Improving the shutter-less compensation method for TEC-less microbolometer-based infrared cameras

Improving the shutter-less compensation method for TEC-less microbolometer-based infrared cameras
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改进无 TEC 微测辐射热计红外相机的无快门补偿方法

DOI:
10.1117/12.2177003
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
G. Gerlach
G. Gerlach
中科院分区:
--
文献类型:
--
作者:
A. Tempelhahn;H. Budzier;V. Krause;G. Gerlach

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基于微测辐射热计焦平面阵列(FPA)的无快门红外相机是热成像中使用最广泛的相机,特别是在手持设备和小型分布式传感器领域。对于可接受的测量不确定度值,必须根据相机内部热条件的温度测量来处理热环境条件变化的干扰影响。我们提出了一种补偿方法的基础上,不断变化的外部条件进行模拟,并确定所有的校正参数的校准测量。这允许处理原始红外数据并考虑所有干扰影响。分别考虑对像素响应度和偏移电压的影响。响应度校正需要两个不同的交替辐射源。本文介绍了补偿过程的细节,并讨论了获得低温度测量不确定度的相关问题。
Shutter-less infrared cameras based on microbolometer focal plane arrays (FPAs) are the most widely used cameras in thermography, in particular in the fields of handheld devices and small distributed sensors. For acceptable measurement uncertainty values the disturbing influences of changing thermal ambient conditions have to be treated corresponding to temperature measurements of the thermal conditions inside the camera. We propose a compensation approach based on calibration measurements where changing external conditions are simulated and all correction parameters are determined. This allows to process the raw infrared data and to consider all disturbing influences. The effects on the pixel responsivity and offset voltage are considered separately. The responsivity correction requires two different, alternating radiation sources. This paper presents the details of the compensation procedure and discusses relevant aspects to gain low temperature measurement uncertainty.
热红外传感器
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
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通讯作者: G. Gerlach
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影响因子: --
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影响因子: --
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期刊:
影响因子: --
作者:
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