Thickness measurement, rebar & flaw detection.For quality assessment of concrete structures: thickness measurement, rebar localization, flaw detection with ultrasound.MIRA 3D is a low-frequency ultrasonic tomography system suitable for manual and automated assessment of concrete structures. Due to its novel A-DPC® sensor technology, the new MIRA provides unbeatable penetration depth, inspection sensitivity, and imaging resolution by implementing three-dimensional FMC / TFM in each instrument position.Operational advantages:The instrument consists of a lightweight body with 4 x 8 Active Dry-Point-Contact transducers with integrated pulser-receiver circuits and parallel DAQ electronics wirelessly connected to a powerful smartphone that implements image reconstruction and visualization algorithms by means of parallel graphic processor units on-board. This hardware solution allows achieving the highest performance for real-time 3D-TFM imaging.With special transmitting techniques such as E-Boosting, an outstanding penetration depth has been achieved even by using the instrument's relatively small active aperture. For additional extension of the inspection range, arbitrary aperture extension can be utilized by two and more array units in one configuration.MIRA NEO DESKTOP software for remote unit control and 3D visualization & analysis of Big Data is an essential part of the instrument delivered in the standard delivery set. The open data format for customized developments by the user – for offline and online applications – completes the functional package of this extraordinary instrument.Main applications:Localization of reinforcement rebars and other elements (tendon ducts, anchors, hollow pipes, cables), also beyond rebar layersDetection of material voids, estimation of their position and size in 3D: cavities, inclusions, honeycombs, cracksThickness measurement by one-side accessDetection of grouting defects in tendon ducts and grouting couplersAssessment of fireproof stonesTechnical specifications:Instrument typeMulti-channel ultrasonic pulse echo tomograph with built-in matrix transducer arrayNumber of channels32 (extendable to 64, 96 etc.)Number of independent elements in the matrix transducer aperture32 (extendable to 64, 96 etc.)Type of the ultrasonic transducersActive dry point contact (A-DPC) transducers with ceramic wear proof tips and integrated pulser-receiver electronicsBandwidthfrom 10 to 100 kHzMaterial sound velocity rangefrom 1.000 to 4.000 m/s (from 40 to 157 inches / s)Maximum penetration depth in reinforced concreteup to 3.000 mm (118 inch)Power supplyExchangeable Li-Ion battery 18650Battery operation timeup to 10 hoursMaximum dimensions of one unit without handles:200x125x100 mm (7.9 x 4.9 x 3.9 inch)Maximum weight of the electronic unit with the batteries, handles and tablet PC mounted3.5 kgOperating conditions:air temperature rangefrom -10 to +50 °C (from 14 to 122°F)relative air humidity at +35°C / 95°F, max.95 %Average service life, min.5 yearsDelivery set:ItemQuantity, pcs.Electronic unit A1040 MIRA 3D with 32 x A-DPC® transducers1Tablet-PC with protective case1Reference block for regular functional tests1Exchangeable Li-Ion battery 186506Type C power supply2Data cable USB Type C2INTROVIEW® Pro Software with 12 Months Update & Support service1Hard case1Warranty certificate1Operating Manual1Screwdriver for battery exchange2FAQ: What is the ultrasonic pulse-echo method?The ultrasonic pulse-echo method is a widely used non-destructive testing (NDT) technique that helps assess the internal integrity of materials by detecting flaws such as cracks, voids, delaminations, and other internal discontinuities. This method uses high-frequency sound waves (ultrasound) to penetrate a material and measure the time it takes for the sound waves to bounce back (or "echo") from internal features or defects. The pulse-echo method is particularly effective for inspecting materials like metals, concrete, ceramics, and composites.How does the ultrasonic pulse-echo method work?Pulse generation: A transducer generates high-frequency ultrasonic waves and sends them into the material being tested.Propagation and reflection: As the sound waves travel through the material, they are reflected back when they encounter a boundary between different materials or a defect such as a crack or void.Echo detection: The transducer receives the reflected sound waves (echoes) and measures the time taken for them to return.Data interpretation: The time between the emission of the pulse and the reception of the echo is analyzed to determine the location, size, and nature of any internal flaws.The time it takes for the echo to return indicates how far the wave traveled within the material. By analyzing the strength and timing of these echoes, inspectors can create a detailed image of the internal structure of the material and identify any defects or inconsistencies.Applications:Construction: Inspecting concrete structures for voids, cracks, and delaminations to ensure the structural integrity of buildings, bridges, and tunnels.Manufacturing: Evaluating welds and detecting defects in components like pipes, pressure vessels, and machinery.Aerospace and automotive: Inspecting critical components such as engine parts, airframes, and gears for internal defects that could compromise safety and performance.Energy: Assessing the condition of power plant equipment, pipelines, and wind turbine blades for material degradation and fatigue.Advantages:Non-destructive: The pulse-echo method allows for internal inspection without causing damage to the material, making it suitable for critical components and structures.High accuracy: It provides precise data on the size, location, and nature of internal flaws, enabling accurate assessments of material integrity.Versatility: This method can be used on a wide range of materials, including metals, concrete, composites, and ceramics.Portable equipment: Ultrasonic pulse-echo systems are portable and can be used for both on-site inspections and in-lab testing.Depth measurement: The pulse-echo method can detect flaws deep within a material, making it ideal for assessing thick or complex structures.Characteristics / Technical specifications:Instrument type: Multi-channel ultrasonic pulse echo tomograph with built-in matrix transducer arrayNumber of channels: 32 (extendable to 64, 96 etc.)Number of independent elements in the matrix transducer aperture: 32 (extendable to 64, 96 etc.)Type of the ultrasonic transducers: Active dry point contact (A-DPC) transducers with ceramic wear proof tips and integrated pulser-receiver electronicsBandwidth: from 10 to 100 kHzMaterial sound velocity range: from 1.000 to 4.000 m/s (from 40 to 157 inches / s)Maximum penetration depth in reinforced concrete: up to 3.000 mm (118 inch)Power supply: Exchangeable Li-Ion battery 18650Battery operation time: up to 10 hoursMaximum dimensions of one unit without handles: 200x125x100 mm (7.9 x 4.9 x 3.9 inch)Maximum weight of the electronic unit with the batteries, handles and tablet PC mounted: 3.5 kgOperating conditions: air temperature range from -10 to +50 °C (from 14 to 122°F), relative air humidity at +35°C / 95°F, max. 95 %Average service life, min.: 5 years