FIELD: mechanics, physics.
SUBSTANCE: device to excite electroluminescence consists of input unit connected in series with microprocessor unit, sinusoidal oscillation generator, amplitude-frequency response corrector, step-up transformer and exciting electrodes furnished with plates for the specimen to be placed there between. Note that the said exciting electrodes are optically coupled with the photo receiver connected with the ADC which, in its turn, is connected with the microprocessor unit. The latter is connected to the display unit and amplitude-frequency response corrector, while the sinusoidal oscillation generator is connected via a feedback loop with the microprocessor unit.
EFFECT: simpler design, smaller sizes, brightness correction in wide frequency range.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| IDENTIFICATION METHOD FOR VALUABLE ITEM WITH PROTECTION ELEMENT OF LUMINESCENT TYPE, PROTECTION ELEMENT, OPTIC ELECTRONICAL UNIT FOR PROTECTION ELEMENT IDENTIFICATION, COUNTERFEIT-PROTECTED MATERIAL AND COUNTERFEIT-PROTECTED VALUABLE DOCUMENT | 2007 |
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