A method and apparatus for determining when a shipment undergoes excessive vibration or bouncing is provided herein. During operation, a device such as an accelerometer, Piezoelectric, or vibration sensor, will monitor an acceleration/vibration experienced by a shipment. The device will also monitor an acceleration/vibration experienced by the shipping container housing/holding the shipment. If the acceleration or vibration of the shipment exceeds the acceleration or vibration of the shipping container by a predetermined amount, a warning will be given so that the situation can be mitigated.

A method (900, 1000) of determining a vibration response parameter of a vibratory element (104) is provided. The method (900, 1000) includes vibrating the vibratory element (104) at a first frequency with a first drive signal, receiving a first vibration signal from the vibratory element (104) vibrated at the first frequency, measuring a first phase difference, the first phase difference being a phase difference between the first drive signal and the first vibration signal. The method (900, 1000) also includes vibrating the vibratory element (104) at a second frequency with a second drive signal, receiving a second vibration signal from the vibratory element (104) vibrated at the second frequency, measuring a second phase difference, the second phase difference being a phase difference between the second drive signal and the second vibration signal. The method (900, 1000) further includes using the first phase difference and the second phase difference to determine at least one of a phase difference, and a frequency of the vibratory element (104).

A breakaway stethoscope includes a chest piece, a headset, a tube, and a coupler. The chest piece captures sounds generated inside a person's body when the chest piece is positioned adjacent the person's body. The headset directs the sounds captured by the chest piece toward a person's ear when the headset is positioned on an ear of the person. The tube connects the chest piece to the headset and conveys the sounds captured by the chest piece toward the headset. The tube has a length and includes a first portion connected to the chest piece and a second portion connected to the headset. The coupler releasably connects the tube's first portion to the tube's second portion and releases one of the tube's portions when the tube experiences a force that urges at least one of the tube's portions to move away from the coupler.

A method may include obtaining, at a server or analysis device, sensor data comprising at least one of vibration data and impulse data from one or more sensor devices coupled to a first utility infrastructure; obtaining training sensor data associated with at least one of the first utility infrastructure from a previous time period and one or more second utility infrastructures; comparing the sensor data with the training sensor data associated with the at least one of the first utility infrastructure from the previous time period and the one or more second utility infrastructures; and identifying or predicting a fault occurrence associated with the first utility infrastructure based on the comparing the sensor data associated with the first utility infrastructure to the training sensor data associated with the at least one of the first utility infrastructure from the previous time period and the one or more second utility infrastructures.

A system and method for receiving a plurality of first inputs from a transducer, where the plurality of first inputs correspond to vibrations of a rotational machine, and filtering the plurality of first inputs to derive a frequency of interest. The system and method then generates a sinusoidal signal at the frequency of interest and a pulse train of one or multiple pulses per revolution at the frequency of interest from the sinusoidal signal. The system and method further identifies a first pulse at a zero crossing within the pulse train and counts zero crossings to define blocks of data for use in time synchronous averaging calculations.

A measuring device is applied to an active damping system, the active damping system including a damper having a plurality of sensors and a plurality of actuators, the damper being arranged on an object to be subjected to damping. The measuring device includes: a transmission characteristic storage unit configured to store a plurality of transmission characteristics calculated from driving signals and vibration state signals; a damping performance setting unit configured to set damping performance including the amount of vibration reduction required of the active damping system and a frequency of vibration; and a damper configuration calculator configured to calculate how many the number of the sensors and actuators for the damper is increased or decreased on the basis of the transmission characteristics and the damping performance, with the increase or decrease being necessary in order that the damping performance set in the damping performance setting unit is satisfied.

A method and apparatus for analyzing an object using acoustic emissions. Load data is received for the object. Acoustic waveform data is received for the object from an acoustic sensing system. The acoustic waveform data represents acoustic emissions emanating from the object and is detected using the acoustic sensing system. A plurality of bins is created for the load data. A plurality of frequency distribution functions is generated for the plurality of bins using the acoustic waveform data. A set of learning algorithms is applied to the plurality of frequency distribution functions and the acoustic waveform data to generate an output that allows an operator to more easily and quickly assess a structural integrity of the object.

A method and apparatus for analyzing an object using acoustic emissions. Load data is received for the object. Acoustic waveform data is received for the object from an acoustic sensing system. The acoustic waveform data represents acoustic emissions emanating from the object and is detected using the acoustic sensing system. A plurality of bins is created for the load data. A plurality of frequency distribution functions is generated for the plurality of bins using the acoustic waveform data. A set of learning algorithms is applied to the plurality of frequency distribution functions and the acoustic waveform data to generate an output that allows an operator to more easily and quickly assess a structural integrity of the object.

The present invention provides a sensor assembly including housing; a sensor, disposed in the housing; a conductive member, having an inner portion located inside the housing and an outer portion located outside the housing. The outer portion receives a physical quantity from a component to be sensed and transmits the physical quantity to the sensor through the inner portion, so that the sensor senses the physical quantity and generates a sensing signal; a wireless communication module, receiving the sensing signal and transmits an output signal corresponding to the sensing signal. The invention also provides a method for using a sensor assembly as above

The present invention provides a sensor assembly including housing; a sensor, disposed in the housing; a conductive member, having an inner portion located inside the housing and an outer portion located outside the housing. The outer portion receives a physical quantity from a component to be sensed and transmits the physical quantity to the sensor through the inner portion, so that the sensor senses the physical quantity and generates a sensing signal; a wireless communication module, receiving the sensing signal and transmits an output signal corresponding to the sensing signal. The invention also provides a method for using a sensor assembly as above