An ultrasonic target, including a main reflector, the main reflector including three main faces, extending from a main vertex, the main faces forming a main trirectangular trihedron; defining a main base plane, lying facing the main vertex, and forming a base of the main trirectangular trihedron; the target including at least one auxiliary reflector fastened to the main reflector, the or each auxiliary reflector including three auxiliary faces, extending from an auxiliary vertex, the auxiliary faces forming an auxiliary trirectangular trihedron; defining an auxiliary base plane, lying facing the auxiliary vertex, and forming a base of the auxiliary trirectangular trihedron.

A spectrometer includes a crystal analyzer having a radius of curvature that defines a Rowland circle, a sample stage configured to support a sample such that the sample is offset from the Rowland circle, x-ray source configured to emit unfocused x-rays toward the sample stage, and a position-sensitive detector that is tangent to the Rowland circle. A method performed via a spectrometer includes emitting, via an x-ray source, unfocused x-rays toward a sample that is mounted on a sample stage such that the sample is offset from the Rowland Circle, thereby causing the sample to emit x-rays that impinge on the crystal analyzer or transmit a portion of the unfocused x-rays to impinge on the crystal analyzer; scattering, via the crystal analyzer, the x-rays that impinge on the crystal analyzer; and detecting the scattered x-rays via a position-sensitive detector that is tangent to the Rowland circle.

The present invention provides a mode conversion reflector provided on an edge surface of an elastic medium, capable of mode-converting an incident ultrasonic wave with high efficiency and simultaneously reflecting the wave in a desired direction. The mode conversion reflector according to the embodiment includes an elastic medium; and a reflective layer formed of a non-planar structure on an edge surface of the elastic medium, in which an interference phenomenon caused by diffraction of wave occurs by the reflective layer, so that an ultrasonic wave incident through the elastic medium is mode-converted and reflected in a predetermined direction.

A spectrometer includes a crystal analyzer having a radius of curvature that defines a Rowland circle, a sample stage configured to support a sample such that the sample is offset from the Rowland circle, x-ray source configured to emit unfocused x-rays toward the sample stage, and a position-sensitive detector that is tangent to the Rowland circle. A method performed via a spectrometer includes emitting, via an x-ray source, unfocused x-rays toward a sample that is mounted on a sample stage such that the sample is offset from the Rowland Circle, thereby causing the sample to emit x-rays that impinge on the crystal analyzer or transmit a portion of the unfocused x-rays to impinge on the crystal analyzer; scattering, via the crystal analyzer, the x-rays that impinge on the crystal analyzer; and detecting the scattered x-rays via a position-sensitive detector that is tangent to the Rowland circle.

Methods, systems, and devices for determining an acoustic parameter of a downhole fluid using an acoustic assembly. Methods include transmitting a plurality of pulses; measuring values for at least one wave property measured for reflections of the plurality of pulses received at at least one acoustic receiver, including: a first value for a first reflection traveling a first known distance from a first acoustically reflective surface having a first known acoustic impedance, a second value for a second reflection traveling a second known distance substantially the same as the first known distance from a second acoustically reflective surface having a second known acoustic impedance, and a third value for a third reflection traveling a third known distance from a third acoustically reflective surface having a third known acoustic impedance substantially the same as the second acoustic impedance; and estimating the acoustic parameter using the values.

To improve defect detection accuracy, an ultrasonic inspection device causing an ultrasound beam to enter an object through a gas for inspection of the object includes: a transmission probe emitting the ultrasound beam; a reception probe mounted on an opposite side of the object from the transmission probe; and an eccentric distance adjuster that adjusts an eccentric distance between a transmission sound axis which is the central axis of the propagation path of the ultrasound beam transmitted from the transmission probe and a reception sound axis which is the central axis of the propagation path of an ultrasound beam assumed to be emitted from the reception probe to a distance greater than zero.

An escape system used for a car being sunken into water and its ultrasonic component are illustrated. The ultrasonic component has a case and an ultrasonic module, and the escape system used for the car being sunken into water has the ultrasonic component and a mainboard. The present disclosure utilizes the property of the ultrasonic to recognize the type and thickness of obstacles which are accumulated in the ultrasonic component, and to determine whether a warning message for sweeping the obstacles should be sent, so as to maintain a sensitivity of the ultrasonic component and further to prevent the ultrasonic component from mistakenly judging that the car is sunken in water.

Systems and methods for monitoring a cheesemaking process, and for identifying certain stages of the process, are disclosed. The system includes a sonic sensor, along with a processor that will receive, from the sonic sensor, a signal that is indicative of a speed of sound in a material that is being processed in the cheesemaking process. The processor will use the speed of sound to identify a cut point in the cheesemaking process. The processor will generate a signal when the cut point is reached. Optionally, before this happens the processor also may use the speed of sound to identify a flocculation point in the cheesemaking process.

According to one embodiment, an inspection device includes a transmitter configured to transmit a first ultrasonic wave, a receiver on which the first ultrasonic wave is incident, and a receiving-side waveguide located between the receiver and an inspection position. The receiver is configured to output a signal corresponding to the incident first ultrasonic wave. The inspection position is between the transmitter and the receiver. The first ultrasonic wave passes through the receiving-side waveguide. An inspection object passes through the inspection position along a second direction crossing a first direction. The first direction is from the transmitter toward the receiver. The receiving-side waveguide includes at least one of a first structure or a second structure. In the first structure, the receiving-side waveguide includes a tubular member and an inner member. The inner member is located inside the tubular member. In the second structure, the receiving-side waveguide includes a tubular member.

A device and method for performing ultrasound scanning of a substantially cylindrical object, the device comprising a cuff adapted to fit around a circumference of the object, a carrier mounted slidably on the cuff and adapted to traverse the circumference of the object, an ultrasound probe mounted on the carrier and positioned to scan the circumference of the object as the carrier traverses the circumference of the object, a carrier motor mounted on the cuff or the carrier and used to drive the movement of the carrier about the circumference of the object, and one or more data connections providing control information for the carrier motor and the ultrasound probe and receiving scanning data from the ultrasound probe.