twg-group-chennai

ULTRASONIC TESTING

 
Ultrasonic testing services in Chennai (UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse-waves with center frequencies ranging from 0.1-15 MHz, and occasionally up to 50 MHz, are transmitted into materials to detect internal flaws or to characterize materials. A common example is ultrasonic thickness measurement, which tests the thickness of the test object, for example, to monitor pipe work corrosion.

Ultrasonic testing is often performed on steel and other metals and alloys, though it can also be used on concrete, wood and composites, albeit with less resolution. It is used in many industries including steel and aluminum construction, metallurgy, manufacturing, aerospace, automotive and other transportation sectors.

In ultrasonic testing, an ultrasound transducer connected to a diagnostic machine is passed over the object being inspected. The transducer is typically separated from the test object by a couplant (such as oil) or by water, as in immersion testing. However, when ultrasonic testing is conducted with an Electromagnetic Acoustic Transducer (EMAT) the use of couplant is not required.

There are two methods of receiving the ultrasound waveform: reflection and attenuation. In reflection (or pulse-echo) mode, the transducer performs both the sending and the receiving of the pulsed waves as the "sound" is reflected back to the device. Reflected ultrasound comes from an interface, such as the back wall of the object or from an imperfection within the object. The diagnostic machine displays these results in the form of a signal with an amplitude representing the intensity of the reflection and the distance, representing the arrival time of the reflection. In attenuation (or through-transmission) mode, a transmitter sends ultrasound through one surface, and a separate receiver detects the amount that has reached it on another surface after traveling through the medium.

Imperfections or other conditions in the space between the transmitter and receiver reduce the amount of sound transmitted, thus revealing their presence. Using the couplant increases the efficiency of the process by reducing the losses in the ultrasonic wave energy due to separation between the surfaces.
 

FOR MORE DETAILS :

Cell : 93810 77677 / 76679 78887
Email : twggroupchennai@gmail.com

CONTACT ADDRESS :

CHENNAI BRANCH

no.5, boopathy street, virugambakkam,
virugambakkam - bus stop opposite chennai , tamil nadu , india.
tel: 044 - 420 77677, 044 - 430 72173
cell : 093845 77677
email : twggroupchennai@gmail.com

KOCHI BRANCH

Near LULU Shopping Mall
Edappally Toll Junction,
Opposite - Metro Bridge Piller No. 387,
V.P Marakkar Building,
V.P Marakkar Road,
Via - Vanitha and Vinitha Theatre
Edappally P.O, Kochi - Kerala
Contact :073580 27788 , 093810 48884,
Email : twggroupcochin@gmail.com ,
Email : twggroupchennai@gmail.com

MUMBAI BRANCH

crescent business square" No.810, kherani road,
opposite - sj studios sakinaka metro
junction, andheri (east) mumbai - 400 059.
cell : 093810 48884, 073580 27788, 093810 77677
email : twggroupmumbai@gmail.com
email : twggroupchennai@gmail.com

TRICHY BRANCH

sri gem plaza no.3, 4th floor,
sankaran pillai street, s.r.c.college road,
chathiram bus stand, trichy - 620 002
Tamil nadu , india.
contact : jenifer : 093845 77677, 93810 77677
contact : suganya : 093825 88890
email : twggroupchennai@gmail.com

COIMBATORE BRANCH

dheepam complex no.574 to 581, 100 feet road,
near g.p.signal, landmark: kalyan jewellery,
gandhipuram, coimbatore - 641 012 tamil nadu , india.
contact : jasmine : 093810 77677, 093845 77677,
contact : sandhiya : 093825 88890
email : twggroupchennai@gmail.com

VIZAG BRANCH

twg group vizag no. 8 - 12 - 1/1,
2nd floor, gayathri nilay, gokul nagar,
karur vysya bank back side opposite - holy cross church,
old gajuwaka junction, vishakapatnam - 530 026.
Andhra pradesh , india.
contact : 073580 27788, 093810 48884, 76692 48884.
email : twggroupchennai@gmail.com

BANGALORE BRANCH

No.54, 15th Main Road ,
2nd Floor,
East of Chord Road
Vijaya Nagar,
Opposite Vijaya Nagar Metro Station,
Bangalore - 560 040.
Karnataka, India.
Contact : 073580 27788 , 093810 77677
Email : twggroupchennai@gmail.com

HYDERABAD BRANCH

twg group hyderabad contact : shopia : 076679 78887 contact : office : 093810 48884
email : twggroupchennai@gmail.com

DELHI BRANCH

twg group delhi contact : shopia : 076679 78887 contact : office : 093810 48884
email : twggroupchennai@gmail.com

PUNE BRANCH

twg group pune contact : shopia : 076679 78887 contact : office : 093810 48884
email : twggroupchennai@gmail.com

TRIVANDRUM BRANCH

twg group trivandrum contact : shopia : 076679 78887 contact : office : 093810 48884
email : twggroupchennai@gmail.com

CALICUT BRANCH

twg group calicut contact : shopia : 076679 78887 contact : office : 093810 48884
email : twggroupchennai@gmail.com

NDT TESTING