FIELD: physics.
SUBSTANCE: indicator unit contains ultrasonic generator, piezoceramic converter, narrow band optical filter, photosensitive device, electronic amplifier, indicators of dangerous gas critical concentration and independent supply unit. Output of ultrasonic generator is connected to input of piezoceramic converter. And output of photosensitive device is connected to input of electronic amplifier output of which is connected to input of dangerous gas indicator in gas mix.
EFFECT: higher indication reliability and efficiency.
4 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR COUNTERFEIT PROTECTION AND CONTROL OF VALUABLES AUTHENTICITY | 2007 |
|
RU2343546C2 |
| METHOD OF PROTECTION AGAINST FAKES AND CONTROL OF VALUABLE PRODUCTS AUTHENTICITY | 2007 |
|
RU2333535C1 |
| METHOD FOR VALUABLE ARTICLES COUNTERFEIT PROTECTION AND IDENTITY VERIFICATION | 2006 |
|
RU2380757C2 |
| METHOD FOR COUNTERFEIT PROTECTION AND AUTHENTICATION OF VALUABLES | 2006 |
|
RU2359328C2 |
| METHOD OF PROTECTION AGAINST FORGERY AND PRECIOUS ITEMS AUTHENTICITY CONTROL | 2007 |
|
RU2325700C1 |
| METHOD OF CONTROLLING SURFACE ROUGHNESS BASED ON EFFECT OF PHOTOLUMINESCENCE OF NANOPARTICLES | 2007 |
|
RU2374607C2 |
| METHOD OF COUNTERFEIT PROTECTION AND DETECTION OF VALUABLE ARTICLES IDENTITY | 2007 |
|
RU2343547C1 |
| METHOD OF FORMING NANOSIZED STRUCTURE FOR PROTECTION FROM FORGERY AND CHECKING AUTHENTICITY OF VALUABLE ARTICLES USING GIANT RAMAN SCATTERING EFFECT | 2008 |
|
RU2386173C2 |
| INTERFERENTIAL METHOD OF MEASUREMENT OF SURFACE MICRORELIEF ALTITUDE | 2007 |
|
RU2373494C2 |
| WAY OF PROTECTION AGAINST FAKES AND CONTROL OF AUTHENTICITY OF VALUABLE PRODUCTS | 2007 |
|
RU2343548C1 |
