arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.12629eess.SPcs.LG
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光学氧传感与人工智能

Optical oxygen sensing with artificial intelligence

TOELT LLC(TOELT有限责任公司);Zurich University of Applied Sciences(苏黎世应用科学大学)

Umberto Michelucci, Michael Baumgartner, Francesca Venturini

摘要:

用于测量氧浓度的基于发光的传感器由于这种类型的感测的实际优点和灵敏度而广泛用于工业和研究两者。其测量原理是氧分子对发光的猝灭,导致发光衰减时间和强度的变化。在经典方法中,使用Stern-Volmer方程将该变化与氧浓度相关。该方程在大多数情况下是非线性的,通过特定于设备的常数进行参数化。因此,为了确定这些参数,每个传感器需要在一个或多个已知浓度下精确校准。这项工作探索了一种全新的人工智能方法,并证明了通过机器学习进行氧气传感的可行性。专门开发的神经网络非常有效地学习将输入量与氧气浓度相关联。结果显示,与许多商业和低成本传感器相比,0.5%空气的预测浓度与测量浓度的平均偏差。由于该网络是使用合成生成的数据进行训练的,因此模型预测的准确性受到生成数据描述测量数据的能力的限制,从而为未来通过使用大量实验测量进行训练来进行重大改进开辟了可能性。在这项工作中描述的方法证明了人工智能传感器的适用性。

英文摘要:

Luminescence-based sensors for measuring oxygen concentration are widely used both in industry and research due to the practical advantages and sensitivity of this type of sensing. The measuring principle is the luminescence quenching by oxygen molecules, which results in a change of the luminescence decay time and intensity. In the classical approach, this change is related to an oxygen concentration using the Stern-Volmer equation. This equation, which in most of the cases is non-linear, is parametrized through device-specific constants. Therefore, to determine these parameters every sensor needs to be precisely calibrated at one or more known concentrations. This work explores an entirely new artificial intelligence approach and demonstrates the feasibility of oxygen sensing through machine learning. The specifically developed neural network learns very efficiently to relate the input quantities to the oxygen concentration. The results show a mean deviation of the predicted from the measured concentration of 0.5 percent air, comparable to many commercial and low-cost sensors. Since the network was trained using synthetically generated data, the accuracy of the model predictions is limited by the ability of the generated data to describe the measured data, opening up future possibilities for significant improvement by using a large number of experimental measurements for training. The approach described in this work demonstrates the applicability of artificial intelligence to sensing of sensors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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