Ultrasonic Testing (UT) detects and evaluates flaws through the use of high-frequency sound energy. The inspection system consists of several units such as the receiver, transducer, and display monitor. The receiver produces high voltage electrical pulses, which prompts the transducer to create high-frequency ultrasonic energy. The transducer is passed over the product that is being tested and that energy then travels through it in the form of waves. The transducer is typically separated from the product by a couplant, such as oil, or water as in immersion testing. The use of a couplant reduces energy loss that would occur from contact between the surface of the product and transducer.

A crack or flaw in the product produces an interruption in the wave path, causing part of that energy to be reflected back from the surface of the indication. The transducer converts the reflected energy into an electrical signal, which then appears as a discontinuity on the display monitor. The signal can supply information regarding the location, size, and orientation of the flaw.

UT testing is commonly used to inspect steel, aluminum, and other metals and alloys. It is frequently utilized in the aerospace, automotive, transportation, and manufacturing sectors. Like all NDT methods, it presents both advantages and limitations.

A few of the most commonly referenced advantages are as follows: 

  • Product requires minimal preparation prior to inspection 
  • Testing provides precise information regarding the size, shape, and position of an indication
  • Able to detect flaws at both the surface and subsurface of the product
  • Subsurface detection can identify flaws at a greater depth than other NDT methods
  • Test equipment provides on the spot results
  • Detailed images can be produced when using automated systems

Bearing these advantages in mind, it is important to consider the following limitations of Ultrasonic testing:

  • To calibrate test equipment and define flaws, a reference standard is required
  • Ease of inspection is dependent upon the features of the product being tested
  • Cast iron or other rough surfaced materials are difficult to test, due to low transmission of ultrasound and high signal noise 
  • Parts of an irregular shape and small size are also difficult to inspect 
  • Defects that run parallel to the sound beam may be unable to be detected 
  • Required training for UT inspectors is more extensive than some other methods, necessitating a greater time commitment

0BOur Ultrasonic equipment is state-of-the-art, boasting three computerized systems. Orbit is capable of testing a wide range of product that varies in both shape and size, such as tubing, billets, forgings, and machined parts. The following Ultrasonic testing services are available across three locations: 

Orbit Industries, Inc.
6840 Lake Abram Drive, Middleburg Heights, OH 44130

 Primary Inspection Services:   Additional Services Available:
 Bar Stock Inspection from .200” - 20” dia   Saw Cutting
 Plate Inspection Maximum 12’ x 40’  Grinding
 Turntable Inspection Maximum 38” dia, Under 400 lbs  Indication Removal
 Contact and Forging Inspection   Level III Consulting
 C-Scan and Automated systems  Technical Services
 2132 Qualified   
 5 Ton Maximum Capacity  


2058 South Bailey Road, North Jackson, OH 44451

 Primary Inspection Services:   Additional Services Available:
 Bar Stock Inspection  from .200” - 20” dia  Bar Peeling/Turning 
 15 Ton Maximum Capacity   Bar Polishing 
   Saw Cutting 


2456 Petroleum Center Road, Titusville, PA 16354

 Primary Inspection Services:   Additional Services Available:
 Bar Stock Tac Tic Inspection from .200" - 5.00"  Radial Forge
 Bar Stock Inspection from 3.00” - 14.00” dia   Heat Treating 
 15 Ton Maximum Capacity  Bar Turning
   Conversion Services 

830 Brigham Road, Dunkirk, NY 14048

 Primary Inspection Services: 
 Bar Stock Tac Tic Inspection from .200" - 2.50"

Request a Quote  Orbit Industries Testing Capabilities  Minimum Pricing