MIRA 3D and MIRA 3D PRO

MIRA 3D is based on the ultrasonic pitch-catch method and uses an antenna composed of an array of advance active dry point contact (A-DPC) transducers with enhanced penetration depth, which emit shear waves into the concrete and receive them. The 4 by 8 transducer array is under wireless control by a powerful smartphone (control unit) and the recorded data are analyzed to create either a 2-D or a 3-D image (for classic linear mode or the newly incorporated matrix mode, respectively) representing the locations of reflecting interfaces of objects within the concrete’s cross section below the antenna. Multiple series of images obtained from a surface scan of the test element can be “stitched” together to create a full 3-D model that can be visualized directly in the screen of the MIRA 3D control unit or alternatively, transferred to a laptop computer that contains the IntroView 3-D visualization software with additional tools to manipulate the 3-D images for interpretation and reporting of test results.

MIRA 3D can be upgraded later to MIRA 3D PRO by ordering a second antenna array. The extended MIRA 3D PRO device offers the largest scan coverage and penetration depth.

Alternatively, MIRA 3D PRO can be ordered directly as a complete system. The instrument can always be used with one single antenna when needed.   

Ultrasonic pulse echo tomographer.

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

Ultrasonic pulse echo tomographer.

• Active dry point contact (A-DPC), shear-wave transducers with wear-resistant ceramic tips and integrated pulser-receiver electronics
• Spring loaded, 32 transducers, wireless, light and compact antenna array. Extendable to 64 transducers (MIRA 3D PRO)
• The spring-loaded transducers conform to irregular surfaces, and they do not require a coupling medium, that is, testing is done in the dry
• Positioning laser beams in the antenna to facilitate its centering during scanning
• 10 to 100 kHz working frequency range
• Nominal frequency = 50 kHz
• Ultrasound speed range: 1,000 to 4,000 m/s (shear wave)
• Dimensions without handles and weight: 200 × 125 × 100 mm, 3.5 kg
• (400 x 125 x 100 mm, 5.6 kg for MIRA 3D PRO)
• Testing depth: 20 to 3,000 mm, depending on the concrete quality, member’s lateral dimensions and amount of steel reinforcement
• (20 to 4,000 mm for MIRA 3D PRO)
• Rechargeable battery, 10 h operating life
• USB interface
• 3-D tomographic display in a PC 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)

Ultrasonic pulse echo tomographer.

MIRA 3D Kit

Includes:

MIRA 3D PRO Kit

Includes:

Item	Order #
MIRA 3D control unit and protective case	M3D-1001
MIRA 3D antenna array x 2	M3D-1002
Adjustable handle x 2	M3D-1003
Type C, AC Charger x 2	M3D-1004
USB Type C data cable x 2	M3D-1005
USB-A to USB-C cable	M3D-1006
Verification sample plate	M3D-1007
Exchangeable battery pack x 2 (inside the antenna)	M3D-1008
Carrying case	M3D-1009
H-Fastener	M3D-1010
M6x10 stainless screw x 4	M3D-1011
IntroView software license	MIR-1003
Laptop with NVIDIA GeForce graphics card (optional)	MIR-1002

• Technical data-sheet 
• Publications

No standards available for this NDT system.