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用于表征熔融石英圆柱谐振器动态行为的光学和电学方法

Optical and Electrical Method Characterizing the Dynamic Behavior of the Fused Silica Cylindrical Resonator.

作者信息

Qiu Zhinan, Qu Tianliang, Pan Yao, Jia Yonglei, Fan Zhenfang, Yang Kaiyong, Yuan Jie, Luo Hui

机构信息

College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China.

出版信息

Sensors (Basel). 2019 Jul 2;19(13):2928. doi: 10.3390/s19132928.

DOI:10.3390/s19132928
PMID:31269769
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6651340/
Abstract

Fused silica cylindrical resonant gyroscope (CRG) is a novel high-precision solid-wave gyroscope, whose performance is primarily determined by the cylindrical resonator's frequency split and quality factor (Q factor). The laser Doppler vibrometer (LDV) is extensively used to measure the dynamic behavior of fused silica cylindrical resonators. An electrical method was proposed to characterize the dynamic behavior of the cylindrical resonator to enhance the measurement efficiency and decrease the equipment cost. With the data acquisition system and the designed signal analysis program based on LabVIEW software, the dynamic behavior of the fused silica cylindrical resonator can be analyzed automatically and quickly. We compared all the electrical measurement results with the optical detection by LDV, demonstrating that the fast Fourier transform (FFT) result of the resonant frequency measured by the electrical method was 0.12 Hz higher than that with the optical method. Thus, the frequency split measured by the electrical and optical methods was the same in 0.18 Hz, and the measurement of the Q factor was basically the same in 730,000. We conducted all measurements under the same operation condition, and the optical method was used as a reference, demonstrating that the electrical method could characterize the dynamic behavior of the fused silica cylindrical resonator and enhance the measurement efficiency.

摘要

熔融石英圆柱谐振陀螺仪（CRG）是一种新型的高精度固体波陀螺仪，其性能主要由圆柱谐振器的频率分裂和品质因数（Q 因子）决定。激光多普勒振动计（LDV）被广泛用于测量熔融石英圆柱谐振器的动态行为。为了提高测量效率并降低设备成本，提出了一种电学方法来表征圆柱谐振器的动态行为。利用数据采集系统和基于 LabVIEW 软件设计的信号分析程序，可以自动快速地分析熔融石英圆柱谐振器的动态行为。我们将所有电学测量结果与 LDV 的光学检测结果进行了比较，结果表明，用电学方法测量的谐振频率的快速傅里叶变换（FFT）结果比光学方法高 0.12 Hz。因此，电学方法和光学方法测量的频率分裂在 0.18 Hz 内是相同的，Q 因子的测量结果在 730,000 基本相同。我们在相同的操作条件下进行了所有测量，并以光学方法作为参考，结果表明电学方法可以表征熔融石英圆柱谐振器的动态行为并提高测量效率。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/a74ec58e8501/sensors-19-02928-g012.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/8d5813cffba8/sensors-19-02928-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/835f3491f9c4/sensors-19-02928-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/a172d843cbd5/sensors-19-02928-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/a74ec58e8501/sensors-19-02928-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/4ba449986230/sensors-19-02928-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/b21c535bf775/sensors-19-02928-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/3e877ee8df2f/sensors-19-02928-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/6a886e107d81/sensors-19-02928-g004.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/8d5813cffba8/sensors-19-02928-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/835f3491f9c4/sensors-19-02928-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/d18c4051bfe7/sensors-19-02928-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/7e40ac7af000/sensors-19-02928-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/fd663d317833/sensors-19-02928-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/a172d843cbd5/sensors-19-02928-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c28f/6651340/a74ec58e8501/sensors-19-02928-g012.jpg

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Sensors (Basel). 2016 Jul 28;16(8):1185. doi: 10.3390/s16081185.
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