A Novel Model of Life Prediction for Photoelectric Products and Its Application

Jianping Zhang; Yu Zong; Wenqing Zhu; Meng Yi

doi:10.3788/AOS201838.0223001

Acta Optica Sinica, Volume. 38, Issue 2, 0223001(2018)

A Novel Model of Life Prediction for Photoelectric Products and Its Application

Jianping Zhang^1、*, Yu Zong¹, Wenqing Zhu², and Meng Yi³

Author Affiliations

¹ College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China

² Key Laboratory of Advanced Display and System Applications of EMC, Shanghai University, Shanghai 200072, China

³ Zhejiang Yi Xin Electronic Technology CO., LTD, Jinhua, Zhejiang 321200, China

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Abstract Get PDF(in Chinese)

Figures & Tables(8)

Fig. 1. Flow chart of life prediction model

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Fig. 2. Life test platform of VFD

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Fig. 3. Average luminance attenuation data and corresponding Weibull fitting curves

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Fig. 4. Fitting curve of accelerated life and accelerated stress by Power function

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Table 1. Data of the average luminance of VFD attenuating with time under each stress

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Table 1. Data of the average luminance of VFD attenuating with time under each stress

j	T₁=1023.00 K		T₂=1055.56 K		T₃=1087.85 K		T₄=1123.33 K
j	t_j /h	D₁(t_j) /(cd·m^-2)	t_j /h	D₂(t_j) /(cd·m^-2)	t_j /h	D₃(t_j) /(cd·m^-2)	t_j /h	D₄(t_j) /(cd·m^-2)
0	0	1515.83	0	1468.12	0	1490.73	0	1492.65
1	238	879.09	46	1051.22	46	805.85	22	749.11
2	332	734.51	92	809.91	92	576.09	44	516.09
3	426	653.41	138	678.92	138	432.35	66	358.80
4	520	572.09	184	596.36	206	297.28	88	249.65
5	614	526.12	230	523.61	228	261.15	110	160.32
6	708	485.70	276	465.20	250	223.86	132	98.80
7	802	440.95	322	411.23	272	199.22
8	896	406.15	368	364.06	294	178.36
9	990	377.76	414	331.06	316	155.80
10	1084	348.58	460	298.62	338	132.40
11	1178	322.23	482	280.70
12	1272	305.19	504	268.54
13	1366	273.80	526	264.92
14	1454	265.02	548	249.29
15	1542	242.49	570	232.89
16	1630	225.99	592	225.45
17	1718	211.16	614	215.44
18	1806	191.06	636	207.28
19	1894	178.44	658	195.48
20	1982	165.91	680	189.73
21	2048	153.11	702	180.36
22			724	170.17
23			746	163.27
24			768	154.13

Table 2. Parameters in the formula of luminance attenuation under each stress
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Table 2. Parameters in the formula of luminance attenuation under each stress
Parameter T₁=1023.00 K T₂=1055.56 K T₃=1087.85 K T₄=1123.33 K
$\begin{matrix} {D_{i 0}}_{} \end{matrix}$ /(cd·m^-2) 1515.83 1468.12 1490.73 1492.65
m_i 0.6302 0.6477 0.6814 0.7555
η_i 577.2547 222.3388 97.7008 38.5721
$\begin{matrix} R_{i}^{2} \end{matrix}$ 0.9970 0.9976 0.9974 0.9893

Table 3. Parameters of goodness-of-fit test based on extrapolated functions
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Table 3. Parameters of goodness-of-fit test based on extrapolated functions
$\begin{matrix} R_{e}^{2} \end{matrix}$ $\begin{matrix} R_{P}^{2} \end{matrix}$ β_e β_P
0.9995 0.9997 29.1611 21.8637

Table 4. Life comparison
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Table 4. Life comparison
Item μ₀ μ_e μ₁
Lifetime /h 41686.5 47092.2 42457.1
Relative error /% 1.81 10.92 -

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Jianping Zhang, Yu Zong, Wenqing Zhu, Meng Yi. A Novel Model of Life Prediction for Photoelectric Products and Its Application[J]. Acta Optica Sinica, 2018, 38(2): 0223001

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