Embodiments of the present invention provide systems and methods for tagging and acoustically characterizing containers.

Embodiments of the present invention provide systems and methods for tagging and acoustically characterizing containers.

A method of non-destructive evaluation of mechanical properties of a material using ultrasonic waves in a monostatic configuration is disclosed. The method comprises remotely scanning a sample of the material without directly contacting the sample, measuring an acoustic impedance of the scanned sample, and calculating mechanical properties of the material using the acoustic impedance.

A method of non-destructive evaluation of mechanical properties of a material using ultrasonic waves in a monostatic configuration is disclosed. The method comprises remotely scanning a sample of the material without directly contacting the sample, measuring an acoustic impedance of the scanned sample, and calculating mechanical properties of the material using the acoustic impedance.

Systems and methods for bondline inspection using mechanical wave measurement and gas excitation. A cost-effective optical interferometry technique is used to measure mechanical waves generated by gas excitation, which measurements may be used to verify the strength of a bondline of a composite bonded structure. A gas gun which produces a high-pressure short-pulsewidth gas pulse at the front free surface of the composite material. A velocity interferometer system for any reflector (VISAR) is synchronized with the controlled gas pulsation and used to measure the surface velocities. The respective shock wave-induced displacements of the back and front free surfaces are then calculated. The measured free surface displacements are compared with calibrated thresholds to determine whether a weak bond has been detected or not. Optionally, a ring magnet is aligned exactly under the gas gun nozzle to enable VISAR beam centering.

A flow control device includes a valve body having an inlet, an outlet, and a flow path connecting the inlet and the outlet. A flow vane is coupled to the valve body and disposed in the flow path to divide a flow of fluid through the valve body. The flow vane has a first surface, a second surface, and a corrugation formed on at least one of the first and second surfaces. A control element is disposed in the flow path and movable in the valve body between an open position and a closed position.

A flow control device includes a valve body having an inlet, an outlet, and a flow path connecting the inlet and the outlet. A flow vane is coupled to the valve body and disposed in the flow path to divide a flow of fluid through the valve body. The flow vane has a first surface, a second surface, and a corrugation formed on at least one of the first and second surfaces. A control element is disposed in the flow path and movable in the valve body between an open position and a closed position.

The present disclosure discloses a shear-type vibration-ultrasonic composite sensor and a measuring device. In the shear-type vibration-ultrasonic composite sensor, a metal matching layer includes an insulating layer arranged on a lower surface and a supporting pillar arranged on an upper surface, the metal matching layer is in contact with a to-be-detected object via the insulating layer, a first negative electrode face of a first normal piezoelectric element is attached to one side of the metal matching layer, a first positive electrode face of the first normal piezoelectric element is attached to a second positive electrode face of a second normal piezoelectric element, a second negative electrode face is attached to a first surface of a backing block, and a second surface of the backing block is provided with a metal housing.

The present disclosure discloses a shear-type vibration-ultrasonic composite sensor and a measuring device. In the shear-type vibration-ultrasonic composite sensor, a metal matching layer includes an insulating layer arranged on a lower surface and a supporting pillar arranged on an upper surface, the metal matching layer is in contact with a to-be-detected object via the insulating layer, a first negative electrode face of a first normal piezoelectric element is attached to one side of the metal matching layer, a first positive electrode face of the first normal piezoelectric element is attached to a second positive electrode face of a second normal piezoelectric element, a second negative electrode face is attached to a first surface of a backing block, and a second surface of the backing block is provided with a metal housing.

The invention provides an improved acoustic energy generating apparatus that includes an improved backing structure. The improved backing structure employs protrusions that are not located in a uniform pattern along a forward side surface of the backing structure, to realize improved re-direction of acoustic energy towards a forward direction relative to the acoustic energy generating apparatus.