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 -

308 views
Technical Discussions
w_yi
R & D
Nang Yang Technological University, Singapore, Joined Sep 2001, 1

w_yi

R & D
Nang Yang Technological University,
Singapore,
Joined Sep 2001
1
04:55 Sep-27-2001
Help! How to design air ultrasonic transducer

Dear colleagues
Our project need to design air ultrasonic transducer( 50KHz, wide bandwidth). But I do not have experience of it. So need your help.
Do you know any book introduce the principle of making transducer and step by step teaching how to make a PZT transducer?
Or any material about it that can be download from web-site?

Thanks
Wang Yi


    
 
 
Dipl.-Ing. Martin Heinz
Dipl.-Ing. Martin Heinz
03:58 Oct-01-2001
Re: Help! How to design air ultrasonic transducer
: Dear colleagues
: Our project need to design air ultrasonic transducer( 50KHz, wide bandwidth). But I do not have experience of it. So need your help.
: Do you know any book introduce the principle of making transducer and step by step teaching how to make a PZT transducer?
: Or any material about it that can be download from web-site?
.
: Thanks
: Wang Yi

Dear Mr. Wang Yi,
at our page http://www.ibmt.fhg.de/ibmt3sensorfertigungsheets_e.html you will get some information about our range of high-bandwidth airborne ultrasonic transducers. If you will build up airborne transducers based on PZT you will receive either an high-sensitive smallband transducers (when the piezoceramic is used in banding mode) or a very insensitive broadband transducers with high electric impedance (when the piezoceramic is used in thickness mode and it is highly damped). Only whith specialized designs you can reach a sensitive AND broadband PZT-transducer.
Alternative technologies are using piezocomposite materials or using the electrostatic principle (POLAROID-transducer).
Our broadband PZT transducers are based on several special patents, thus we could offer you a project for matching this technology to the desired frequency of 50 kHz (which bandwidth do you need?).
For basic informations on ultrasonic transducer design see the standard book "Material Testing by Ultrasound" of Krautkrämer (Krautkramer).

Best regards,

Dipl.-Ing. Martin Heinz.



    
 
 

Product Spotlight

Robotic laser shearography enables 100% inspection of complex, flight-critical composite structures

An article in “Composites World Magazine” showcases Non Destructive Testing of aero-structures
...
with Laser Shearography. Over the years Dantec Dynamics has supplied many solutions for the aerospace industry. Referring to specific customer projects several of these cases are examined to outline the advantages of using Laser Shearography for automated defect detection.
>

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.
>

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
>

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
>

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