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High-Temperature Fiber-Optic Vibration Sensor Based on an Atomic Frequency Standard
ACS Photonics ( IF 6.5 ) Pub Date : 2024-08-22 , DOI: 10.1021/acsphotonics.4c00885 Shengjie Cao 1 , Jiandong Bai 1 , Yongqiu Zheng 1 , Haoyan Chai 1 , Xiaoyu Gao 1 , Chenyang Xue 1
ACS Photonics ( IF 6.5 ) Pub Date : 2024-08-22 , DOI: 10.1021/acsphotonics.4c00885 Shengjie Cao 1 , Jiandong Bai 1 , Yongqiu Zheng 1 , Haoyan Chai 1 , Xiaoyu Gao 1 , Chenyang Xue 1
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As a vibration signal acquisition device, the vibration sensor has important application prospects in aerospace, industrial manufacturing, and other fields. The traditional electrical vibration sensor is limited by its material and sensitive mechanism and has some bottleneck problems, such as poor anti-electromagnetic interference ability, poor temperature resistance, and inability to self-calibrate. Here, we report a high-temperature self-calibration fiber-optic vibration sensor based on an atomic frequency standard system for the first time. The absolute stability of the transition frequency between atomic states ensures the accuracy and effectiveness of the acceleration measurement under extreme conditions. The sensor is based on the Fabry–Pérot interference principle utilizing a sapphire material for the sensitive structure and enclosed in a high-reliability and rigid stainless-steel package for protection. The experimental results show that it operates at temperatures up to 600 °C with a sensitivity of 38.66 nm/g and a characteristic frequency of 2446 Hz. This work provides a new approach to improve the accuracy of fiber-optic sensing under harsh, on-site testing conditions.
中文翻译：
基于原子频率标准的高温光纤振动传感器
振动传感器作为振动信号采集装置，在航空航天、工业制造等领域具有重要的应用前景。传统的电振动传感器受其材料和敏感机理的限制，存在抗电磁干扰能力差、耐温性能差、无法自校准等瓶颈问题。在此，我们首次报道了一种基于原子频率标准系统的高温自校准光纤振动传感器。原子态间跃迁频率的绝对稳定保证了极端条件下加速度测量的准确性和有效性。该传感器基于法布里-珀罗干涉原理，采用蓝宝石材料作为敏感结构，并封装在高可靠性、坚固的不锈钢封装中以提供保护。实验结果表明，它的工作温度高达600°C，灵敏度为38.66 nm/g，特征频率为2446 Hz。这项工作提供了一种在恶劣的现场测试条件下提高光纤传感精度的新方法。
更新日期：2024-08-22
中文翻译：
基于原子频率标准的高温光纤振动传感器
振动传感器作为振动信号采集装置，在航空航天、工业制造等领域具有重要的应用前景。传统的电振动传感器受其材料和敏感机理的限制，存在抗电磁干扰能力差、耐温性能差、无法自校准等瓶颈问题。在此，我们首次报道了一种基于原子频率标准系统的高温自校准光纤振动传感器。原子态间跃迁频率的绝对稳定保证了极端条件下加速度测量的准确性和有效性。该传感器基于法布里-珀罗干涉原理，采用蓝宝石材料作为敏感结构，并封装在高可靠性、坚固的不锈钢封装中以提供保护。实验结果表明，它的工作温度高达600°C，灵敏度为38.66 nm/g，特征频率为2446 Hz。这项工作提供了一种在恶劣的现场测试条件下提高光纤传感精度的新方法。
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