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DLPNIRSCANEVM: 修改Exposure Time,比如从0.6ms修改为5.08ms,保持其它参数不变,得到的光谱强度没有变化,这是为什么?

Part Number: DLPNIRSCANEVM


我使用DLPNIRscanNanoGUI_2.1.0,连接Texas Instruments DLP® NIRscanTm Nano Evaluation,其它参数保持不变,只修改Exposure Time,比如从0.6ms修改为5.08ms,光谱的强度基本上没有变化,这是为什么?

我用过的其它光谱仪,Exposure Time(曝光时间,或者其它仪器公司说的Integrate Time)与信号强度应该是正比关系,是这款设备有特别的处理吗?