Patent ID: 11879835
Assignee: KING FAISAL UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A hand-held portable toxic element detection system, the system comprising:
a housing comprising a first portion, a second portion, and a third portion, the second portion being located between the first portion and the third portion of the housing, and the first portion, the second portion, and the third portion of the housing each have a top surface and a bottom surface;
an on/off button located on the top surface of the first portion of the housing;
a scan switch located on the bottom surface of the first portion of the housing;
a speaker located on the top surface of the second portion of the housing;
a LCD screen and a plurality of LED light indicators located on the top surface of the third portion of the housing;
an UV-VIS LED illuminator and a frinGOe interferometer located on the bottom surface of the third portion of the housing, wherein the UV-VIS LED illuminator is configured to emit UV light as incident light onto a sample and wherein the frinGOe interferometer is configured to capture a portion of the incident light being reflected from the sample as reflected light and convert the reflected light to an interferogram spectrum;
a camera disposed within the housing configured to collect the interferogram spectrum; and
a microcontroller and a RAM database memory disposed within the housing, wherein the microcontroller is configured to be in communication with the camera, RAM database memory, speaker, LCD screen, UV-VIS LED illuminator, and frinGOe interferometer;

wherein the microcontroller is configured to:
retrieve the interferogram spectrum from the camera;
transform the interferogram spectrum to an absorption wavelength spectrum using Fourier transformation, wherein the absorption wavelength spectrum comprises an absorption peak wavelength spectrum and an absorption strength peak wavelength spectrum;
compare the absorption peak wavelength spectrum and the absorption strength peak wavelength spectrum with absorption peak wavelength spectrum and absorption strength peak wavelength spectrum data stored in the RAM database memory, wherein the stored absorption peak wavelength spectrum and the absorption strength peak wavelength spectrum data indicate presence of toxic chemicals and a corresponding level of toxicity respectively;

normalize the absorption strength peak wavelength spectrum according to the stored absorption strength peak wavelength spectrum data, wherein the normalization represents an amount of toxic chemicals in the sample;
compare the normalized absorption strength peak wavelength spectrum with stored allowable toxic chemical absorption strength peak wavelength thresholds;
send a visual and audio message indicating that the sample is safe to use to the LCD screen and the speaker, respectively, when the normalized absorption strength peak wavelength spectrum for the amount of all the toxic chemicals in the sample is less than the stored allowable toxic chemical absorption strength peak wavelength thresholds; and
send a visual and audio message indicating that the sample is not safe to use to the LCD screen and the speaker respectively when the normalized absorption strength peak wavelength spectrum for the amount of any one of the toxic chemicals in the sample is greater than the stored allowable toxic chemical absorption strength peak wavelength thresholds.