-
公开(公告)号：US20180164403A1
公开(公告)日：2018-06-14
申请号：US15577569
申请日：2016-06-17
申请人： NEC CORPORATION
发明人： Hirofumi INOUE , Naofumi SUZUKI , Junichiro MATAGA
IPC分类号： G01S5/22
摘要： Signal measurement units each measure a signal output from a sound source, as a measured signal. Reference signal acquisition units each acquire a reference signal. A weighting processing unit creates weighted reference signals by weighting the reference signals. A time synchronization correction calculation unit calculates a time synchronization correction value based on the weighted reference signals. The time synchronization correction value is a correction value for synchronizing the two measured signals. An arrival time difference calculation unit calculates an arrival time difference based on the time synchronization correction value. The arrival time difference is a difference between elapsed times for the two measured signals acquired by respective ones of the pair of signal measurement units to arrive at the respective ones of the pair of signal measurement units. A sound source position calculation unit calculates a position of the sound source based on the arrival time difference.
-
公开(公告)号：US20180164258A1
公开(公告)日：2018-06-14
申请号：US15841040
申请日：2017-12-13
发明人： Mark Feydo , Jeffrey Anderson , James Barshinger
IPC分类号： G01N29/265 , G01M3/24 , H04B11/00 , H03M1/02
CPC分类号： G01N29/265 , G01B17/04 , G01M3/24 , G01M3/243 , G01N29/02 , G01N29/04 , G01N29/043 , G01N29/0645 , G01N29/22 , G01N29/2481 , G01N29/34 , G01N29/36 , G01N29/40 , G01N29/44 , G01N2291/0258 , G01N2291/044 , H03M1/02 , H04B11/00
摘要： A sensor for ultrasonically measuring a portion of a structure, the sensor comprising: a transducer for converting an analog transmit signal to an ultrasonic transmit signal, and for converting an ultrasonic reflected signal to an analog reflected signal; a housing integrated with the transducer and containing at least: a processor; a wireless data transmitter for transmitting wirelessly a data signal from the processor; a transmit and receive circuit for transmitting an analog transmit signal to the transducer in response to a transmit trigger from the processor, and for receiving an analog reflected signal from the transducer; an A/D converter for digitizing only a portion of the analog reflected signal in response to a sample trigger from the processor; a battery to supply power to the processor, the wireless data transmitter, the transmit and receive circuit, and the A/D converter; memory operatively connected to the processor and configured to instruct the processor to execute the following steps: repeatedly triggering the transmit and receive circuit and the A/D converter to obtain a digitized composite signal through time-equivalent sampling; processing the digitized composite reflected signal to generate an A-scan signal; and wirelessly transmitting the data signal based on the A-scan signal for transmission to a discrete collection device.
-
公开(公告)号：US09863835B2
公开(公告)日：2018-01-09
申请号：US15146991
申请日：2016-05-05
申请人： Hyundai Motor Company , IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
发明人： Tae Ho Kim , Yunsang Kwak , Sangkeun Ahn , Junhong Park
摘要： A hole detection method of a vehicle and a system performing the same may include positioning an air injection nozzle at a predetermined position of a vehicle body and positioning a sound sensor at a position corresponding to the air injection nozzle, injecting an air jet from the air injection nozzle, detecting a sound wave from the sound sensor, and calculating a characteristic of a water leakage hole formed on the vehicle body by using the sound wave detected from the sound sensor.
-
公开(公告)号：US09823158B2
公开(公告)日：2017-11-21
申请号：US14589621
申请日：2015-01-05
申请人： Radiaulics, Inc.
摘要： A system for ultrasonic leak detection employs a number of ultrasonic signal generators, each of which include an ultrasonic transducer generating an ultrasonic signal and an audio transducer generating an audio signal in the frequency range of human hearing that is a replica of the ultrasonic waveform. The ultrasonic signal generators are activated and placed at selected locations within the enclosure to be tested. The operator can listen for the audio signal to verify operation and the output waveform type of the ultrasonic signal generators. A mobile ultrasonic leak detector can then be employed outside the enclosure to detect any leakage of the ultrasonic signal through the enclosure wall to identify any leak paths.
-
公开(公告)号：US09798030B2
公开(公告)日：2017-10-24
申请号：US14139860
申请日：2013-12-23
发明人： Svein A. Haugen , Jens Abrahamsen , Geir K. Nilsen
CPC分类号： G01V1/40 , E21B44/00 , E21B47/0001 , E21B47/101 , G01M3/24 , G01V2200/16
摘要： Systems and methods for monitoring subsea equipment are described herein. In one embodiment, such a system can include a plurality of acoustic sensor arrays that each include at least two acoustic sensors, wherein at least a first acoustic sensor array is mounted on an outer surface of subsea equipment being monitored and at least a second acoustic sensor array is positioned remote from the subsea equipment. The system can also include a digital data processor in communication with the plurality of acoustic sensor arrays, the digital data processor can be configured to process data from selected sensors of the plurality of acoustic sensor arrays to both selectively focus on a portion of the subsea equipment and to determine a point of origin of an acoustic signal. The system can be particularly useful in detecting leaks and other events in subsea drilling equipment.
