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NIR spectroscopic monitoring of resin-loading during assembly of engineered wood product
NIR spectroscopic monitoring of resin-loading during assembly of engineered wood product
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机译:近红外光谱监测工程木产品组装过程中树脂的负载
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摘要
Calibrating visual (VIS) and near infra red (NIR) spectroscopic instrumentation for quantitative measurement of resin-loading of prepared wood materials, as moving in an assembly-forming line, for subsequent pressing under heat and pressure for manufacture of engineered-composite wood product. Feedback of measured data of resin-loading, during in-line assembly operations, enables maintaining consistent resin-loading and optimizes resin usage. Calibration of VIS/NIR spectroscopic instrumentation can be carried out on equipment simulating in-line movement of pre-established reference-source test-samples; or, can be carried out during on-line movement of wood-material test samples. The developed calibration method removes absorptive effects at wavelengths for constituents other than resin, such as the moisture content of the wood-materials and of the resin, while maintaining accurate and prompt VIS/NIR spectroscopic measurements of resin-loading in a continuous assembly line.
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机译:校准视觉(VIS)和近红外(NIR)光谱仪器,用于定量测量在组装生产线中移动时所制备的木质材料的树脂负载量,随后在加热和加压下进行压制,从而制造工程复合材料木材。在线组装操作过程中,对树脂负载量测量数据的反馈能够保持一致的树脂负载量并优化树脂用量。 VIS / NIR光谱仪器的校准可以在模拟预先建立的参考源测试样品在线移动的设备上进行;或者,可以在木质材料测试样品的在线移动过程中进行。开发的校准方法消除了除树脂以外的其他成分在波长处的吸收效应,例如木材和树脂的水分含量,同时保持了连续装配线中树脂负载的准确,快速的VIS / NIR光谱测量。
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