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 -
495 views
Technical Discussions
Chris Moon
Chris Moon
15:05 Jan-08-2010
Sylvania Par 38 Brightness Question

I have noticed over the last couple of years that the brightness of the Sylvania Par38 bulbs are not giving me as much output as a few years ago. I have checked and changed the black light filter, and it did not help. If I recall correctly, a few years ago I was getting somewhere in the neighborhood of 5000 uw/cm^2. Now I am getting about 2300-2500 uw/cm^2. Anyone experiencing this same issue? Thanks in advance for any ideas/input.

 
 Reply 
 
Jean-Claude Schwartz
Jean-Claude Schwartz
16:37 Jan-08-2010
Re: Sylvania Par 38 Brightness Question
In Reply to Chris Moon at 15:05 Jan-08-2010 (Opening).

Hello Chris,

As far as I'm aware, this is the case with most bulbs. We have used Sylvania (halogen & mercury vapour) in the past. We seem to have a life expectancy anywhere from 6 months to 3 years (depending on frequency of use/ and abuse!).
A good idea would be to have control check sheets. The lamp can be measured during each working day os shift and would show you an eventual trend, eg the last bulb we bought (Labino) was measured at 9'000 uw/cm2 (in 2008), this is now at 7'600.
Hope this helps.

 
 Reply 
 
Chris Moon
Chris Moon
18:35 Jan-08-2010
Re: Sylvania Par 38 Brightness Question
In Reply to Jean-Claude Schwartz at 16:37 Jan-08-2010 .

Jean-Claude,

I forgot to specify, that even the new bulbs in the box are lacking the intensity they used to have several years ago out of the box. I didnt know if they have changed the composition or the manufacturing process of the bulbs. Any ideas?

 
 Reply 
 
Michel Couture
Michel Couture
21:05 Jan-08-2010
Re: Sylvania Par 38 Brightness Question
In Reply to Chris Moon at 18:35 Jan-08-2010 .

Chris,

It may not be related, but I had a similaar experience years ago with a mag bench. With time, we had difficulties seeing the required numbers of SDH on the Ketos ring. We ended up opening the machine, cleaning it up and retightening all the wires and cables. This made a difference and got our bench back to specs.

Maybe you should take a look at the contacts and wires of your black light.

Just a suggestion.

 
 Reply 
 

Product Spotlight

NovaScope 6000

The all-digital Novascope 6000 is a portable, ultra-high precision thickness gauge for high-speed
...
thickness measurement. Novascope 6000 has unmatched capabilities and unique features including: •Superior Resolution with high contrast, high-speed color RF display •High pulser voltage •Real-time video output •Increased internal/external data storage •Programmable SetUp features •Battery & AC Powered
>

Conformable wedge transducer

The conformability is obtained with a flexible membrane filled with water between the transducer and
...
the inspected component. The coupling between the membrane and the component requires a small quantity of water or couplant. The conformable wedge combines the acoustic performance of immersion technique with good coupling and low attenuation.
>

Lyft™: Pulsed Eddy Current Reinvented

PEC Reinvented—CUI Programs Redefined Corrosion under insulation (CUI) is possibly the greatest u
...
nresolved asset integrity problem in the industry. Current methods for measuring wall thickness with liftoff, without removing insulation, all have severe limitations. Eddyfi introduces Lyft — a reinvented, high-performance pulsed eddy current (PEC) solution. The patent- pending system features a state-of-the-art portable instrument, real- time C-scan imaging, fast data acquisition with grid-mapping and dynamic scanning modes, and flexibility with long cables. It can also scan through thick metal and insulation, as well as aluminum, stainless steel, and galvanized steel weather jackets. Who else but Eddyfi to reinvent an eddy current technique and redefine CUI programs. Got Lyft?
>

NDTkit RT

NDTkit RT, TESTIA's Digital Radiography software The NDTkit product line software for X-ray analysi
...
s. NDTkit RT is a software benefiting from the Ultis kernel which is dedicated to radiographic image analysis. It offers a set of tools and filtering processes to assist RT operators in finding relevant flaws.
>

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