In some implementations, a system may receive a cable map for a deployed cable. The system may receive vibration data indicating a vibration associated with a first section of the cable. The system may determine a characteristic associated with the first section of the cable based on the vibration. The system may determine a location associated with the characteristic based on the cable map. The system may determine that the first section of the cable is associated with the location based on the location being associated with the characteristic. The system may associate the location and a length of a second section of the cable extending from an initial location to the location. The system may receive an input identifying the length of the second section of the cable and may output the location based on associating the location and the length of the second section of the cable.

The present disclosure provides a magnetostrictive guided wave sensor and a method for preparing magnetostrictive coating, relating to the field of magnetic functional materials and preparations thereof. The method includes: pretreating a surface of a test piece; and spraying magnetostrictive alloy powder on the pretreated surface of the test piece to form a magnetostrictive coating attached to the pretreated surface. In the magnetostrictive guided wave sensor and the method for preparing magnetostrictive coating according to the embodiments of the present disclosure, by spraying the magnetostrictive coating on the test piece, no coupling agent is required between the probe of the magnetostrictive coating sensor and the test piece, and the magnetostrictive coating can be formed on test pieces of any shape. In addition, the coating has a high bonding strength with the test piece, and has good tissue characteristics and magnetostrictive performance.

The invention relates to an electronic device for analyzing an analyte (2) present in a fluid, comprising: a consumable and interchangeable sensor (10) comprising temporary receptors (14) capable of an interaction with the analyte present in the fluid, causing a change in local property; a sensor holder (50) in which the sensor is intended to be reversibly placed; and a transducer for the change in local property (130, 131; 230, 231), positioned on the sensor and/or on the sensor holder and able to convert the change in local property into an electronic signal expressing the change in local property. The sensor comprises a protection (17) for the temporary receptors. The invention also relates to the method of manufacturing this device, as well as to the consumable and interchangeable sensor and to its method of manufacturing.

A method comprises determining a mechanical property of a rock sample taking into account (a) a respective amount of each of two or more constituent phases in the rock sample and (b) a corresponding mechanical property parameter associated with each of the two or more constituent phases.

An ultrasonic in-situ automatic detection system for creep cracks on an inner wall of a hydrogen production furnace tube. The system comprises a computer, a multi-channel ultrasonic system control circuit, a motor driver board, a coreless motor, and a tube crawling machine. Multi-channel piezoelectric transducers are arranged in a circumferential direction of the furnace tube. The computer is configured to send detection instructions to the multi-channel ultrasonic system control circuit through a wireless network; the multi-channel ultrasonic system control circuit is configured to control multiple channels to simultaneously excite the piezoelectric transducers, receive echo signals from the piezoelectric transducers and then send the echo signals back to the computer in a wireless mode; and the motor driver board is configured to drive the coreless motor to drive the tube crawling machine to move, receive motion parameters fed back by motor encoders, and send the motion parameters back to the computer.

A defect inspection apparatus (100) is provided with and an excitation unit (1) for exciting elastic waves, an irradiation unit (2) for emitting laser light, a measurement unit (3) for measuring interference light, and a control unit (4). The control unit is configured to acquire an image (61) representing a vibration state of an inspection target object (7) in a measurement area based on a measurement result of the measurement unit (3), detect a discontinuous portion in a vibration state in the measurement area from the image representing the vibration state as a defect (73), and identify a type of the defect based on at least one of a shape (62) of the detected defect and the vibration state of a defective portion.

Apparatus and method of characterizing a material. A sample of a material to be characterized is placed into a thermomechanical analyzer (TMA) instrument, the material sample being a cylindrically- or rectangularly-shaped pellet having parallel top and bottom faces. The TMA has a measurement probe with a single buffer rod intermediate an ultrasound transducer and the top face of the material sample. Ultrasound waves are transmitted through the buffer rod and the top face of the material sample. Signals from the ultrasound waves passing through the material sample are received using a receiving sensor below the bottom face of the material sample. The TMA instrument is then used to control the temperature and forces applied to the material sample and to measure changing length of the material sample. Finally, the ultrasonic attenuation and velocity properties of the material are calculated as a function of the material sample length measurement and received ultrasound signals.

Disclosed is a scanning system including a mechanism base; a carriage, with a first carriage side attached to a first base side and a second carriage side connected to a drive mechanism, wherein the carriage is configured to move the mechanism base; a probe associated with the carriage, the probe having a first side and a second side; an actuator assembly including an actuator and a housing having a first side and a second side, wherein a first housing side is connected to the actuator and a second housing side is connected to the carriage; and an adjustable mount having a first side and a second side, wherein a first mount side is attached to the second housing side and the second mount side is attached to the first probe side, wherein the actuator assembly is configured to maintain the second probe side in a constant contact with an object.

Techniques for non-invasive diagnosis and/or monitoring of corrosion in high temperature systems using specialized sensors that produce multi-mode acoustic signals in situ for accurate determination of wall loss and/or physical property changes for a vessel in contact with a high temperature, highly corrosive substance are disclosed. Sensitivity of a few microns (or about 0.1%) of wall loss, detection of changes in physical properties of vessel contents (e.g., approximately 1%), or both, at temperatures of 500° C., 600° C., or higher may be realized. Corrosion may be identified and/or monitored using time domain, frequency domain, or mixed time domain and frequency domain analysis of signal characteristics, signal delay, or both, for relatively short circumferential acoustic wave propagation (e.g., a few inches), as well as relatively long axial acoustic wave propagation (e.g., tens of feet).

Techniques are provided for detecting wafer defects. Example techniques include exciting a wafer using an acoustic signal to cause the wafer to exhibit vibrations, measuring one or more of linear frequency response metrics or nonlinear frequency responses metrics associated with the vibrations, and identifying any defects in the wafer based at least in part on one or more of the linear frequency response metrics or nonlinear frequency responses metrics. In embodiments, the wafer includes bismuth telluride (Bi.sub.2Te.sub.3).