Design of infrared point source interference device with high frame frequency and wide temperature range

Number	Materail	Density/ kg·m⁻³	Elastic modulus/ GPa	Poisson ratio	Thermal conductivity/ W·m⁻¹·K⁻¹	Specific heat capacity/ J·kg⁻¹·K⁻¹	Melting point/ ℃	Boiling point/ ℃
1	C	2 260	33		140	710	3 550	4 027
2	Ti	4 507	110	0.32	22	520	1 668	3 287
3	Fe	7 847	211	0.29	80	449	1 538	2 861
4	Co	8 900	209	0.31	100	421	1 495	2 927
5	Ni	8 908	200	0.31	91	445	1 455	2 913
6	Cu	8 920	130	0.34	400	384.4	1 084.62	2 927
7	Mo	10 280	329	0.31	139	251	2 623	4 639
8	Ta	16 650	186	0.34	57	140	3 017	5 458
9	W	19 250	411	0.28	170	132	3 422	5 555
10	Pt	21 090	168	0.38	72	133	17 68.3	3 825
11	Au	19 300	220	0.44	320	129.1	1 064.18	2 856
12	06Cr9Ni10	7 930	1 930	0.27	21.5 (500 ℃)	500	1 398

Table 2. Thickness parameter

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Table 2. Thickness parameter

Number	Material	C/ J·kg⁻¹·K⁻¹	ρ/ kg·m⁻³	ρ₀/ Ω·m	t/s	∆T/K	b/mm	a/μm
Number	Material	C/ J·kg⁻¹·K⁻¹	ρ/ kg·m⁻³	ρ₀/ Ω·m	t/s	∆T/K	b/mm	I=1 A	I=2 A	I=3 A	I=5 A
1	W	132	19 250	5.00E-08	0.1	500	1	1.983 799	3.967598	5.951 397	9.918 995
2	Mo	251	10 280	5.00E-08	0.1	500	1	1.968 641	3.937283	5.905 924	9.843 206
3	Ta	140	16 650	1.30E-07	0.1	500	1	3.339 762	6.679524	10.019 29	16.698 81
4	Cu	384.4	8 920	1.70E-08	0.1	500	1	0.995784	1.001569	2.987 353	4.978 922
5	Au	129.1	19 300	2.20E-08	0.1	500	1	1.328 876	2.657753	3.986 629	6.644 382
6	Ti	520	4 500	4.20E-07	0.1	500	1	5.991447	11.98289	17.974 34	29.957 23
7	06Cr19Ni10	500	7 930	7.30E-07	0.1	500	1	6.132 129	12.13626	18.204 39	30.340 65
8	Ni	445	8 908	6.80E-08	0.1	500	1	1.852249	3.704498	5.556 747	9.261 244

Table 3. Summary of test results

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Table 3. Summary of test results

Material	Thickness/ μm	Time (500-1 000 ℃)/ ms	Time (1 000-500 ℃)/ ms	Power/ W
06Cr19Ni10	3	50	78	18.8
Ti	2	50	50	33.9
Ni	2	50	75	16.4

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Yanwei Li, Qingjing Gao, Haodong Wei, Jiangtao Li. Design of infrared point source interference device with high frame frequency and wide temperature range[J]. Infrared and Laser Engineering, 2021, 50(11): 20210218

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