多光谱红外靶标-多孔径红外靶标-IR 704红外辐射源

发布时间:2022/06/27 浏览次数:1657 分类:Imatest/HGH/ISDC ISDC黑体辐射源品牌分类黑体辐射源

品牌：ISDC，型号：IR-704

多光谱红外靶标-多孔径红外靶标-IR 704红外辐射源是一套用于测试多波长下真温场的多光谱目标系统，该系统集成了黑体源、电动光阑转轮、电动滤光片、高速快门和高速滤光快门等核心部件，被设计为一个强制风冷多光谱、多孔径目标系统，既可以直接与准直仪/目标投影系统集成在一起，也可以直接作为一个目标系统。系统操作可通过内部微处理器（带有RS-232/RS-485控制接口或辅助的直接硬件端口）进行控制。ISDC IR-704/301系统包括一个¼”腔式黑体源、4孔光阑转轮、4位滤光片、滤光片控制线圈和快门控制线圈。每部分功能都通过串口命令进行单独控制，包括黑体温度控制、孔径选择、滤光片选择、快门控制线圈激活和滤光片控制线圈激活。快门和滤光片控制线圈的激活时间小于5ms，可使目标在不到10ms的时间内实现从“关闭”到“双滤波”再到“滤波”的高速进程，可用于多光谱红外热像仪的各项校准，如分辨率、灵敏度、噪声等效温差NETD、最小可分辨温差MRTD等。

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多光谱红外靶标-多孔径红外靶标-IR 704红外辐射源

多光谱红外靶标-多孔径红外靶标-IR 704红外辐射源包括一个¼”腔式黑体源、4孔光阑转轮、4位滤光片、滤光片控制线圈和快门控制线圈。每部分功能都通过串口命令进行单独控制，包括黑体温度控制、孔径选择、滤光片选择、快门控制线圈激活和滤光片控制线圈激活。快门和滤光片控制线圈的激活时间小于5ms，可使目标在不到10ms的时间内实现从“关闭”到“双滤波”再到“滤波”的高速进程。

其独立控制功能，使IR-704系统的滤光片/孔径/快门选项以及变温黑体辐射源（从50^oC到1050^oC）存在32种不同的组合，这样提供了接近无限的红外能量输出变化。内部黑体由IR-301控制器控制，RS-232接口可远程控制所有功能。

Infrared Systems Development Corporation (ISDC) was formed in 1997 with the acquisition of Graseby Infrared’s instrument product lines, which were acquired from Infrared Industries (IRI), Infrared Systems (IRS), and Barnes Engineering Company. These products include blackbody sources, spectral radiometer systems, energy modulators and accessories.

The engineering, manufacturing and technical personnel involved with these products since their inception are included in the complement of our personnel.

We have modified and improved many of these products and have developed several new products, such as our infrared detector preamplifiers, and TE Cooled blackbody.

All of our products are developed and manufactured at our facility in Orlando Florida.

We also develop systems for custom applications, and offer design consulting services for many infrared instrument and sub-system projects. Our experienced staff can offer assistance in almost any IR field, and offer suggestions for your system needs. Contact us for more information.

The IR-704 system integrates a Blackbody source, Motorized Aperture wheel, Motorized Filter Wheel, High Speed Shutter and High Speed Filter Shutter. The system was designed as a forced air-cooled Multi-Spectral, Multi-Aperture target system for direct integration with collimator / target projection systems, but can also be used as a direct target system. System operations are controlled by an internal microprocessor with RS-232 / RS-485 control interface, or an auxiliary direct hardware port.

The system is optically arranged with a ¼” Cavity Blackbody source, 4 position aperture wheel, 4 position filter wheel, filter solenoid and shutter solenoid. Each of the assets are individually controlled via Serial port commands to allow Blackbody temperature control, Aperture selection, Filter selection, Shutter solenoid activation and Filter solenoid activation. The activation time of the shutter and filter solenoids is less than 5 milliseconds to allow target high-speed progression from Off to Dual filtered to filtered in less than 10 milliseconds. (components pictured on the left)

多光谱红外靶标-多孔径红外靶标-IR-704红外辐射源

工作原理：

根据辐射理论，任何物体只要不处于绝对零度（-273.15 ℃），那么在其他任意温度下都存在热辐射。处于热平衡状态的黑体在半球方向的单色辐射出射度是波长和温度的函数。在一定的波长下，黑体的单色辐射出射度是温度的单值函数，可以通过某一波长下的单色辐射出射度的测量来得出黑体的温度。这就是辐射测温学的理论基础，黑体辐射的普朗克辐射定律。

一般来说，红外热像仪是利用红外探测器和光学成像物镜接收被测目标的红外辐射能量分布图形反映到红外探测器的光敏元件上，从而获得红外热像图，这种热像图与物体表面的热分布场相对应，但是目前利用热像仪获取热图像的装置都是以单波长为主，只能获取被测目标在某一特定波长下的亮温场，不能获得被测目标的真温场，而多光谱红外热像仪则能很好的解决这一问题，那么对于多光谱红外热像仪就需要在不同的光谱和不同孔径的目标下进行校准，ISDC IR-704/301系统包括一个¼”腔式黑体源、4孔光阑转轮、4位滤光片、滤光片控制线圈和快门控制线圈。每部分功能都通过串口命令进行单独控制，包括黑体温度控制、孔径选择、滤光片选择、快门控制线圈激活和滤光片控制线圈激活。快门和滤光片控制线圈的激活时间小于5ms，可使目标在不到10ms的时间内实现从“关闭”到“双滤波”再到“滤波”的高速进程，可用于多光谱红外热像仪的各项校准，如分辨率、灵敏度、噪声等效温差NETD、最小可分辨温差MRTD等。