The present disclosure discloses a method and an apparatus for acquiring motion information. A frequency domain transformation is performed on a detection signal of a vibration propagating in a medium to obtain a frequency domain signal, then a signal that is outside of a defined vibration velocity range is removed from the frequency domain signal, that is, only a vibration signal is retained, and then a position-time diagram is obtained along a defined vibration propagation direction. It is not necessary to perform motion estimation on propagation of the vibration by a complicated calculation, and it is only necessary to determine the presence or absence of the vibration by processing in the frequency domain, and then the position-time diagram is obtained, which is a highly efficient method for acquiring motion information.

A photo acoustic non-destructive measurement apparatus and method for quantitatively measuring texture of a liquid. The apparatus includes a laser generating tool, an acoustic capturing device, and a data processing unit. The laser generating tool directs a laser towards a surface of a liquid contained in a container and creates pressure waves that propagate through the air and produce an acoustic signal. The acoustic capturing device records and forwards the signal to a data processing unit. The data processing unit further comprises a digital signal processing module that processes the received acoustic signal. A statistical processing module further filters the acoustic signal from the data processing unit and generates a quantitative acoustic model for texture attributes such as hardness and fracturability. The quantitative model is correlated with a qualitative texture measurement from a descriptive expert panel. Textures of liquids are quantitatively measured with the quantitative acoustic model.

A non-destructive measurement apparatus and method for quantitatively measuring texture of a food snack is disclosed. The apparatus includes a laser generating tool, an ultrasound excitation device, an acoustic capturing device, an ultrasound capturing device and a data processing unit. The laser generating tool and the ultrasound excitation tool direct energy towards a food snack placed on a surface and produce an acoustic signal and an ultrasound signal. The data processing unit further comprises a digital signal processing module that processes the received acoustic signal and ultrasound signal. A statistical processing module further filters the acoustic signal from the data processing unit and generates a quantitative acoustic model for texture attributes such as hardness and fracturability. The quantitative model is correlated with a qualitative texture measurement from a descriptive expert panel. Texture of food snacks are quantitatively measured with the quantitative acoustic model.

Some embodiments of the present disclosure relate to the technical field of ultrasonic detection, and disclose an ultrasonic detection method, an ultrasonic detection system, and a related apparatus. The ultrasonic detection method includes: acquiring a reflected ultrasonic signal transmitted by an ultrasonic detector; generating an ultrasonic image according to the reflected ultrasonic signal, and displaying the ultrasonic image; acquiring information of a mark input by an operator based on the ultrasonic image; determining a marking position according to the information of the mark; transmitting the marking position to the ultrasonic detector, for the ultrasonic detector to indicate a corresponding position of the marking position on a surface of a detected object. The present disclosure resolves problems such as difficulty in operating on the surface of the detected object during ultrasonic detection and a low success rate of operation.

Appliances, methods, and systems (e.g., utilities) for use in analyzing received pressure waves to obtain and deduce various types of meaningful information therefrom (e.g., testing operation of an acoustic device that generates beams of acoustic energy). A pressure sensor in the disclosed system makes use of a piezoelectric layer or film (e.g., polyvinylidene fluoride (PVDF)) that has been substantially uniformly poled prior to interconnection with electrodes that are configured to send electrical signals to a controller or the like for generation of a dynamic, image (e.g., 2D) representing the received pressure waves. Among other advantages, the disclosed system leverages excellent economy of scale, can be configured in different arrangements with reduced cost, and limits the need for adapters or reverse engineering (e.g., as it can operate independently of the design of a probe or system under test.

The invention presents methods and instrumentation for measurement or imaging of a region of an object with waves of a general nature, for example electromagnetic (EM) and elastic (EL) waves, where the material parameters for wave propagation and scattering in the object depend on the wave field strength. The invention specially addresses suppression of 3.sup.rd order multiple scattering noise, referred to as pulse reverberation noise, and also suppression of linear scattering components to enhanced signal components from nonlinear scattering. The pulse reverberation noise is divided into three classes where the invention specially addresses Class I and Class II 3.sup.rd order multiple scattering that are generated from the same three scatterers, but in opposite sequence.

Embodiments disclosed herein address these and other issues by enabling rocket/missile artillery unit integration into the TES environment without the need to incorporate anything into the existing fire control system of the rocket/missile artillery units. Embodiments include a vibration sensor, orientation sensors, and a military communications unit, where the vibration sensor detects the vibrational signature of the ARM switch of the artillery unit and informs the military communications device that the launcher is engaged. The military communications unit can obtain orientation from the orientation sensors and pass engagement data (and orientation) to TES backend.

Ultrasonic transducer (1) comprising a coupling element (3) and a piezo element (2), wherein a metal disk (4) is arranged between the coupling element (3) and the piezo element (2), wherein the metal disk (4) is connected with the piezo element (2) or with the coupling element (3) by means of an adhesive layer (5 or 6), characterized in that the adhesive layer (5 or 6) is producible, at least in certain regions, by means of a photochemically curable adhesive.

A system, apparatus, method, algorithm and/or device (collectively, system) for non-contact or contactless ultrasound viscoelastic spectroscopy measures the viscoelastic properties of soft matter through exerting modulated ultrasound pressure waves, so called stress signals and measuring the material deformation, so called strain imaging, over a wide range of frequencies, and may be applied to various fields including but not limited to material science, polymer designing, tissue engineering, cancer drug development and/or biological tissue assessment for disease diagnosis and prognosis. By measuring the elastic and viscous moduli, the phase difference between them, and Poisson's ratio over a wide range of frequencies, this allows for non-destructive tests on soft matter such as biological tissue, by ultrasound probes.

Disclosed is an inspection probe of an inspection system that includes an ultrasonic probe that is freely movable on a test object and irradiates the test object with an ultrasonic wave to detect a reflected wave, and a calculation unit that executes arithmetic processing according to a detection result according to the ultrasonic probe to acquire a flaw detection result of the test object. The inspection probe includes a chassis that is freely movable on a sheet material where a two-dimensional pattern disposed on the test object and indicating a position on the test object is drawn. The ultrasonic probe is fixed to the chassis so that an incident point of an ultrasonic wave that is incident onto an opposing surface of the test object from the ultrasonic probe is within an angle of view of the reader which reads the two-dimensional pattern.