阵列光电传感器的非线性校正

doi:10.3969/j.issn.1000-1158.2019.03.11

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摘要阵列光电传感器在接近饱和时表现出非线性,但是可以通过阵列传感器的线性区的系数外推得到修正,而且只需在一个波长位置测得曝光量与A/D转换值的响应曲线,将能够推广到任意波长位置。为此,利用最小二乘法进行多项式拟合和软件的非线性校正,在同等硬件配置的条件下,增加了线阵传感器的线性区,延拓了传感器的动态范围。在整个动态范围内,系统测量误差可以减少到±2%。此非线性校正方法也非常适用于光电阵列传感器的光谱仪生产厂的强度定标校正。

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	童建平
	杨建武
	郑文强
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	杨浩

关键词 ：计量学, 阵列光电传感器, 非线性校正, 光谱响应, 多项式拟合

Abstract：Optoelectronic array sensors exhibit nonlinearity near saturation, but can be corrected by extrapolating the coefficients in the linear region of the array sensors. The response curve between exposure and A/D conversion can be extended to any wavelength position as long as the exposure curveis measured at one wavelength position. For this reason, the least square method is used through polynomial fitting and software nonlinearity correction. Under the same hardware configuration, the linear region of linear array sensor is added, and the dynamic range of sensor is extended. In the whole dynamic range, the measurement error of the system can be reduced to ±2%. This non-linear correction method is also very suitable for intensity calibration correction in spectrometer production factories using photoelectric array sensors.

Key words： metrology optoelectronic array sensor nonlinearity correction spectral response polynomial fitting

收稿日期: 2018-03-26 发布日期: 2019-04-19

PACS:

TB96

基金资助:国家自然科学青年基金(11605153);浙江工业大学创新性实验项目(SYXM1741)

作者简介: 童建平(1966-),男,硕士,浙江建德人,浙江工业大学光学与光电子研究中心,高级工程师,硕士生导师,主要从事仪器仪表与检测方面的研究。Email: tong559@zjut.edu.cn

引用本文:

童建平,杨建武,郑文强,汪飞,杨浩. 阵列光电传感器的非线性校正[J]. 计量学报, 2019, 40(3): 416-420.
TONG Jian-ping,YANG Jian-wu,ZHENG Wen-qiang,WANG Fei,YANG Hao. Nonlinear Correction of Optoelectronic Array Sensor. Acta Metrologica Sinica, 2019, 40(3): 416-420.

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