An acoustic inspection device and an associated method for inspecting a component are provided. The acoustic inspection device is portable and includes an acoustic transmitter and receiver that may be placed on opposite sides of an inspection region on the surface of the component. The acoustic transmitter has an array of acoustic transducers for generating an acoustic wave that travels along a surface of the component and the acoustic receiver has an array of acoustic transducers for receiving that acoustic wave. A controller determines at least one surface characteristic of the component from the measured acoustic wave, such as its crystalline structure or grain size.

According to one embodiment, an inspection system of an embodiment includes one or more sensors. The one or more sensors detect second elastic waves emitted to the outside of a shaft-shaped inspection object due to first elastic waves propagating through the shaft-shaped inspection object. The one or more sensors are fixedly placed at positions away from the shaft-shaped inspection object and the directivity direction of the sensor is inclined at a predetermined angle with respect to an axial line of the shaft-shaped inspection object.

Methods of detecting pipeline weakening are described herein. The methods include creating a pressure wave in a fluid flowing in a pipeline using an input transducer located at a first position along the pipeline; measuring the pressure wave using an output transducer positioned at a second position along the pipeline that is spaced from the first position, and generating an output signal based on the pressure wave; analyzing the output signal to determine a stiffness of a sidewall of the pipeline positioned between the input transducer and output transducer; and determining if the sidewall includes a defect based on the stiffness of the sidewall, including analyzing a frequency response of the output signal to detect the defect.

A detection apparatus according to an embodiment includes a convergence member and a sensor. The convergence member comes into contact with a test object and has an elastic-modulus distribution in which an elastic modulus decreases as a distance from a center of the convergence member increases. The sensor is placed in an area including the center of the convergence member. The sensor detects, through the convergence member, an elastic wave generated from the test object.

A defect inspection device (100) includes an excitation unit that excites an elastic wave, an irradiation unit (2) that applies laser lights, a measurement unit (3) that measures the interfered laser lights, and a control unit that acquires vibration state information which is information about a state of the elastic wave excited in an inspection target (P) for a plurality of frequencies by changing a frequency of excitation vibration caused by the excitation unit in order to excite the elastic wave in the inspection target (P), and extracts recommended frequencies (F) recommended for inspecting a defect of the inspection target (P) from among the plurality of frequencies based on the acquired vibration state information for the plurality of frequencies.

This disclosure relates to the monitoring and detection of corrosion and/or erosion of pipes, vessels, and other components in an industrial facility. The monitoring system may comprise of an arrangement of guided wave (GW) transducers and a longitudinal wave (LW) transducer affixed to the piping component to collectively measure for localized corrosion of the piping component without necessarily requiring a thickness map. The monitoring system may use an intelligent amplified multiplexer/switch to control the operation of the transducers that may be controlled and operated to generate waves in the kilohertz range and megahertz range with the same hardware.

The use of nondestructive inspection (NDI) capabilities for the detection of fatigue cracks extending from fastener holes in multi-layered metallic structures without removing the fastener; including at least the use of a probe guide containing a UT sensor and either an inertial measurement unit (IMU) or a rotary encoder, and either of these options could be applied in testing of either raised head fasteners or flush fasteners.

A moving inspection device capable of realizing significant size reduction/weight reduction without affecting the inspection performance for an inspection target, a moving inspection method, and a method for manufacturing a steel material. A moving inspection device includes: a moving inspection device body configured to inspect an inspection target for defects while moving over a surface of the inspection target; and water supply devices separate from the body and configured to supply water required for the inspection onto the surface of the inspection target. The body is installed with a flow adjustment plate configured to push out the water supplied onto the surface of the inspection target from the water supply devices in the advancing direction and form streamlines for supplying the water between inspection sensors configured to inspect the inspection target for defects and the surface of the inspection target simultaneously with the movement of the body.

An apparatus used to balance bullion for a Ping Test. The apparatus is placed on a flat surface. The bullion being tested is then placed in a balanced position on top of the device. The user then taps the now balancing bullion with an appropriate object. This causes a vibration to move through the bullion, which creates a sound that is unique to the physical properties of the bullion being tested. By listening to the sound, and comparing it with a known authentic, the user can determine if the bullion being tested sounds genuine, has anomalies, been altered, tampered with, or is a counterfeit. Any differences in the sound produced is a strong indication that the bullion needs further testing.

Methods and systems for material identification include generating a plurality of first fingerprints for a plurality of material sheets supplied by a supplier at a first step of processing the plurality of material sheets. Each first fingerprint in the plurality of first fingerprints represents a first attenuation measurement of each material sheet in the plurality of material sheets as captured by an array of transducers. Further, the methods and systems include generating a batch mask relating to the first step of processing the plurality of material sheets and based on the plurality of first fingerprints. The batch mask represents a signal correlation of the plurality of first fingerprints that is unique to the plurality of material sheets supplied by the supplier. A target material can be identified using the batch mask.