Self-referenced technology for refractive index measurement under mechanical vibration and temperature fluctuation

Guo Wenping; Li Renjie; Yu Long; Chen Junyao; Xia Min; Li Wei; Yang Kecheng

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Self-referenced technology for refractive index measurement under mechanical vibration and temperature fluctuation

机译：机械振动和温度波动下的折射率测量自引用技术

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A novel critical angle refractometer with self-referenced performance (SRCAR) under mechanical vibration and temperature fluctuation is presented. In a traditional CAR, mechanical vibrations and temperature fluctuations always exist and cause errors. To reduce these errors, a CAR is redesigned by introducing a reference glass with a known refractive index so that an exact calibration curve can always be determined, even though intense mechanical vibrations exist. To verify the insensitivity to these vibrations, the refractive index is monitored while the peak acceleration of the vibration is approximately 14 m/s(2). The SRCAR is also used to measure a sample under different temperatures to verify the insensitivity to temperature fluctuations. Experimental measurements show that the SRCAR has the ability to lower the influences of vibrations as well as temperature fluctuations and retain a high precision of 2.5 x 10(-4) refractive index units (RIU). (C) 2019 Optical Society of America

机译：提出了一种新的机械振动和温度波动下具有自参考性能（SRCAR）的新型临界角折射计。在传统的汽车中，机械振动和温度波动总是存在并导致错误。为了减少这些误差，通过引入具有已知折射率的参考玻璃来重新设计汽车，使得即使存在强烈的机械振动，始终可以确定精确的校准曲线。为了验证对这些振动的不敏感，在振动的峰值加速度约为14m / s（2）时监测折射率。 SRCAR还用于测量不同温度下的样品，以验证对温度波动的不敏感性。实验测量表明，SRCAR能够降低振动的影响以及温度波动，并保留高精度为2.5×10（4）折射率单位（RIU）。（c）2019年光学学会

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《Applied optics》 |2019年第7期|共6页
作者
Guo Wenping; Li Renjie; Yu Long; Chen Junyao; Xia Min; Li Wei; Yang Kecheng;
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作者单位

Huazhong Univ Sci &

Technol Sch Opt &

Elect Informat Wuhan 430074 Hubei Peoples R China;

Huazhong Univ Sci &

Technol Sch Opt &

Elect Informat Wuhan 430074 Hubei Peoples R China;

Huazhong Univ Sci &

Technol Sch Opt &

Elect Informat Wuhan 430074 Hubei Peoples R China;

Huazhong Univ Sci &

Technol Sch Opt &

Elect Informat Wuhan 430074 Hubei Peoples R China;

Huazhong Univ Sci &

Technol Sch Opt &

Elect Informat Wuhan 430074 Hubei Peoples R China;

Huazhong Univ Sci &

Technol Sch Opt &

Elect Informat Wuhan 430074 Hubei Peoples R China;

Huazhong Univ Sci &

Technol Sch Opt &

Elect Informat Wuhan 430074 Hubei Peoples R China;

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Self-referenced technology for refractive index measurement under mechanical vibration and temperature fluctuation

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