Developments of a two dimensional pH sensor and its visualization method for in situ measurements in aquatic environments.

为了可视化沉积物-水界面 (SWI) 的 pH 分布，开发了二维 pH 传感器。传感器箔由固定在粘合剂中的α-萘酚酞和四苯基卟啉制成。使用新开发的自动图像采集系统和传感器箔，获得了水族箱中 SWI 的半定量 pH 图像。针对传感器的深海应用，开发了pH（或O_2）分析系统。该系统在巡航中进行了评估，并确认了部署期间的稳定性。

In order to visualize pH distributions at sediment-water interface (SWI), two-dimensional pH sensor was developed. The sensor foil was fabricated alpha-Naphtholphthalein and Tetraphenylporphyrin immobilizing into a binder. Using with newly developed automatic image acquisition system and the sensor foil, semi-quantified pH image across SWI in an aquarium was obtained. For deep-sea application of the sensor, pH (or O_2) profiling system was developed. This system was evaluated at the cruise and the stability during the deployment was confirmed.