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 -
500 views
Technical Discussions
Ed Ginzel
R & D, -
Materials Research Institute, Canada, Joined Nov 1998, 1285

Ed Ginzel

R & D, -
Materials Research Institute,
Canada,
Joined Nov 1998
1285
03:50 Jan-14-1999
CW pulsers

I would like to carry out some research using continuous waves but continuous wave pulsers are a rare item these days.
There used to be a unit made by ARULABs, the ARULAB Model PG650 pulsed oscillator, but it is no longer available.
Does anyone know where I could get a used PG650? (it could be tuned between 0.5 to 25MHz and voltage was selectable from 0 to 2000Volts)

Are there similar options made by anyone? or are there any other practical options I can consider?

Thanks
Ed


 
 Reply 
 
Wieslaw Bicz
Engineering,
PBP Optel sp. z o.o., Poland, Joined Feb 2009, 265

Wieslaw Bicz

Engineering,
PBP Optel sp. z o.o.,
Poland,
Joined Feb 2009
265
04:23 Jan-14-1999
Re: CW pulsers
: I would like to carry out some research using continuous waves but continuous wave pulsers are a rare item these days.
: There used to be a unit made by ARULABs, the ARULAB Model PG650 pulsed oscillator, but it is no longer available.
: Does anyone know where I could get a used PG650? (it could be tuned between 0.5 to 25MHz and voltage was selectable from 0 to 2000Volts)

: Are there similar options made by anyone? or are there any other practical options I can consider?

: Thanks
: Ed

I think, we can do such a device for you, please specify your needs. It
is not a standard product of us, but we have made some such devices for
special purposes and have enough experience. Tell us, how large should
be a power on the output and the impedance of the transducers you want
to use.


Wieslaw Bicz




 
 Reply 
 
Richard Freemantle
Richard Freemantle
04:35 Jan-14-1999
Re: CW pulsers
: I would like to carry out some research using continuous waves but continuous wave pulsers are a rare item these days.
: There used to be a unit made by ARULABs, the ARULAB Model PG650 pulsed oscillator, but it is no longer available.
: Does anyone know where I could get a used PG650? (it could be tuned between 0.5 to 25MHz and voltage was selectable from 0 to 2000Volts)

: Are there similar options made by anyone? or are there any other practical options I can consider?

: Thanks
: Ed

Dear Ed,

We used to do some work with gated tone bursts for Lamb wave excitation. We employed an arbitrary function
generator and amplified the signals with some wideband power amps. The function generator could also be used to
generate continuous wave signals. The kit was quite old but you might be able to track down something similar.

The function generator was a LeCroy 9100, it could clock out signals with a max rate of 200 MHz and could hold up to a 32K
point waveform. It could also be programmed as a sine wave frequency generator with a frequency range of 0.05 Hz to 200 MHz.
The waveform output level was variable up to about 10 Volts.

The power amps were two Research Communications 9045 power amps (MOSFET I think) with a gain of about 20 dB each. I think these gave
a max output of about 50 Volts.

Hope this helps,

Regards,

Richard Freemantle


 
 Reply 
 

Product Spotlight

A1525 SOLO

A1525 Solo – the most compact and affordable TMF unit with two phased array transducers and 3D v
...
isualization and analysis software in standard delivery set. A compact, ergonomic and easy to handheld Phased Array unit based on Total Focusing Method for easy-going imaging of inspection objects with two-dimensional and three-dimensional visualization and evaluation of inspection results.
>

HD-CR 35 NDT Computed Radiography System

Portable high-resolution CR scanner for all radiography applications - weld testing, profile images
...
and aerospace. No matter what type of radiographic testing you are performing, the unique TreFoc Technology of the HD-CR 35 NDT imaging plate scanner always guarantees the highest image quality.
>

CIVA 2020 UT Module

CIVA NDE Simulation Software is the world leader of NDT Simulation. The UT simulation Module incl
...
udes: - "Beam computation": Beam propagation simulation - "Inspection Simulation": Beam interaction with flaws or specimens The user can simulate a whole inspection process (pulse echo, tandem or TOFD) with a wide range of probes (conventional, Phased- arrays or EMAT), components, and flaws.
>

NEW! The PragmaPro Instrument Platform

The PragmaPro is based on a modular cartridge technology and supports various NDT instrument modal
...
ities such as UT, PAUT, ECT and many more. This new platform is based on a machined, powder-coated aluminum frame for shock-proofness, best sealing qualities and maximum heat dissipation. This is practical to extend the outdoor temperature range and/or to extend the power injected in the transducers. The PragmaPro is aiming at a very wide range of applications, such as weld scanning, corrosion mapping and composite testing.
>

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