Abstract: A magnetostrictive ultrasonic transducer is disclosed. The magnetostrictive ultrasonic transducer includes a radiofrequency coil and a magnet assembly. The magnet assembly includes a magnet element and a magnetostrictive element. The magnet element includes a first end and a second end. The second end is configured to be coupled to a wave receiving structure. The magnetostrictive element extends around a portion of the magnet element, offset from the second end, and positioned within the radiofrequency coil. The magnetostrictive element is joined to the magnet element and includes tines extending at an acute angle relative to an axial direction of an axis of the magnet assembly.

Abstract: A fluid property measurement system, comprising at least one waveguide. A sheath substantially surrounds the waveguide and is arranged coaxially with the waveguide. An electronic assembly is operatively coupled to the waveguide and the sheath, the electronic assembly configured to produce a first torsional ultrasonic wave signal through the waveguide, a second torsional ultrasonic wave signal through the sheath, and a longitudinal ultrasonic wave signal through at least one of the waveguide and the sheath. An energy system and a method of measuring properties of a fluid are also disclosed.

Abstract: Elongation measurement apparatuses and systems comprise at least two Linear Variable Differential Transformers (LVDTs) with a push rod coupled to each of the at least two LVDTs at one longitudinal end thereof. At least one push rod extends to a base and is coupled thereto at an opposing longitudinal end, and at least one other push rod extends to a location spaced apart from the base and is configured to receive a sample between an opposing longitudinal end of the at least one other push rod and the base. Nuclear reactors comprising such apparatuses and systems and methods of measuring elongation of a material are also disclosed.

Abstract: Elongation measurement apparatuses and systems comprise at least two Linear Variable Differential Transformers (LVDTs) with a push rod coupled to each of the at least two LVDTs at one longitudinal end thereof. At least one push rod extends to a base and is coupled thereto at an opposing longitudinal end, and at least one other push rod extends to a location spaced apart from the base and is configured to receive a sample between an opposing longitudinal end of the at least one other push rod and the base. Nuclear reactors comprising such apparatuses and systems and methods of measuring elongation of a material are also disclosed.