Acoustic tube supplier Beijing 50*1.5 acoustic tube manufacturer

Acoustic test tube supplier Beijing*. Acoustic test tube manufacturer
. The standard length of sonic test tube in Cangzhou Huayang, China. For and, we can also customize production according to the requirements of customer projects. Huayang acoustic tube products comply with the national standard implementation standard of the industry standard "Steel Thin-walled Acoustic Test Pipes for Concrete Piles and Usage Requirements" started on a trial basis by the Ministry of Communications of the People's Republic of China on (/-) Not only can it meet the requirements of the standard, but every indicator has been greatly improved.
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. Section, Dongguan-Huizhou intercity railway, Changsha-Zhuzhou-Tanzhou intercity railway.
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. Ultrasonic detection tube detection method and principle
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. Using the acoustic wave transmission method. It lowers the ultrasonic transmitting probe and the receiving probe into different steel pipes that are pre-embedded in the pile body and filled with water. The ultrasonic wave generated by the transmitting probe penetrates the concrete of the pile body through water coupling and reaches the receiving probe in another steel pipe, receiving
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. The probe transmits the received information to the instrument, and through comprehensive analysis of the received ultrasonic wave signal in the concrete: such as the characteristics of sound speed, sound amplitude, frequency and waveform parameters, the quality of the pile concrete is Make an evaluation. Its basic basis is: when there are defects in concrete, the ultrasonic sound speed, sound amplitude, frequency and waveform parameters are all reflected. The first is that when there are defects inside the concrete, a discontinuous medium is formed on the ultrasonic wave transmitting and receiving path, and the low-frequency ultrasonic wave will propagate forward around the defects. Within the detection distance, it will The sound time required for the radiation to arrive is longer than the sound time required for ultrasonic waves to propagate directly in defect-free concrete, reflecting the reduction in the sound speed of ultrasonic waves. Secondly, due to the presence of defects, when ultrasonic waves propagate in concrete, the attenuation of the sound energy increases, and the amplitude of the first wave of the received signal decreases. The third is that when there are defects in the concrete, the high-frequency components disappear faster than the low-frequency components, and the frequency of the received signal is always lower than that received by the defect-free concrete through the same range. Finally, due to the complex reflection and refraction of ultrasonic waves on the defect interface, the phase of sound wave propagation is different, and the superposition result causes the waveform of the received signal to be distorted. Based on this, the internal quality of the concrete can be judged.
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