-
1.发明授权公开(公告)号：US09256003B2
公开(公告)日：2016-02-09
申请号：US14235332
申请日：2013-01-17
Applicant: SHANDONG UNIVERSITY
Inventor： Shucai Li , Bin Liu , Lichao Nie , Qingmei Sui , Jie Song , Tingyu Hao , Yuqiang Cao , Faye Zhang , Jing Wang , Zhengyu Liu , Huaifeng Sun
Abstract: The invention discloses three-dimensional focusing induced polarization equipment for advance geological prediction of a water inrush disaster source in underground engineering, comprising a constant-current multiplex transmitter, an intelligent multichannel receiver, an automatic multi-electrode switch, an industrial personal computer, an observation electrode array and shielding electrodes, wherein electrodes in the observation electrode array are respectively used as a source electrode and observation electrodes; the industrial personal computer controls the constant-current multiplex transmitter to transmit currents of the same polarity to the shielding electrodes and the source electrode, so that the currents of the source electrodes are nearly directed straight ahead of a driving face under the action of the shielding electrodes; the observation electrodes are used for scanning data acquisition, and the data are fed back to the industrial personal computer through the intelligent multi-channel receiver; and the industrial personal computer controls the automatic multi-electrode switch to change the source electrode.
Abstract translation: 本发明公开了一种用于地下工程中水冲击灾害源的预测地质预测的三维聚焦诱导极化装置，包括恒流多路发射器，智能多通道接收器，自动多电极开关，工业个人计算机， 观察电极阵列和屏蔽电极，其中观察电极阵列中的电极分别用作源电极和观察电极; 工业个人计算机控制恒流多路复用发射机，将相同极性的电流传输到屏蔽电极和源电极，使得源电极的电流在屏蔽作用下几乎直接位于驱动面前方 电极 观察电极用于扫描数据采集，数据通过智能多通道接收机反馈给工业个人计算机; 并且工业个人计算机控制自动多电极开关来改变源电极。
-
公开(公告)号：US12062167B1
公开(公告)日：2024-08-13
申请号：US18398665
申请日：2023-12-28
Applicant: SHANDONG UNIVERSITY
Inventor： Mingshun Jiang , Lingyu Sun , Shanshan Lv , Juntao Wei , Lei Zhang , Faye Zhang , Qingmei Sui , Lei Jia
CPC classification number: G06T7/001 , G06T5/20 , G06T5/70 , G06T7/74 , G06T7/77 , G06T2207/10132 , G06T2207/20076 , G06T2207/30108
Abstract: A probability multiply-sum structural damage imaging positioning method and system based on a delay factor includes obtaining optimal excitation frequency and group-velocity theoretical correction function based on numerical simulation of composite laminates; based on optimal excitation frequency, obtaining ultrasonic guided wave response signals of composite laminates in healthy and lossy states and sensor coordinates used for signal collection; performing path screening based on ultrasonic guided wave response signals; obtaining group-velocity correction function based on measured group velocity obtained based on ultrasonic guided wave response signal in healthy state, and calculating actual delay time based on obtained effective path, group-velocity correction function, and sensor coordinates; obtaining damage delay factor based on actual and reference delay time; forming path probability distribution based on damage delay factor, and performing path probability multiply-sum operation to obtain structural damage imaging result; and obtaining structural damage positioning result based on peak point coordinates of imaging result.
-
公开(公告)号：US12000799B1
公开(公告)日：2024-06-04
申请号：US18400246
申请日：2023-12-29
Applicant: SHANDONG UNIVERSITY
Inventor： Mingshun Jiang , Juntao Wei , Feiyu Teng , Shanshan Lv , Lingyu Sun , Lei Zhang , Faye Zhang , Qingmei Sui , Lei Jia
IPC: G01N29/24
CPC classification number: G01N29/2437
Abstract: A digital, self-diagnosis, sensing intelligent layer integrating active and passive monitoring, including: a capacitance testing unit, configured to charge a to-be-tested piezoelectric transducer by generating a step signal, and determine a transition moment, to obtain a free capacitance value of the to-be-tested piezoelectric transducer; a frequency testing unit, to charge the to-be-tested piezoelectric transducer by generating sinusoidal signals of different frequencies, and detect a resonant frequency according to the transition moment; an active and passive monitoring module, to obtain analog response signals in an active mode and a passive mode, and convert the analog response signals into digital response signals for transmission; and a main control module, to transmit a self-diagnosis result and the digital response signals to a guided wave host. The intelligent layer integrates active damage scanning and passive impact monitoring while implementing self-diagnosis for a piezoelectric transducer state.
-
4.发明申请公开(公告)号：US20150077119A1
公开(公告)日：2015-03-19
申请号：US14235332
申请日：2013-01-17
Applicant: SHANDONG UNIVERSITY
Inventor： Shucai Li , Bin Liu , Lichao Nie , Qingmei Sui , Jie Song , Tingyu Hao , Yuqiang Cao , Faye Zhang , Jing Wang , Zhengyu Liu , Huaifeng Sun
Abstract: The invention discloses three-dimensional focusing induced polarization equipment for advance geological prediction of a water inrush disaster source in underground engineering, comprising a constant-current multiplex transmitter, an intelligent multichannel receiver, an automatic multi-electrode switch, an industrial personal computer, an observation electrode array and shielding electrodes, wherein electrodes in the observation electrode array are respectively used as a source electrode and observation electrodes; the industrial personal computer controls the constant-current multiplex transmitter to transmit currents of the same polarity to the shielding electrodes and the source electrode, so that the currents of the source electrodes are nearly directed straight ahead of a driving face under the action of the shielding electrodes; the observation electrodes are used for scanning data acquisition, and the data are fed back to the industrial personal computer through the intelligent multi-channel receiver; and the industrial personal computer controls the automatic multi-electrode switch to change the source electrode.
Abstract translation: 本发明公开了一种用于地下工程中水冲击灾害源的预测地质预测的三维聚焦诱导极化装置，包括恒流多路发射器，智能多通道接收器，自动多电极开关，工业个人计算机， 观察电极阵列和屏蔽电极，其中观察电极阵列中的电极分别用作源电极和观察电极; 工业个人计算机控制恒流多路复用发射机，将相同极性的电流传输到屏蔽电极和源电极，使得源电极的电流在屏蔽作用下几乎直接位于驱动面前方 电极 观察电极用于扫描数据采集，数据通过智能多通道接收机反馈给工业个人计算机; 并且工业个人计算机控制自动多电极开关来改变源电极。
-
-
-
Search Results
4
records
(took 0.016 seconds)
