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首页> 《中国测试》期刊 >本期导读>光纤陀螺标度因数与零偏测试及评价方法研究

光纤陀螺标度因数与零偏测试及评价方法研究

3554    2017-01-12

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作者:张龙, 叶松, 周树道, 王晓蕾, 刘凤

作者单位:解放军理工大学气象海洋学院, 江苏 南京 211101


关键词:干涉型光纤陀螺;标度因数;标度因数非线性度;零偏;零偏稳定性;可比性


摘要:

为对舰船航姿测量系统应用背景下不同型号干涉型光纤陀螺(IFOG)的性能优劣做出准确评价,在[-35/s,35/s]角速度范围和100 Hz数据采样频率下,对两种型号的IFOG进行标度因数和零偏测试,并对其参数测试和性能评价方法进行研究。结果表明:在[-35/s,35/s]角速度范围内,B-215型IFOG的标度因数非线性度(剔除20/s奇异角速度点)优于KVH-13型,且两种IFOG在该范围内的标度因数非线性度均大于其在全量程范围内的标度因数非线性度;在100 Hz采样频率下,KVH-13型IFOG的零偏稳定性优于B-215型,且B-215型IFOG在该频率下的零偏稳定性优于其在2000 Hz下的零偏稳定性。该测试方法可得出在特定测量范围和采样频率下IFOG的性能参数,有助于提高不同型号IFOG产品的可比性,为实际应用中IFOG的选型提供依据。


Study on the methods for test and evaluation of FOG's scale factor and bias

ZHANG Long, YE Song, ZHOU Shudao, WANG Xiaolei, LIU Feng

College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101, China

Abstract: In order to have an accurate evaluation on the performance of different types of interferometric fiber optic gyro(IFOG) used for the attitude and heading reference system(AHRS), the scale factor and bias test were implemented for two types of IFOG within the angular velocity range of[-35°/s, 35°/s] and data sampling frequency of 100 Hz, and the methods for parameter test and performance evaluation were also researched. The results showed that the scale factor nonlinearity of B-215 type IFOG which eliminated the singularities at ±20% was superior to KVH-13 type IFOG within the angular velocity range of[-35°/s, 35°/s], and the scale factor nonlinearity of the two kinds of IFOG within the range was greater than that within the whole measuring range. However, the bias stability of KVH-13 type IFOG was superior to that of B-215 type IFOG under the sampling frequency of 100 Hz and the bias stability of B-215 type IFOG under the frequency was superior to its bias stability under the sampling frequency of 2 000 Hz. In conclusion, the test method can be used to obtain the performance parameters of IFOG under the specific measuring range and sampling frequency and it is conducive to improve the comparability of different types of IFOG products, which provide basis for model section of IFOG in practical application.

Keywords: interferometric fiber optic gyro;scale factor;scale factor nonlinearity;bias;bias stability;comparability

2016, 42(12): 1-7  收稿日期: 2016-04-10;收到修改稿日期: 2016-06-05

基金项目: 国家自然科学基金(40976062,41406107);江苏省自然科学基金(BK2009062)

作者简介: 张龙(1992-),男,山东潍坊市人,硕士研究生,专业方向为测试计量技术及仪器。

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