-
公开(公告)号：US20170299460A1
公开(公告)日：2017-10-19
申请号：US15474314
申请日：2017-03-30
发明人： John Duerr , Richard Regan , Robert E. Cannuscio
CPC分类号： G01M3/24 , G01H3/12 , G01M3/007 , G01M3/246 , G01N29/22 , G01N29/226 , G01N29/24 , G10K11/35
摘要： An ultrasonic detector has a housing containing a transducer, a battery or other power supply, and any other necessary electronics. At a front end of the housing is a socket into which one of a plurality of interchangeable probes can be inserted. At the rear end of the housing, there is a handle by which an operative can hold the detector in use. On the inside of the housing, extending at least partially into the handle, is an elongate chamber within which at least one probe can be stored. A cover of the handle closes a rear end of the probe storage chamber and can be removed to expose a portion of the probe storage chamber and allow a probe to be inserted or removed.
-
公开(公告)号：US20170285665A1
公开(公告)日：2017-10-05
申请号：US15085688
申请日：2016-03-30
CPC分类号： G01M3/26 , E03B7/071 , G01F15/063 , G01M3/24
摘要： The disclosed embodiments describe a method, apparatus, and system for water management. At least one smart aquameter may be used to connect to a plumbed water system. The smart aquameter may measure a variety of sensor data, process, analyze, store, report, or control information related to the water system. The acoustic, pressure, and temperature characteristics of water in a plumbed system, amongst other things, may be used to identify which outlet is using water, for how long, and how much. This information, along with other relevant information, may be utilized to report, alert, optimize, inform, educate, and regulate the water system, for consumers, utility companies, and resource agencies.
-
公开(公告)号：US09772251B2
公开(公告)日：2017-09-26
申请号：US14780126
申请日：2014-03-20
申请人： NEC Corporation
摘要： A vibration detection device (10) is provided with a vibration detection unit (110), a sensor-side leak determination unit (120), a first transmission unit (130), and a second transmission unit (140). The vibration detection unit (110) detects vibration transmitted through piping (30). The sensor-side leak determination unit (120) determines whether or not there is a possibility of a leak in the piping (30) based on a measurement result of the vibration detection unit (110). When the sensor-side leak determination unit (120) determines that there is a possibility of a leak, the first transmission unit (130) transmits provisional leak information to an information processing device (20). The provisional leak information indicates that there is a possibility of a leak in the piping (30). When waveform request information indicating a request for waveform data of the vibration is received from the information processing device (20), the second transmission unit (140) transmits waveform data measured by the vibration detection unit (110) to the information processing device (20).
-
公开(公告)号：US20170138151A1
公开(公告)日：2017-05-18
申请号：US14942404
申请日：2015-11-16
CPC分类号： E21B34/02 , E21B33/0355 , E21B33/06 , E21B34/04 , F15B19/005 , F16K37/0041 , G01M3/24
摘要： An apparatus and method for monitoring valve operation. In one embodiment, an apparatus for monitoring valve operation includes a first acoustic sensor and a monitoring system. The first acoustic sensor is to couple to a valve to detect vibration of the valve. The monitoring system is communicatively coupled to the first acoustic sensor. The monitoring system is configured to receive a signal generated by the first acoustic sensor. The signal is representative of vibration of the valve. The monitoring system is also configured to identify leakage in the valve based on the signal.
-
公开(公告)号：US20170121949A1
公开(公告)日：2017-05-04
申请号：US15401457
申请日：2017-01-09
CPC分类号： G01M3/00 , B26F1/14 , E03B7/003 , E03B7/071 , E03B9/02 , E03B9/06 , G01F17/00 , G01M3/24 , G01M3/243 , H01Q1/225 , H01Q1/2291 , H01Q1/38 , H01Q1/42 , Y02A20/15 , Y10T83/04
摘要： A nozzle cap assembly includes a nozzle cap configured to mount on a fire hydrant, the nozzle cap housing defining an inner surface and an outer surface, the inner surface defining a nozzle cap cavity within the nozzle cap; an antenna enclosure mounted to the nozzle cap, a portion of the antenna enclosure disposed external to the nozzle cap; and an antenna positioned within the antenna enclosure.
-
-
-
-
-
-
-
-
-
搜索结果
402 条记录 (耗时 0.021 秒)