fig. 12. Curves of the flatness of butting base with the thickness of cold plate after design improvement
Fig. 13. Curves of the flatness of butting base with the CTE of cold plate after design improvement
Fig. 14. Deformation of FPA in ground test (Unit: mm)
Fig. 15. Schematic of detector flatness test
Fig. 16. Location of sample point in the flatness test of detector
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Table 1. Flatness of butting base under different cases
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Table 2. Material parameters for verifying analysis
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