A non-destructive testing method for an elastic modulus of fine ceramic, an apparatus, and a storage medium, including controlling intact fine ceramic to enter a first testing position, fixing the test sample, controlling an ultrasonic testing instrument to be adjusted to a position of the sample, performing ultrasonic testing e, and collecting testing data; adjusting the sample to a second testing position, performing resilience testing on the sample, and collecting resilience data; building a data model according to the testing data, or substituting the testing data into the pre-built data model to obtain elastic modulus characterization data of the test sample. The test sample does not need to be cut into small-size test samples and is not destroyed, and the intact fine ceramic is subjected to non-destructive testing. The accuracy of tested data is improved, damage to the test sample is also avoided, and reuse of the sample is realized.

A couplant feeding circuit is provided. The couplant feeding circuit has a first set of walls extending from a bottom surface and a second set of walls extending from the bottom surface and between the first set of walls. A membrane extends between the first and second set of walls such that the first and second set of walls along with the membrane form a couplant cavity. The couplant feeding circuit also has a couplant port disposed in one of the first or second set of walls that allows routing of couplant to the couplant cavity. Moreover, the couplant feeding circuit also has a vacuum port disposed in one of the first or second set of walls that allows removal of at least a portion of the couplant from the couplant cavity. Furthermore, the couplant port and the vacuum port form a closed loop within the couplant feeding circuit.

Described herein is a system for determining structural characteristics of an object, the system including a first laser, a second laser, one or more processors, and a computer readable medium storing instructions that, when executed by the one or more processors, cause the system to perform functions. The functions include illuminating, by the first laser, a surface region of an object with an incident light pulse, thereby causing the object to exhibit vibrations; illuminating, by the second laser, the surface region with an incident light beam, thereby generating responsive light that is indicative of the vibrations; detecting the responsive light and determining a difference between a characteristic of the responsive light and a reference characteristic that corresponds to the surface region; determining a position of the surface region within a three-dimensional space; and displaying the surface region such that the difference is indicated at the position of the surface region.

Described herein are systems, methods, and other techniques for determining a material type while an implement of a construction machine is interacting with a ground surface. A vibration signal that is indicative of a movement of the implement is captured. One or more features are extracted from the vibration signal. The one or more features are provided to a machine-learning model to generate a model output. The material type of the ground surface is predicted based on the model output.

A system for monitoring rotating equipment. The system includes a sensor device that acquires vibration data, acoustic emission data, temperature data, and magnetic flux data of the rotating equipment. The sensor device includes base, holding frame, first integrated circuit, housing, and power source. The first integrated circuit includes a plurality of sensors and a microcontroller configured to receive vibration data, acoustic emission data, temperature data, magnetic flux data from plurality of sensors and determine anomalies of the rotating equipment. The system further comprises an application server that receives vibration data and magnetic flux data, determines revolutions per minute (RPM) data for rotating equipment, and diagnose faults based on processed vibration data and RPM data. The application server further generates a set of features and corresponding feature values and analyzes them to diagnose faults, and predict remaining useful life of the rotating equipment.

A method for quantitatively evaluating the expected ultrasonic inspectability of a designed part using ray tracing. First, a model of a part imported. Materials having different indices of refraction are selected for the part and an acoustic coupling medium. Then the following structures and positional relationships are defined: an ultrasonic transducer array comprising a plurality of elements, a position of the acoustic coupling medium between the transducer array and the part, and a plurality of positions of a transmit aperture relative to the part. For each defined position of the transmit aperture, a path of a respective ray is traced from a center of the transmit aperture through the part and then to a respective receive location on the transducer array. Also, a respective value of an inspectability margin is calculated based at least in part on a respective distance between a center of the receive aperture and the respective receive location. Each value of the inspectability margin is compared to a threshold value.

A multi-path acoustic signal apparatus, system, and apparatus for use in material detection are provided. The method includes transmitting at least one acoustic signal from each of a plurality of acoustic transceivers positioned along a first portion of the fluid container. The at least one transmitted acoustic signal is received with at least one additional acoustic transceiver positioned along a second portion of the fluid container, wherein the second portion is substantially opposite the first portion of the fluid container. A composition of the physical material within the fluid container is determined based on the at least one received acoustic signal.

There is disclosed a device for use in evaluating the integrity of soil behind a wall of an infrastructure. The device generally has a frame having a plurality of rests adapted to be received onto the wall during use; a hammer assembly having an actuator fixedly mounted to the frame and a hammer element having a head movably mounted to the frame, the actuator being actuatable to move the head to strike the wall while the plurality of rests hold the frame in a fixed position relative to the wall; and a sensor configured and adapted to sense vibrations of a portion of the wall resulting from the strike and to generate a vibration signal indicative thereof.

An armor plate system includes an integrated damage detector which may permit field testing of an armor plate. The system includes a ceramic plate and a piezoelectric transducer attached to lateral face of the ceramic plate. The piezoelectric transducer may apply a signal to the ceramic plate and receive a reflected signal. The applied signal may form a compression wave. An ultrasonic signal may be applied.

An ultrasonic device to characterize the flow of resin entering and exiting an injection mold during the phase of impregnation, by the resin, of a preform contained in the mold. The device includes two ultrasonic sensors arranged respectively in the vicinity of the inlet port where the resin enters the mold and in the vicinity of the outlet port where the resin exits the mold. Each sensor emits an ultrasonic wave towards the end of the mold in the vicinity of which it is positioned, and receives the ultrasonic wave reflected by the medium. Preferably, the device determines the stabilization of the flow of resin passing through the mold based on the signals received by the sensors. A method for implementing the device to determine the completeness of the operation of impregnating, with resin, a preform positioned in an injection mold into which the resin is introduced.