The Sound and Feel of Titrations: A Smartphone Aid for Color-Blind and Visually Impaired Students
The Sound and Feel of Titrations: A Smartphone Aid for Color-Blind and Visually Impaired Students
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DOI：
10.1021/acs.jchemed.7b00027
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发表时间：
2017-07-01
影响因子：
3
通讯作者：
Rathod, Balraj B.
中科院分区：
文献类型：
--
作者：
Bandyopadhyay, Subhajit;Rathod, Balraj B.
开发了一个基于Android的应用程序，为色盲和视障学生提供滴定中观察到的颜色变化的多感官感知。该应用程序记录并将颜色信息转换为智能手机产生的蜂鸣声和振动脉冲。它使用。HSV（色调，饱和度值）颜色空间的色调和饱和度坐标的范围阈值，用于检测特定于指示符的颜色变化，例如，用于基于酚酞的滴定的粉红色色调，并在达到终点之前和之后通知用户。这种方法可以使色盲和视力受损的学生积极进行滴定的相当常规的实验室活动。
An Android-based application has been developed to provide color-blind and visually impaired students a multisensory perception of color change observed in a titration. The application records and converts the color information into beep sounds and vibration pulses, which are generated by the smartphone. It uses. a range threshold of hue and saturation coordinates of the HSV (hue, saturation value) color space for detecting a color change specific to an indicator for, e.g., shades of pink for phenolphthalein-based titration, and informs the users before and upon attaining the end point. This approach can enable color-blind and visually impaired students to actively perform a fairly routine laboratory activity of titration.