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Image intensifier tubes (IITs) are vacuum tubes that amplify a low light-level image to observable levels. Image intensifier tubes are the most important modules of night vision devices that play crucial role in defense/security/industrial applications. Technology of manufacturing of image intensifier tubes is very difficult and performance parameters of modern IITs varies even within the same technological process. Next, test report offered by manufacturers cannot be fully trusted because there are some differences in test methods used by different manufactures. Further on, there are literature sources presenting conflicting claims of different manufacturers. It is quite common to find on the world market two night vision devices (or two image intensifier tubes) of the same data sheet parameters but of different image quality. Inverse situation is possible, too. Due to reasons mentioned above testing image intensifier tubes is of critical importance for both their manufacturers, manufacturers of night vision devices (NVDs) and final users of NVDs.
Testing of image intensifier tubes is typically done according to methods recommended by US MIL standards. These test methods refer to testing potted tubes after encapsulation. There are however some projects when more detail testing is needed using non-MILs methods or bare tubes before encapsulation are to be tested.
ITIP is the main Inframet station for testing image intensifier tubes. It is a quasi universal station that enables measurement imaging, photometric, electrical and temporal parameters of of image intensifier tubes. This new test station replaces old ITS-I, ITS-IP, ITS-P test stations manufactured until middle of 2017 year.
Fig.1 ITIP test station
Inframet offers also three additional test stations ITR, IPAS and IRAD. ITR station enables measurement of reliability parameters. IRAD and IPAS are two test stations developed for applications where detail testing of bare tubes is needed using non-MILs methods.
Fig.2. ITR test station
|Fig.3. IPAS test station||
Fig.4. IRAD test station
|The HVP14 power supply is a special high voltage power supply optimized for use in systems for testing bare image intensifier tubes. It is built as set of of four HV power modules: HVP-1 to power photocathode circuit, : HVP-2 to power MCP circuit, HVP-3 to power screen circuit, and HVP-4 – an option for some Gen3 tubes when voltages higher than 6000 V are needed. The HVP power supply differ significantly from typical laboratory high voltage power supplies. The HVP power modules can be connected into a cascade. Flexible grounding (any output socket of any power supply can be grounde is possible, too. Next, the voltage regulation ranges are optimized for testing bare image intensifier tubes.||
HVP14 high voltage power supply
Inframet is the top world leader in equipment for testing image intensifier tubes. A series of well known manufacturers of II tubes or manufacturers of night vision devices use Inframet test stations to improve quality control of their products. Other important group of our customers are scientific institutes doing research in field of image intensifier tubes.
- Scientific paper ->Review of night vision technology (sample part)
- Scientific paper -> Computerized station for testing image intensifier tubes
- Educational section
- Manual of Nightmet simulator
- Nightmet simulator
If you have further questions please contact us.
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