This experiment reports the fabrication of the Polymethyl Methaclyrate (PMMA) Microball Resonator (MBlR) as a liquid sensor tested on various level of concentration of the Formaldedhye liquid. The PMMA MBlR is fabricated via the “dipped and twirl” method to create the sphere-shaped ball with diameter Db = 320um. The MBlR is then optically excited using a 9 μm PMMA microfiber and was found to have a Q Factor of >10⁴. The MBlR was then employed as a liquid sensor with the level percentage range between 0%–4% of Formaldehyde liquid and the performance is compared with a non MBlR microfiber. The MBlR sensor was found to have a sensitivity of 6.94 dB m/%, linearity >90 % and P-value of more than 10⁵. The PMMA MBlR liquid sensor was also found to have a good repeatability and stability over a period of 60 s.

该实验报告了作为液体传感器的聚甲基丙烯酸甲酯（PMMA）微球共振器（MBlR）的制造，该液体传感器在各种甲醛浓度下进行了测试。PMMA MBlR通过“浸涂和旋转”方法制造，以创建直径Db = 320um的球形球。然后使用9μmPMMA超细纤维对MBlR进行光学激发，发现其Q因子> 10 ⁴。然后将MBlR用作液体传感器，其水平百分比范围为甲醛液体的0％–4％，并将性能与非MBlR超细纤维进行比较。发现MBlR传感器的灵敏度为6.94 dB m /％，线性度> 90％，P值大于10 ⁵。还发现PMMA MBlR液体传感器在60 s的时间内具有良好的重复性和稳定性。