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New SR-9 concrete rebound thickness gauge
New SR-9 concrete rebound thickness gauge
Product details
The SR-9 concrete rebound thickness gauge is an instrument that measures the thickness of single-sided concrete based on the principle of impact echo. The impact echo method uses a sensor to test and record the echo generated by the impact on the surface of the adjacent sensor. Perform Fast Fourier Transform (FFT) on data of various reflected echoes. Each specific frequency displayed on the spectrum corresponds to a specific thickness and depth.






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