Systems and methods for prediction of state of charge (SOH), state of health (SOC) and other characteristics of batteries using acoustic signals, includes determining acoustic data at two or more states of charge and determining a reduced acoustic data set representative of the acoustic data at the two or more states of charge. The reduced acoustic data set includes time of flight (TOF) shift, total signal amplitude, or other data points related to the states of charge. Machine learning models use at least the reduced acoustic dataset in conjunction with non-acoustic data such as voltage and temperature for predicting the characteristics of any other independent battery.

Disclosed herein is a system for determining discontinuities in a blister pack. The system includes a blister pack and a discontinuity sensing apparatus coupled to the blister pack. The blister pack includes a tray with a plurality of cells and a seal layer arranged to seal the cells. The discontinuity sensing apparatus includes a signal generation element and a signal receiving element. In one embodiment, the signal generation element is arranged to transmit an acoustic pulse. In another embodiment, the signal generation element is arranged to transmit a swept acoustic signal. In one embodiment, the discontinuity sensing apparatus is coupled to the blister pack such that each of the plurality of cells is positioned at a unique distance from the discontinuity sensing apparatus. The determinations on discontinuities can be made in part from information from the time domain and/or in part from information from the frequency domain.

Inspection robots and methods for inspection of curved surfaces are described. An example inspection robot may include a housing, and at least one drive module operative linked to the housing and including a wheel and motor. An example inspection robot may further include two sleds, each with a sensor, the sled connectable to a payload. An example payload may include multiple rail components with intervening connectors, the connectors are able to connect two rail components at a plurality of discrete engagement positions.

A method and apparatus for determining the compressive strength of masonry units based on airborne sonic signals generated by stimulating the samples with short duration, mechanical impulses are described. The non-destructive testing apparatus consists of a specimen support unit which mechanically isolates the masonry unit from the environment and from the support, a mechanical stimulator, and an acoustic response detector. The signals recorded are analyzed to extract the pertinent features which are then used to compute the compressive strength of the sample. The pertinent signals are deduced through a calibration of the masonry type being analyzed (material and shape) based on physical analysis of the sample's normal modes of vibration, or through Finite Element Analysis of the vibrations, or through direct empirical calibration. This non-destructive testing method is low-cost, readily implemented and provides a reliable technique for compressive strength estimation.

Methods, systems, and devices for solid axle testing are provided.

Methods, systems, and apparatuses are provided for detecting and determining conditions of and conditions within a fluid conduit.

Methods, systems, and apparatuses are provided for detecting and determining conditions of and conditions within a fluid conduit.

Inspection robots with removeable interface plates and method for configuring payload interfaces are described. An example robot may include a payload, with at least one sensor, mounted to a housing of the inspection robot. The housing may include a removeable interface plate coupled to the at least one sensor and to an electronic board, the electronic board positioned within the housing. The removeable interface plate may define an electrical coupling interface compatible with the payload, and the electronic board may include an electrical processing configuration compatible with the payload.

An apparatus for scanning a cylindrical part is provided. The apparatus includes an ultrasonic transducer operable to emit ultrasonic waves into and receive ultrasonic waves from the part, with the ultrasonic transducer connected to a translation stage to move it up and down the part and around the circumference of the part. The apparatus does not mechanically contact the cylindrical or maintains contact only with soft elements, such that the apparatus does not damage sensitive parts. The apparatus also contains no magnetic parts, nor any elements that rely on magnetic detection, such that the apparatus is capable of being used in the vicinity of a part exhibiting a strong magnetic field.

Systems for reprogrammable inspection robots are described. An example system may include an inspection robot having a housing, a payload interface, a drive module interface, and a tether interface. The system may further include a first electronic board having a primary functionality circuit communicatively coupled to a base station and a second electronic board operationally coupled to the payload interface, the second electronic board having a payload functionality circuit coupled to a selected payload through the payload interface. The example system may further include a third electronic board operationally coupled to the drive module interface, the third electronic board having a drive module functionality circuit communicatively coupled to a selected drive module through the drive module interface.