Acoustic characteristic detection device of forming material under state of controllable change of temperature and pressure

Abstract

The invention discloses an acoustic characteristic detection device of a forming material under the state of controllable change of temperature and pressure. A testing cabin, a guide rail and a hydraulic cylinder are arranged on a base, the hydraulic cylinder is connected with one end of a sliding table, the sliding tale slides in the guide rail, the other end of the sliding table is connected with a sliding table sleeve, a forming material sample is horizontally placed in the testing cabin, a testing cabin end cover is arranged at one end of the testing cabin and is connected with a first transducer, the sliding table sleeve is arranged at the other end of the testing cabin, a second transducer is connected into the sliding table sleeve, two ends of the sample are respectively attached to the end face of the sliding table sleeve and the end face of the end cover of the testing cabin, and at the time, a direct ultrasonic waveform is generated; water in the testing cabin is subjected to pressure regulation through pressurizing, and the pressure 100MPa is equal to that in water of 10000m; and an ultrasonic meter is started for measuring audiograms under different underwater environment states, and the audiograms are analyzed to obtain sound velocities and sound attenuation coefficients of transverse waves and longitudinal waves, and parameters of physical and mechanical properties of the forming material are matched.

Description

technical field [0001] The invention relates to an acoustic characteristic detection device of a forming material under the controllable change state of temperature and pressure. Background technique [0002] Formed materials refer to materials processed to obtain a certain cross-sectional shape, such as: copper, stainless steel, nylon, concrete, soil, seabed sediments, etc. [0003] Using ultrasonic waves to detect underwater molding materials is a new technology, which can detect the physical and mechanical properties of underwater molding materials. With the rapid development of underwater engineering, such as: laying submarine cables, constructing submarine tunnels, and constructing offshore oil and gas collection platforms, etc., it is necessary to master the data of the physical and mechanical properties of underwater molding materials at different temperatures and pressures, which is important for engineering quality and Safety provides an important basis. Existin...

AI Technical Summary

Problems solved by technology

Acoustic detection methods, such as: concrete dynamic elastic modulus measuring instrument, can only detect the dynamic elastic modulus characteristics of materials, and the pressure within 20Mpa is equivalent to 2000 meters of water depth, which cannot meet the detection conditions of physical and mechanical properties and higher pressure

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