An electronic device and a method of driving the same are provided. The electronic device includes a container; a sensor; a driving unit; and a processor configured to: based on sensing data received through the sensor, measure, at a predetermined time interval, external forces exerted on the electronic apparatus from a ground on which the electronic apparatus is located, identify, based on frequency characteristics of the external forces and a natural vibration frequency of a liquid contained in the container, a frequency having frequency characteristics corresponding to the natural vibration frequency among frequencies of the external forces, and input a driving signal to the driving unit, based on a size of the identified frequency, the driving signal controlling a velocity of the electronic apparatus according to a natural vibration period of the liquid.

Unmanned Aerial Vehicles (UAVs) are provided with hammers having contact surfaces to produce acoustic signals in structures to be inspected. By selecting a suitable flight path, the contact surface can be dragged across or tapped against the structure to produce acoustic signals indicative of structure condition. Acoustic detectors are coupled to the UAV to produce detected acoustic signals that can be stored, communicated, and/or processed to access to arbitrary structure surfaces, including bottom surfaces of bridge decks and to locate delaminations.

The embodiments of the present disclosure may disclose a vibration sensor, including: an acoustic transducer and a vibration assembly connected with the acoustic transducer. The vibration assembly may be configured to transmit an external vibration signal to the acoustic transducer to generate an electric signal, the vibration assembly includes one or more groups of vibration diaphragms and mass blocks, and the mass blocks may be physically connected with the vibration diaphragms. The vibration assembly may be configured to make a sensitivity degree of the vibration sensor greater than a sensitivity degree of the acoustic transducer in one or more target frequency bands.

Various embodiments of an apparatus for measuring binding kinetics of an interaction of an analyte material present in a fluid sample are disclosed. The apparatus includes a sensing resonator having at least one binding site for the analyte material; actuation circuitry adapted to drive the sensing resonator into an oscillating motion; measurement circuitry coupled to the sensing resonator and adapted to measure an output signal of the sensing resonator representing resonance characteristics of the oscillating motion of the sensing resonator; and a controller coupled to the actuation and measurement circuitry, wherein the controller is adapted to detect an individual binding event between the at least one binding site and a molecule of the analyte material.

Various embodiments of an apparatus for measuring binding kinetics of an interaction of an analyte material present in a fluid sample are disclosed. The apparatus includes a sensing resonator having at least one binding site for the analyte material; actuation circuitry adapted to drive the sensing resonator into an oscillating motion; measurement circuitry coupled to the sensing resonator and adapted to measure an output signal of the sensing resonator representing resonance characteristics of the oscillating motion of the sensing resonator; and a controller coupled to the actuation and measurement circuitry, wherein the controller is adapted to detect an individual binding event between the at least one binding site and a molecule of the analyte material.

Disclosed are methods that, by not physically touching the material being measured, can measure the material's differential, response quite accurately. A collimated light shines on the material under test, is reflected off it, and is then captured by a recording device. The position where the reflected light is captured is used to calculate the deflection of the material. Dynamic characteristics of the material under test may be determined from the deflection measurement. The vibration frequency or vibration amplitude of a cantilever can be determined by repeated deflection measurements, all without physically touching the cantilever during the measurement process.

A detection system for detecting winding faults, such as inter-turn winding faults in the stator and/or rotor of an electrical generator utilizes one or more vibration sensors that can be located on a generator housing. The vibration sensors make mechanical vibration measurements and transmit them to a fault analyzer. The fault analyzer can compare the measured vibrations with a threshold to determine if a winding is occurring. In an embodiment, the fault analyzer can convert the mechanical vibration measurements from the time domain to a frequency domain to facilitate analysis.

Disclosed is a method of monitoring a condition of objects in a piping system in which each object has a surface exposed to a product flowing through a pipe in the piping system. The method allows for the condition of each object to be monitored whilst the object remains in place. The method includes repeatedly measuring a resonance frequency of an oscillatory element of a vibratory device that is installed in the pipe and that exhibits a susceptibility to an impairment caused by accretion, abrasion, and/or corrosion corresponding to the respective susceptibilities of the objects. The resonance frequency of the vibratory device is reduced by accretion and increased by corrosion and by abrasion of its oscillatory element. The method further includes monitoring the condition of the objects based on the measured frequencies.

Disclosed is a method of monitoring a condition of objects in a piping system in which each object has a surface exposed to a product flowing through a pipe in the piping system. The method allows for the condition of each object to be monitored whilst the object remains in place. The method includes repeatedly measuring a resonance frequency of an oscillatory element of a vibratory device that is installed in the pipe and that exhibits a susceptibility to an impairment caused by accretion, abrasion, and/or corrosion corresponding to the respective susceptibilities of the objects. The resonance frequency of the vibratory device is reduced by accretion and increased by corrosion and by abrasion of its oscillatory element. The method further includes monitoring the condition of the objects based on the measured frequencies.

The fixing force evaluation method of the present embodiment includes the natural frequency measurement step of measuring the natural frequency of the stator in which the tooth portions and the stator coil are fixed by the insulating paper, and the fixing force evaluation step of evaluating that the fixing force of the insulating paper is larger, when the natural frequency of the stator measured in the natural frequency measurement step is equal to more than a predetermined determination frequency, compared to when the natural frequency is lower than the determination frequency. Thus, since the fixing force of the insulating paper is evaluated in the fixing force evaluation step based on the natural frequency of the stator measured in the natural frequency measurement step, the fixing force of the insulating paper can be evaluated by measuring the natural frequency of the stator without destroying the stator.