Development of the mathematical model of light flux intensity sensor based on the photodiode and operational amplifier | Zendy

Владимир Юрьевич Кучерук | Zendy; Павло Ігорович Кулаков | Zendy; Yu. O. Moskvichova | Zendy; Н. Г. Гаджула | Zendy; P. Kissabekova | Zendy; A. Kulakova | Zendy; D. Karabekova | Zendy; A. Khassenov | Zendy

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Development of the mathematical model of light flux intensity sensor based on the photodiode and operational amplifier

Author(s) -

Владимир Юрьевич Кучерук,

Павло Ігорович Кулаков,

Yu. O. Moskvichova,

Н. Г. Гаджула,

P. Kissabekova,

A. Kulakova,

D. Karabekova,

A. Khassenov

Publication year - 2020

Publication title -

bulletin of the karaganda university physics series

Language(s) - English

Resource type - Journals

eISSN - 2663-5089

pISSN - 2518-7198

DOI - 10.31489/2020ph1/50-57

Subject(s) - photodiode , light intensity , interpolation (computer graphics) , amplifier , operational amplifier , optics , radiant intensity , intensity (physics) , wavelength , physics , electronic engineering , computer science , radiation , optoelectronics , engineering , telecommunications , cmos , frame (networking)

The article describes a method for interpolating the dependence of the photodiode relative spectral sensitivity on the optical radiation wavelength using a special function that provides interpolation of the experimental dependence with any asymmetry coefficient. A new version of the light flux intensity sensor mathematical model based on a photodiode and an operational amplifier using the proposed interpolation technique has been created. It was found that the interpolation error does not exceed 3–6 %, depending on the type of photodiode and the shape of its experimentally obtained spectral characteristic. The processes occurring in the equivalent circuit of the measuring channel based on the operational amplifier are analyzed. The created mathematical model can be applied to optimize the processes in the measuring channel of the light flux intensity. The research results presented in the article can be used in the design and mathematical modeling of light flux intensity sensors for the needs of various fields of science, industry and medicine.

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