-
公开(公告)号：US20230134300A1
公开(公告)日：2023-05-04
申请号：US17516536
申请日：2021-11-01
发明人： Brian Burks , Sulochana Shrestha , Zack Prather
摘要： Disclosed is a system for monitoring a boss of a composite structure for a boss cracking event. The system includes a first sensor located on an outer surface of a neck of the boss and configured to detect first deformation data associated with the boss. The system also includes a second sensor located on the outer surface of the neck of the boss at a location diametrically opposite of the first sensor and configured to detect second deformation data associated with the boss. The system also includes a controller communicatively coupled to the first sensor and the second sensor and configured to determine, based on the first deformation data and the second deformation data, whether a boss cracking event has occurred.
-
公开(公告)号：US11639915B2
公开(公告)日：2023-05-02
申请号：US17018327
申请日：2020-09-11
摘要： The current disclosure determines if structural faults exist and extracts geometric features of the structural faults from acoustic emission waveforms, such as crack length and orientation, and can evaluate the structural faults online, during normal operation conditions.
-
公开(公告)号：US11624732B2
公开(公告)日：2023-04-11
申请号：US17238547
申请日：2021-04-23
申请人： KELK Ltd.
发明人： Tomonori Murata
摘要： A detection device includes a vibration sensor configured to detect vibration of a machine, a calculation unit configured to perform FFT analysis on detection data of the vibration sensor, divide a specific frequency range into a plurality of frequency ranges, and calculate a partial overall value for each of the plurality of frequency ranges, and a wireless communication device configured to transmit the partial overall value.
-
公开(公告)号：US11614410B2
公开(公告)日：2023-03-28
申请号：US17205672
申请日：2021-03-18
发明人： Paul Ziehl
摘要： Structural health monitoring (SHM)/nondestructive evaluation (NDE) exists as a tool in conjunction with manufactured pieces. Presently disclosed subject matter integrates automated video with a structural health monitoring system. In conjunction with bridge monitoring, integration of such two systems automates determination of the effect or correlation of vehicular loading on SHM data from a subject bridge. Such correlations help to understand the sources of structural health monitoring data, particularly acoustic emission data, in bridges and other structures, such as dams and nuclear plants. Automation of the evaluation of bridges and other structures increases accuracy and minimizes risk to workers and the public. Assessing the structural condition of bridges and other structures as presently disclosed also facilitates automated asset management of transportation systems, such as by state departments of transportation and other bridge/structural owners.
-
公开(公告)号：US20230043980A1
公开(公告)日：2023-02-09
申请号：US17964077
申请日：2022-10-12
发明人： Anthony J. Hayzen , Jim W. Walker
摘要： A computer-implemented process determines, based on bearing fault frequencies, optimum values for the maximum frequency (Fmax) and the number of lines of resolution (Nlines) to be used in collecting machine vibration data so as to adequately distinguish between spectral peaks for identifying faults in machine bearings. The process can be extended to any other types of fault frequencies that a machine may exhibit, such as motor fault frequencies, pump/fan fault frequencies, and gear mesh fault frequencies. Embodiments of the process also ensure that the time needed to acquire the waveform is optimized. This is particularly useful when collecting data using portable vibration monitoring devices.
-
公开(公告)号：US11569771B2
公开(公告)日：2023-01-31
申请号：US17186101
申请日：2021-02-26
IPC分类号： H02P25/032 , G01N29/14 , H03K19/20 , H03K3/037
摘要： According to one embodiment, a control apparatus for controlling a sensor that operates on power supplied by a power generator via an electric circuit including a rectifying and smoothing circuit converting AC power output from the power generator into DC power and a converter transforming an output voltage of the rectifying and smoothing circuit includes a first and a second signal generator and a controller. The first signal generator generates a first signal based on the output voltage of the rectifying and smoothing circuit. The second signal generator generates a second signal based on an output voltage of the converter. The controller switches an operation mode of the sensor between a sleep mode and an active mode based on the first and second signals.
-
公开(公告)号：US11569197B2
公开(公告)日：2023-01-31
申请号：US16478218
申请日：2018-02-02
发明人： Minoru Egusa , Shingo Sudo , Kazuyuki Hashimoto , Erubi Suzuki
摘要： An ultrasonic bonding apparatus includes an ultrasonic bonding machine having an ultrasonic tool for applying an ultrasonic wave to a bonding target member mounted on a fixed object fixed to a jig, while pressing a bonding member against the bonding target member; and a bonding inspection apparatus for inspecting a bonding quality of the bonding target member and the bonding member. The bonding inspection apparatus includes: a bonded-state measuring device for detecting a vibration in the jig or a housing of the ultrasonic bonding machine equipped with the jig, to thereby output a detection signal; and a bonded-state determination device for determining, in a bonding process for the bonding target member and the bonding member, a bonded state between the bonding target member and the bonding member on the basis of the detection signal outputted by the bonded-state measuring device.
-
公开(公告)号：US11531007B2
公开(公告)日：2022-12-20
申请号：US17157718
申请日：2021-01-25
发明人： Bret Anthony Dahme
摘要： Methods, apparatus, and articles of manufacture are disclosed. An example pre-amplifier includes a demodulator to combine a chirp signal with an acoustic emission signal to generate a sideband acoustic emission signal, sample spectral data of the sideband acoustic emission signal at an intermediate center frequency in an intermediate frequency bandwidth, and generate demodulated acoustic emission data based on mapping the sampled spectral data to a measurement center frequency, the measurement center frequency different from the intermediate center frequency, and a transmitter to transmit the demodulated acoustic emission data to a computing device.
-
公开(公告)号：US11506584B2
公开(公告)日：2022-11-22
申请号：US16060390
申请日：2016-01-29
摘要： A method for real time crush testing of proppants including loading proppant into an apparatus comprising: a body with a chamber to accept a piston and proppant; a pressure piston; a pressure transducer located in the bottom of the chamber; and a displacement sensor; compressing the proppant with the pressure; calculating the amount of proppant material in the proppant pack; increasing pressure on the proppant pack until the sample is crushed; calculating proppant strength from at least the displacement sensor data. An apparatus includes a body with a chamber to accept a piston and proppant; a pressure piston; a pressure transducer located in the bottom of the chamber; and a displacement sensor.
-
10.发明授权公开(公告)号：US11499944B2
公开(公告)日：2022-11-15
申请号：US17157714
申请日：2021-01-25
发明人： Bret Anthony Dahme
摘要： Methods, apparatus, and articles of manufacture are disclosed. An example pre-amplifier includes a demodulator to generate an oscillating signal having a measurement center frequency, combine an acoustic emission signal and the oscillating signal to generate a sideband acoustic emission signal, sample spectral data of the sideband acoustic emission signal at an intermediate center frequency in an intermediate frequency bandwidth, and generate demodulated acoustic emission data based on a mapping of the sampled spectral data to the measurement center frequency, the measurement center frequency different from the intermediate center frequency, and a transmitter to transmit the demodulated acoustic emission data to a computing device.
-
-
-
-
-
-
-
-
-
搜索结果
1227 条记录 (耗时 0.028 秒)