Photoacoustic sensor of Temperature with Linear-shaped light source

5th International Conference on Advances in Optoelectronics and Micro/Nano-optics

Peng, Yuanyuan^1 ; Wu, Shulian^1 ; Peng, Dongqing^1 ; Li, Zhifang^1 ; Li, Hui^1

Key Lab of OptoElectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Lab of Photonic Technology, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, FUJIAN

350007, China^1

关键词: Cylindrical lens;    Detector systems;    Linear relationships;    Photoacoustic sensors;    Photoacoustic signals;    Photoacoustic techniques;    Pressure amplitudes;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/680/1/012010/pdf
DOI  :  10.1088/1742-6596/680/1/012010

来源: IOP

【 摘 要 】

A method of temperature measurement based on photoacoustic technique with its noninvasive, real-time, high precision is a new type technology. A cylindrical lens was applied to improve the signal to noise ratio of the detector system in this paper. Then, the relation of photoacoustic signal and temperature were discussed, the corresponding image was obtained. The result indicated that the photoacoustic pressure amplitude presented a good linear relationship at temperature range from 20 °C to 50 °C. The study demonstrated that the photoacoustic temperature measurement approach is feasible.