光学传感器辅助氧气消耗法监测文物保存状况的研究进展

Research progress in the optical sensor-assisted oxygen consumption method for monitoring the preservation state of cultural relics

通过测量氧气消耗量可以完全无损地检查考古文物的稳定性,氧气的快速消耗说明样品状态不稳定。本工作综述了光学传感器辅助氧气消耗法的基本原理、影响因素、应用范围和适用对象。利用氧气的荧光猝灭性实现光学传感法监测氧气浓度。依靠光学传感的氧气消耗法可以快速、有效、准确地测量出文物样品的氧气消耗速率,对评估文物保存状态有重要意义。其监测系统会受相对湿度、温度、压力、光照等环境因素的影响。该方法根据文物样品的大小和形貌选择合适的监测体系,可以实现对所有氧气消耗反应的监测,具备更好的便携性和普适性。因此光学传感器辅助氧气消耗法可用于评估保护材料和保护手段的有效性。

The stability of archaeological relics can be completely non-destructively checked by measuring oxygen consumption.The rapid consumption of oxygen indicates an unstable state of a sample.In this work,the basic principle,influencing factors,scope of application and applicable objects of the optical sensor-assisted oxygen consumption method are summarized.The measurement of oxygen concentration by optical sensing is based on the fluorescence quenching of oxygen.This method can quickly and accurately reflect the oxygen consumption rate of archaeological relics,showing great significance for evaluating the preservation state of cultural relics.The monitoring system is affected by such factors as the relative humidity,temperature,atmospheric pressure and light.Appropriate monitoring systems are selected according to the size and morphology of cultural relic samples to monitor all the oxygen consumption reactions,so this method has greater portability and general applicability.Therefore,the optical sensor-assisted oxygen consumption method can be used to evaluate the effectiveness of conservation materials and measures.