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AOAC国际方法性能统计数据在实验室中的运用 被引量:1
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作者 陈瑛 《现代商检科技》 1999年第4期58-62,共5页
许多AOAC方法都包含有方法性能统计数据,它是精密度或变异性的估计量。这些统计数据能为一种方法在日常使用中所能达到的精密度水平提供有用的指导。的确,以实用的、合理的标准化的方式确定方法性能是AOAC公定方法方案的目标... 许多AOAC方法都包含有方法性能统计数据,它是精密度或变异性的估计量。这些统计数据能为一种方法在日常使用中所能达到的精密度水平提供有用的指导。的确,以实用的、合理的标准化的方式确定方法性能是AOAC公定方法方案的目标之一,本文能对理解和解释AOAC方... 展开更多
关键词 AOAC方法 性能统计数据 实验室应用
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Design and Implementation of Image Acquisition System Based on STM32
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作者 QIN Wei YU Chaogang 《International English Education Research》 2017年第2期64-66,共3页
In order to solve the difficulty of reading inconvenience in the measurement process of digital track gauge, a kind of image data acquisition system with low cost and stable performance is designed. The system uses th... In order to solve the difficulty of reading inconvenience in the measurement process of digital track gauge, a kind of image data acquisition system with low cost and stable performance is designed. The system uses the Cortex-M4 as the core of the STM32F407ZGT6 as the control core, the use of OV2640 as an image sensor to collect images, and the collection of image files stored in the SD card for subsequent image processing to achieve the goal of rail adjustment to lay the foundation. The experimental results show that the image acquisition is stable and refiable and the collected images are clear and meet the design requirements. 展开更多
关键词 STM32F407 OV2640 Image acquisition
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