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 -

Eddyfi

474 views
Technical Discussions
R Martin
R Martin
00:01 May-03-2001
Immersion vs Contact Transducers

This may sound like a silly question, but what is the difference
between an immersion and contact transducer. Is it just the fact that the immersion probe is waterproof or is the construction different (wear plate, impedence matching)? Any
answers will be greatly appreciated.

Thank You

R. Martin


    
 
 
Paul Meyer
R & D,
GE Inspection Technologies, USA, Joined Nov 1998, 47

Paul Meyer

R & D,
GE Inspection Technologies,
USA,
Joined Nov 1998
47
00:47 May-03-2001
Re: Immersion vs Contact Transducers
It's not a silly question. Immersion transducers are normally housed to be used in scanning immersion systems and are also designed transmit into water. Contact transducers are often housed to be hand-held and also utilize abrasion resistent wearfaces. These are not absolutes. Delay line and angle beam transducers transmit into low impedance plastics and are more similar to immersion transducers than to contact transducers.
If you're in doubt about which design to use in a particular situation, talk to the marketing or applications people at your supplier.
I hope this helps.
Paul

: This may sound like a silly question, but what is the difference
: between an immersion and contact transducer. Is it just the fact that the immersion probe is waterproof or is the construction different (wear plate, impedence matching)? Any
: answers will be greatly appreciated.
.
: Thank You
.
: R. Martin
.



    
 
 

Product Spotlight

NEW - TD Focus-ScanRX

The NEW Next Generation Advanced UT platform, TD Focus ScanRX - Also available as a card stack solut
...
ion. Key Improvements 1. Data acquisition is significantly faster than current design 2. Better aesthetic – closely aligns with HandyScan RX 3. Improved IP rating (Target IP66) 4. Ruggedized housing 5. Connectors are protected from impact and ingress 6. Integrated stand and separate retractable handle easy to keep clean) 7. Touchscreen with ruggedized display glass 8. 3-Axis encoder input
>

ISAFE3 Intrinsically Safe Sensor System

ISAFE3 intrinsically safe sensor system of Vallen Systeme is especially targeted at the petrochemica
...
l - as well as oil and gas transportation industry. The sensor system is designed for permanent monitoring or periodic inspection tasks. Sensors are available for different AE-frequency ranges optimized for corrosion and fatigue crack detection and other applications. The ISAFE 3 sensor system consists of an AE-sensor (model ISAS3) certified according to ATEX/IEC for installation in zone 0, gas group IIC, IP68, 20 to +60 °C, and a signal isolator (model SISO3) certified for installation in zone 2. An ISAS3 sensor can be mounted in atmosphere or submerged, e.g. in water or crude oil. It is supported by mounting tools for temporary (magnets) or permanent (welded) installation. ISAFE3 supports automatic sensor coupling test and can be used with any AE signal processor supporting 28V supply at 90 mA peak, e.g. Vallen Systeme ASIP-2/A.
>

Ultrasonic Flaw Detector & Thickness Gauge: Smartor

SIUI’s newly launched Smartor is a combination of ultrasonic testing and ultrasonic thickness me
...
asurement. ●IP 66 ●Compact size: 198 (W)* 128 (H) *520 (D) mm ●0.9kg only with battery ●5.7" LCD with high resolution 640×480 pixels ●One-hand operation ●Multiple conventional UT functions ●Smart Test Wizard ●Weld Simulation
>

I&T Nardoni

NDT, RESEARCH AND DEVELOPMENT OF NEW METHODOLOGY, TRAINING CENTER I&T NARDON INSTITUTE was idiated
...
in 1988 by Giuseppe Nardoni, now president and owner of the company, based on his multi-annual and international experience in the field of NDT.
>

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