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影响洗液沾色评级结果因素分析 被引量:1
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作者 吴海花 曾钦学 应永昌 《纺织标准与质量》 2021年第5期54-56,59,共4页
为了分析影响洗液沾色评级结果的因素,采用控制变量的方法,按照FZ/T 73020-2019中的6.1.11进行多组平行试验。该试验结果表明,比色管到白色纸卡的距离,由距离A到距离B,评级结果发生改变的概率为88.89%;由距离B到距离C,评级结果发生改变... 为了分析影响洗液沾色评级结果的因素,采用控制变量的方法,按照FZ/T 73020-2019中的6.1.11进行多组平行试验。该试验结果表明,比色管到白色纸卡的距离,由距离A到距离B,评级结果发生改变的概率为88.89%;由距离B到距离C,评级结果发生改变的概率为55.56%;由距离A到距离C,评级结果发生改变的概率为100%。评级时样液的温度和时间与初始数据对比,最大的差异率为33.33%。即比色管到白色纸卡的距离对洗液沾色评级结果影响较大,评级时样液的温度和评级前样液放置时间对评级结果影响较小。该试验表明,样液状态发生改变易造成评级时的视觉偏差,将短时间内的部分混浊或完全凝固样液加热到试验温度时的评级结果无变化。 展开更多
关键词 洗液沾色 放置距离 评级时间 影响
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Quantifying Design Parameters of Symbology Page for Automotive Head up Display
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作者 Gupta Sharad Karar Vinod +2 位作者 Saini Surender Singh Jaggi Neena Bajpai Phun Phun 《Computer Technology and Application》 2011年第8期658-662,共5页
This paper gives an overview of studies on parameters displayed on the Automotive Head Up Display (A-HUD) including calculation and construction of symbology page based on study results. A study has been made on vit... This paper gives an overview of studies on parameters displayed on the Automotive Head Up Display (A-HUD) including calculation and construction of symbology page based on study results. A study has been made on vital parameters required for car drivers and design calculations have been made based on design parameters like field of view, distance from the design eye position, minimum character size viewable from a distance of 1.5m between driver and the projected image, and optical magnification factor. lhe display format suitable for A-HUD applications depends upon the parameters required to be displayed. The aspect ratio chosen is 4:3. This paper also provides method to design the symbology page embedding six vital parameters with their relative positioning and size considering relative position between display device and optical elements which has been considered with a magnification factor of 2.5. The field of view obtained is 6.7° × 4.8°. 展开更多
关键词 Automotive head up display (A-HUD) MAGNIFICATION symbology character size human factors field of view (FOV). design eye position (DEP).
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