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 -

TecScan Systems
We offer a complete line of NDT scanners, Immersion Tanks & Gantry systems which incorporate Ultrasonic, Phased Array & Eddy Current technologies.
460 views
Technical Discussions
Louis
Louis
03:58 Apr-08-2006
Depth reading

Hi everyone,

Here is my probleme,

I have a plate of 1.5 in. At 0,750in I have a hole of 0,062in.
With my USN58L I can know the distance from my transducer, the sound path and the depth of this 0.062in hole.

But, when I move my transducer to Leg 2 with this same hole I still get the good distance from my transducer and also the good sound path, but the depth reading is 3.18in instead of 0,750in. I use a 45 deg. angle transducer and the thickness of the plate on my machine is set at 1.750in.

Is it possible that my machine can't give me the depth after Leg 1 and that I always have to use formulas.

Thanks a lot,

LouisB



    
 
 Reply 
 
Ed
Ed
06:25 Apr-09-2006
Re: Depth reading
----------- Start Original Message -----------
: Hi everyone,
: Here is my probleme,
: I have a plate of 1.5 in. At 0,750in I have a hole of 0,062in.
: With my USN58L I can know the distance from my transducer, the sound path and the depth of this 0.062in hole.
: But, when I move my transducer to Leg 2 with this same hole I still get the good distance from my transducer and also the good sound path, but the depth reading is 3.18in instead of 0,750in. I use a 45 deg. angle transducer and the thickness of the plate on my machine is set at 1.750in.
: Is it possible that my machine can't give me the depth after Leg 1 and that I always have to use formulas.
: Thanks a lot,
: LouisB
------------ End Original Message ------------

I don't believe the machine is incapable of calculating it. Try setting the thickness of the block at 1.5" as you stated it was and not 1.75". You may also want to check the actual angle in the material. Last but not least make sure you have the correct velocity entered in the machine. Then lastest but not leastest, make sure you are looking at the correct reflector and not an inclusion in the block. Did you try to plot the hole on the second leg?



    
 
 Reply 
 
Nigel
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
08:20 Apr-09-2006
Re: Depth reading
Louis

3.18" is the beam path skip distance to the hole (1.5 + 0.75)/cos 45 and you say that you get this distance as the "good sound path" which should be just that - 3.18". The fact that your machine is giving this figure as the depth of the hole cannot be mere coincidence, thus somehow the machine must have been set to give the beam path distance as the depth (maybe through a gate).

For a new and expensive piece of kit the sales rep or tech services of the supplier should assist in untangling your problem.

Good luck

Nigel

----------- Start Original Message -----------
: Hi everyone,
: Here is my probleme,
: I have a plate of 1.5 in. At 0,750in I have a hole of 0,062in.
: With my USN58L I can know the distance from my transducer, the sound path and the depth of this 0.062in hole.
: But, when I move my transducer to Leg 2 with this same hole I still get the good distance from my transducer and also the good sound path, but the depth reading is 3.18in instead of 0,750in. I use a 45 deg. angle transducer and the thickness of the plate on my machine is set at 1.750in.
: Is it possible that my machine can't give me the depth after Leg 1 and that I always have to use formulas.
: Thanks a lot,
: LouisB
------------ End Original Message ------------




    
 
 Reply 
 

Product Spotlight

SITEX CPSERIES

Teledyne ICM’s CPSERIES has been designed with a view to revolutionizing the handling and perfor
...
mances of portable X-Ray sets. Despite having managed to halve the weight of similar portable X-Ray generators available on the market (while continuing to provide the same power output), the SITEX CPSERIES generators feature a shutter, a laser pointer, a beryllium window, an aluminum filter and two integrated diaphragms (customized sizes are available upon request). Without compromising the robustness and reliability for which ICM products are renowned, the small size and light weight of the SITEX CPSERIES will radically change the way that you perform your RT inspections. And you will see a positive impact in terms of both quality and return on investment (ROI).
>

CIVA 2017 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.
>

Cygnus 6+ PRO Multi-Mode Ultrasonic Thickness Gauge

The Cygnus 6+ PRO thickness gauge is the most advance gauge within the Cygnus range with key featu
...
res including: comprehensive data logging; A-scan and B-scan display; manual gain control; Bluetooth connectivity; and much more. With its unique dual display and three measuring modes (Multiple-Echo, Echo-Echo and Single-Echo), this surface thickness gauge offers maximum versatility for inspections.
>

Research Center IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque Research centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system f
...
or the train wheel. This system secures a sound condition of train wheels and is thus a significant contribution to rail transport safety. The device was delivered to CAF recently and its use allows the manufacturer to become an approved supplier of rolling stock in Italy, as it meets the demanding homologation standards of this country. \\\\r\\\\n
>

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