MIRA Lite

MIRA Lite is based on the ultrasonic pitch-catch method and uses an antenna composed of an array of dry point contact (DPC) transducers, which emit shear waves into the concrete. The 4 by 8 transducer array is under computer control and the recorded data are analyzed to create a 2-D image of the reflecting interfaces within the cross section below the antenna. The series of 2-D images obtained from a 2- dimensional surface scan of the test object are transferred to a computer with IntroView imaging software. The software assembles the 2-D slices into a complete 3-D image of the test object. The 3-D image can then be manipulated for interpretation of test results.

Flaw detector.

• Thickness measurement
• Detection of:
  • voids and honeycombing in concrete elements
  • voids in grouted tendon ducts
  • poor-quality bond in overlays and repairs
  • delaminations
  • lack of support behind tunnel linings and below slabs on grade

• Dry point contact shear-wave transducers with wear-resistant ceramic tip 
• Spring loaded 4 x 8 transducers antenna array
• 10 to 100 kHz working frequency range
• Nominal frequency converter = 50 kHz
• Ultrasound speed range: 1,000 to 10,000 m/s
• Dimensions and weight of the electronic unit: 260 × 166 × 80 mm; 1.9 kg
• Dimensions and weight of the antenna array: 220 × 129 × 99 mm (without handles); 3.1 kg 
• Testing depth: 20 to 1,000 mm (depending on the concrete quality, member’s lateral dimensions and amount of reinforcement)
• TFT 5.7’’ color screen
• 11.2 V rechargeable battery, 10 h operating life
• USB 2.0 interface
• 15 Gb internal memory
• Protection class IP54
• 3-D tomographic display with IntroView software
• Operating conditions: -10 °C to 50 °C, < 95% RH
• Error of the depth of a defect, mm, where H is the measured depth = ± (0.05 ∙ H + 10)

MIRL-1000 Kit

• Technical data-sheet 
• Publications

No standards available for this NDT system.