where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -
307 views
Technical Discussions
Vasco Teixeira
R & D, coatings production and inspection, stress analysi
University of Minho - Physics Centre, Portugal, Joined Feb 2000, 3

Vasco Teixeira

R & D, coatings production and inspection, stress analysi
University of Minho - Physics Centre,
Portugal,
Joined Feb 2000
3
07:42 Mar-15-2000
Measurement very low emissivity in coatings and surfaces

Dear colleagues,

I am looking for a simple equipment that measures directly the surface emissivity of thin coatings deposited on glass, aluminium or copper. The application is for quality inspection
sputtered solar absorbers to be used in thermal collectors for water heating. At 100 degress celsius the emissivity is about 0.05. The epsilon range should be up to 0.5 or more. The IR wavelenght should be the correspondent of 100 degrees up to 500 or more.

Regards

Vasco



 
 Reply 
 

Product Spotlight

Teletest Focus+

Teletest Focus+ electronics have superior capabilities than rivals on the market. Beyond the usual
...
test features, Focus+ has 24 transmit channels and 24 receive channels, with an additional on-board switching capabilities. The instrument's frequency range is 10–300 kHz.
>

UCI Hardness Tester NOVOTEST T-U2

UCI hardness tester NOVOTEST T-U2 is is used for non-destructive hardness testing of: metals and
...
alloys by scales of hardness: Rockwell (HRC), Brinell (HB), Vickers (HV); non-ferrous metals, alloys of iron etc., and using five additional scales for calibration; with tensile strength (Rm) scale determines the tensile strength of carbon steel pearlitic products by automatic recalculation from Brinell (HB) hardness scale.
>

OmniScan™ X3 flaw detector

The OmniScan X3 flaw detector is a complete phased array toolbox. Powerful tools, like total focus
...
ing method (TFM) images and advanced visualization capabilities, enable you to complete your inspection with greater confidence.
>

SONOAIR - air-coupled Phased Array Ultrasonic Inspection System

For highly attenuating materials, the performance of the system is critical. The ultrasonic sensors,
...
the scanning area and the system settings should be flexibly adapted to the test task and the material. These high expectations are met with the new and modular testing system SONOAIR. With the world’s first air-coupled phased-array UT inspection system SONOAIR we developed a technology that works with up to 4 transmitter and receiver channels with freely configurable square wave burst transmitters as wells as low noise receiving amplifiers.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window