Stress Engineering

PreStress Engineering Division (PreStressED)

Ultrasonic Measurement of Applied and Residual Stresses

Ultrasonic Computerized Complex (UCC) – UltraMARS

Device UltraMARS®

Measurement Unit with Transducers

  • Measurement of the velocities of the longitudinal ultrasonic wave and shear waves of orthogonal polarization to determine the uni- and biaxial stresses averaged through thickness of material
  • Measurement of the velocities of surface waves to determine the uni- and biaxial stresses on the surface of material

Supporting Software

  • Control of the measurement process
  • Storing of the acoustic measurement data
  • Calculation & drawing of residual stress distribution
  • Usage of the designed method & equipment with standard PC’s

Main Technical Parameters of the Measurement Unit

The developed equipment allows one to determine the magnitudes and signs of uni- and biaxial residual and applied stresses for a wide range of materials as well as stress, strain and force in bolts (pins). Quartz plates measuring 7×7 mm and 10×10 mm in cross-section are used as ultrasonic transducers. These gauges are attached to the object of investigation by special clamping straps or strong magnets or electromagnets.

The main technical characteristics of the measurement unit
  • stress can be measured in materials with thickness 2 – 150 mm
  • error of stress determination (from external load) 5 – 10 MPa
  • error of residual stress determination 10%
  • stress, strain & force measurement in bolts (pins) 25-1000 mm long
  • power requirement 220 V/50Hz or 115v/60Hz (as requested)
  • independent power supply (accumulator battery 12 V – optional)
  • overall dimensions of measurement device 300x200x150 mm
  • weight of unit with transducers 6 kg

Follow the links below for more information

a. General Brochure


Independent DC-AC converter for work in field conditions.



(905) 415-2207

Toll Free: 1( 855) 415-2207

Fax: (905) 415-3633


Come Say Hi


Units 7-9, 80 Esna Park Dr.

Markham, Ontario
L3R 2R7

Units 10-11,2650 John Street

Markham, Ontario
L3R 3W1