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US 12,540,857 B2Granted
Ultraviolet sensing assembly
OwnerAngel Gonzalez Lizardo, Felix A. Cuadrado +2inventors
InventorsAngel Gonzalez Lizardo, Felix A. Cuadrado, Steven L. Velez Sonera, Ernesto Ulloa Davila
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Abstract
A device that uses a UV sensing element capable of converting photons from a high temperature thermal source, to an electrical current. Such current is then compared with the theoretical current to be obtained from a source with the dimensions of the actual source. The theoretical current is obtained by integrating.
Claims1
An ultraviolet sensing assembly for performing non-contact temperature measurements, comprising:
- a detector comprising a photodiode and a resistor;
- an analog-to-digital converter;
- a micro-controller;
- and
- a digital display;
- wherein the detector, the analog-to-digital converter, and the digital display are functionally connected to the micro-controller;
- wherein the detector is adapted to detect photons from ultraviolet radiation emitted from a high-temperature thermal source and to convert said photons from the high-temperature thermal source, via the photodiode, into a current of electrons that produces a corresponding analog voltage signal across the resistor;
- wherein the analog-to-digital converter is adapted to receive the analog voltage signal corresponding to the current of electrons from the detector and to convert the received analog voltage signal into a digital signal;
- wherein the micro-controller is adapted to receive the digital signal;
- wherein, by means of the following equation:
- i
- =
- ∫
- λ
- min
- λ
- max
- 2
-
- hc
- 2
- λ
- 5
-
- 1
- e
- hc
- λ
-
- kT
- -
- 1
-
- 4
-
- π
-
- r
- d
- 2
-
- A
- x
- 2
-
- e
- -
- α
-
- x
-
- ℛ
-
- (
- λ
- )
-
- d
-
- λ
- the micro-controller is adapted to integrate the current of electrons to calculate a value for the temperature of the high-temperature thermal source;
- and
- wherein the display is adapted to display the temperature of the high-temperature thermal source.
60 more elements
Dependencies are inferred from the claim text.