The present disclosure provides an ultrasonic transceiver capable of stably measuring a fluid of high temperature and high humidity for a long period, and provides an ultrasonic flowmeter, an ultrasonic flow velocimeter, and an ultrasonic densitometer each including the ultrasonic transceiver. An ultrasonic transceiver (1) comprises a piezoelectric body (3) and an acoustic matching body (2) disposed in one face of the piezoelectric body (3), wherein the acoustic matching body (2) includes: a top plate, a bottom plate, and a side wall that define a closed space; and a perpendicular partition wall formed substantially perpendicular to the bottom plate and adhering to the top plate and the bottom plate, thereby dividing a closed space.

Non-destructive test systems and associated methods. A non-destructive test system includes an infrared thermography assembly and an ultrasonic test assembly for testing a test piece. The infrared thermography assembly may include one or more thermography sensor modules and a thermography test controller. The ultrasonic test assembly may include one or more ultrasonic sensor subassemblies with respective excitation modules and respective detector modules and an ultrasonic test controller. Each excitation module may be configured to produce a respective ultrasonic beam within the test piece, and each detector module may be configured to detect a respective reflected vibration of the test piece. In some examples, a method of performing a non-destructive test on a test piece includes testing an infrared test region of the test piece with an infrared thermography assembly and testing an ultrasonic test region of the test piece with an ultrasonic test assembly.

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.

A method for multidimensional, tomographic material and/or condition testing on a test specimen is invented, wherein a sensor with electronics for sending, recording and processing measurement data is arranged in each case on the test specimen or in a region of the test specimen at a plurality of predeterminable positions, wherein at least one sensor or the electronics of at least one sensor is used for carrying out a plurality of different physical measurement methods on the test specimen and for generating, triggering and/or transmitting pulses and/or signals required for carrying out at least one of the measurement methods. Furthermore, a device for multidimensional, tomographic material and/or condition testing on a specimen to assess, in particular for carrying out the above method, is invented, wherein the device comprises a plurality of sensors each having electronics, wherein a sensor with electronics for recording and processing measurement data can be arranged on the test specimen or in a region of the test specimen at a plurality of predeterminable positions in each case, at least one sensor or the electronics of at least one sensor being designed for carrying out a plurality of different physical measurement methods on the test specimen and for generating, triggering and/or emitting pulses and/or signals required for carrying out at least one of the measurement methods. Finally, a corresponding sensor for one such device is disclosed.

A contactless odometer system can include a sensor array. The sensor array can include a plurality of sensing elements adjacent to a target surface and configured to receive signals based on a distance separating the sensing element from the adjacent surface and a defect present below the adjacent surface of the target. The system can also include a controller configured to receive the signals from first and second locations within the target and to generate first and second defect maps corresponding to the first and second locations. The controller can identify overlapping portions of first and second defect maps and can determine a translation distance in at least one direction. Related methods of determining a distance traveled by a contactless odometer system are also provided.

A respiratory flow therapy apparatus including a sensor module can measure a flow rate of gases or gases concentration provided to a patient. The sensor module can be located after a blower and/or mixer. The sensor module can include at least an ultrasonic transmitter, a receiver, a temperature sensor, a pressure sensor, a humidity sensor and/or a flow rate sensor. The receivers can be immersed in the gases flow path. The receivers can cancel delays in the transmitters and improve accuracy of measurements of characteristics of the gases flow. The receivers can allow for detection of a fault condition in a blower motor of the apparatus.

A flaw detection apparatus for use with a tubular has a helixing conveyor adapted to receive the tubular thereon, a frame positioned over a center section of the helixing conveyor, and a plurality of inspection devices retained by the frame so as to detect flaws in the tubular as said helixing conveyor moves the tubular through the frame. The helixing conveyor has a plurality of sets of rollers that are angularly adjustable relative to a longitudinal axis of the helixing conveyor. The plurality of inspection devices include a longitudinal inspection device, a Hall Effect wall thickness inspection device, an oblique inspection device, a transverse inspection device, and a grade verification/comparator device.

A structural health monitoring system capable of maintaining electrical contact with sensors affixed to a rotating structure. One such structural health monitoring system comprises a rotatable structure, a plurality of sensors each affixed to the rotatable structure, and an interface. The interface has an inner housing and an outer housing, and maintains a plurality of individual electrical connections, each of the individual electrical connections being an electrical connection between one of the sensors and an electrical contact maintained on the outer housing, the electrical connections configured to be maintained during rotation of the structure. The inner housing is affixed to the structure and the outer housing is rotationally coupled to the inner housing, so that the inner housing is free to rotate with respect to the outer housing during rotation of the structure and the sensors, while maintaining the electrical connections.

A detection system for identifying deterioration in a structure is provided that has acoustic sensors that receive acoustic emission waves. The acoustic emission wave detected by the acoustic sensor is identified as a hit. An analysis circuit is present that identifies an A state, a B state, and a C state. The B state has increased hit activity from the A state where a rate B is greater than a rate A by a factor of f1. The C state has increased hit activity from the B state where a rate C is greater than the rate A by a factor of f2. An alarm is activated when an amount of time that the C state is identified as being present reaches a value of TM, or alternatively when a threshold value based upon of the number of hits and time in the C state is reached.

A system to monitor a composite system component may include a plurality of sensors mounted proximate to the composite system component. A signal processing unit may receive, from each of the plurality of sensors, a series of sensed values associated with the composite system component and determine a kurtosis value for each series of sensed values. A threshold exceedance detector may detect if at least one of the kurtosis values exceeds a pre-determined threshold value. A delamination location estimation unit may calculate an estimated location of a composite system component delamination alert signal based on calculated time difference delay values of detected signal impulses in the series of sensed values using at least four of the plurality of sensors. A delamination alert output may then transmit a composite system component delamination alert signal, along with the estimated location, when at least one of the kurtosis values exceeds the pre-determined threshold.