A sensitive and low-cost colorimetric sensor array was developed to detect industrially important gases. We selected several target gases and indicators, and then used a printing method to fabricate an array to read the color value and to analyze the data. Using the printing method, various indicators can be produced in a uniform array on a desired substrate in a short time and at a low-cost. Four gases (ammonia, methylamine, trimethylamine, and hydrazine) and ten indicators were used to confirm the ability of the gas detection system. The color change of the dyes in the array was extracted in real time using an array reader with an integrated complementary metal-oxide semiconductor (CMOS) image sensor. The developed gas detection system successfully detected gases using an array reader, which provided data for sensitive color changes in real time using the CMOS image sensor. This mechanism could be applied industrially for detecting toxic gases because the developed sensor is highly sensitive and inexpensive.

开发了一种灵敏且低成本的比色传感器阵列来检测工业上重要的气体。我们选择了几种目标气体和指示剂，然后使用打印方法来制造阵列以读取颜色值并分析数据。使用印刷方法，可以在短时间内以低成本在期望的基板上以均匀的阵列生产各种指示剂。四种气体（氨，甲胺，三甲胺和肼）和十种指示剂用于确认气体检测系统的功能。使用带有集成互补金属氧化物半导体（CMOS）图像传感器的阵列读取器实时提取阵列中染料的颜色变化。研发的气体检测系统使用阵列读取器成功检测到气体，它使用CMOS图像传感器实时提供敏感颜色变化的数据。由于开发的传感器高度灵敏且价格便宜，因此该机制可在工业上用于检测有毒气体。