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    Assembled structure multi-function detector

    Device name
    Assembled structure multi-function detector

    Test items

    Test object: fabricated building

    Test item: sleeve grouting compactness

    Patent Name: Elastic Shock Wave Excitation Residual Signal Reduction and Reflection Signal Extraction Technology

    Patent No:ZL200910082851.4

    Related patents

    The basic principle of positioning test (modified shock echo equivalent wave velocity method: IEEV)

    The presence or absence of the grouting defect and the type of the grouting defect can be determined based on the presence or absence of the reflected signal at the position of the sleeve and the length of the reflection time of the underside of the building. When there is a defect in the pipe grout,

    Test principle and method


    Improved impact echo method IEEV test principle

    (1) The excited elastic wave will produce reflection at the defect;

    (2) The time when the excited elastic wave is reflected back from the opposite side of the beam is longer than the place where the grout is dense. Therefore, the equivalent wave speed appears to be slower.


    product description

    Sichuan Shengtuo Testing Technology Co., Ltd. is an expert in nondestructive testing technology, providing sleeve grouting quality detectors.

    In recent years, prefabricated buildings have continued to heat up in China, which has the advantages of saving energy, improving efficiency and improving production capacity. The connection and grouting of the sleeve part is a key part of the prefabricated building, which is naturally the focus of construction inspection.

    This instrument can carry out special inspection on the quality of sleeve grouting in prefabricated buildings. And the instrument has 2D contour rapid imaging, elastic wave radar scanning (EWR) and other post-image processing technology.



    Post-image technology



    2D contour rapid imaging


    Elastic wave radar scanning



    Results and technical characteristics

    Powerful, intuitive results: meet the quality requirements of prefabricated building sleeve grouting, with rich image processing functions;
    Advanced technology: using impact elastic wave as test medium, compatible with various domestic and foreign technologies and the company's original patented technology, high test accuracy;
    Reliable performance: The main components are imported from the United States and Japan, with high reliability and durability.


    Assembled multi-function structure tester


    Corresponding parameter set not found, please add it in property template of background
    1 ★Provide database management services, can be docked with BIM system to achieve the visualization of test results model; with the database, can be linked to test results cloud AI (artificial intelligence) analysis
    2 ★operating system:windows
    3 ★Waveform noise processing and spectrum analysis: Mobile smoothing、BPF、EMD、FFT、MEM
    4 ★Testing method of grouting quality: equivalent wave velocity method(IEEV)
    5 ★Coupling of grouting location: high damping sensor support
    6 ★2Channels (using VMC technology can be extended to multiple channels), triggering channels and receiving channels are interchangeable
    7 ★Signal processing technology: damping residual signal and ground reflection signal; integrator processing and averaging processing
    8 Data acquisition: support for touch and wireless dual mode operation; support for single and continuous dual mode sampling
    9 Defect detection accuracy:10mm
    10 Location information: GPS positioning
    11 Platform: ultra thin platform
    12 working temperature:0~45℃                                                
    13 Sampling accuracy: floating point interpolation is compensated to 24 bits
    14 Acquisition frequency: 500KHz, adjustable                      
    15 Sampling interval: 2us, adjustable
    16 Maximum collection points: 20000, adjustable
    17 Maximum / minimum voltage can be displayed:10V/0.0001V
    18 Display: LCD display1280*800                    
    19 Test signal: vibration acceleration signal                                   
    20 Test object: semi grouting sleeve, full grouting sleeve can be tested
    21 Graphic processing: isoline and shading chart
    22 The same screen indicates the maximum waveform number: 300 (waveform acquisition point 2048, sampling interval 4us)


    Vibrator hammer




    Remote control pen





    Inspection of a sleeve concrete structure in Shanghai


    Inspection of Shear Wall Components at a Construction Site in Anhui Province

    Inspection of Shear Wall Components at a Construction Site in Anhui Province



    Device name
    Multi function detector of prestressed
    Device name
    Back pull effective prestress detector
    Device name
    Prestressed anchor cable (pole) tension detector
    Device name
    Quality detector for grouting density of duct
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