Wenzhou University

Haiyong Zhu

Yuxing Dai

Xiukai Ruan

Guihua Cui

Qibo Cai

Yaowu Liu

Ting Xu

Yaoju Zhang

Yanhua Tan

Yanmin Duan

Xinxin Jin

Wenbin Xie

Fei Wang

Xianxin Yang

Jinjin Chu

Zhihong Li

An optical fiber multi-parameter sensing system and method are provided. The optical fiber multi-parameter sensing system comprises a light source, an optical circulator, a fiber-tip probe sensor and an optical spectrum analyzer, wherein the fiber-tip probe sensor can be placed into an analyte without changing the characteristics of the analyte. The variation of a bulk parameter that is a bulk refractive index of bulk environment around the fiber-tip probe sensor and a surface parameter which is a thickness of surface dielectric layer of the fiber-tip probe sensor can be determined simultaneously by monitoring the changing of resonance intensity and resonance wavelength of a single fiber-tip leaky mode resonance. The sensing system optionally configured such that multiple parameters in the analyte around the fiber-tip probe sensor can be obtained by detecting a single resonance peak.

Optical fiber multi-parameter sensing system and method

An LED lighting based multispectral imaging system for color measurement is provided, including a main control computer and an enclosed type lamp box, where a digital camera is provided at the top of the lamp box, and an LED lamp set control apparatus, a drawer type bearing platform, and an LED lamp set are provided at the bottom of the lamp box. A to-be-measured object is placed on the drawer type bearing platform. The main control computer controls spectral power distribution of the LED lamp set to be in a reciprocal relationship with a spectral sensitivity curve of the digital camera and extracts a camera response and performs calculation, to obtain spectral reflectivity of each pixel of the to-be-measured object.

LED lighting based multispectral imaging system for color measurement

Growing community of inventors

Wenzhou, China

Haiyong Zhu