-
公开(公告)号：WO2018127488A1
公开(公告)日：2018-07-12
申请号：PCT/EP2018/050055
申请日：2018-01-02
发明人： LEIJSSEN, Jacobus, Josephus , DOODEMAN, Gerardus, Johannes, Nicolaas , BEZEMER, Rick , KLEIJNEN, Mark , PEETERS, Wouter, Herman
摘要： The invention provides a magnetic inductive sensing device (30) comprising a loop antenna (10) for inductively coupling with electromagnetic (EM) signals emitted from a medium in response to stimulation of the medium with electromagnetic excitation signals. The device includes an electromagnetic shield (36) element which is arranged such as to intercept electromagnetic signals travelling to or from the antenna. The shield element is formed of conductive material such as to block electrical field components of incident signals but further incorporates a non-conductive gap in the material so as to prevent the formation of eddy currents. A loop of the antenna is broken by an opening, the opening being bridged by a capacitor, and the device comprises a signal processing means which is electrically coupled to the antenna via only a single point of the antenna, located to one side of the opening.
-
公开(公告)号：WO2020058335A1
公开(公告)日：2020-03-26
申请号：PCT/EP2019/075007
申请日：2019-09-18
IPC分类号： B63B59/04 , F21V23/04 , G01F23/26 , G01F23/292 , B08B17/02 , F21V23/02 , F21V31/00 , F21W107/20 , F21Y105/16 , F21Y115/10
摘要： An anti-fouling lighting system is used for protecting a surface (16) against biofouling while the surface (16) is submerged in water. A non-contact water sensor (60) is used for sensing water thereby to detect whether or not a light source arrangement (26), or a portion of the light source arrangement (26), is submerged in water. The light source arrangement (26), or the portion of the light source arrangement (26), is controlled in dependence on the water sensor (60) output.
-
公开(公告)号：WO2019243213A1
公开(公告)日：2019-12-26
申请号：PCT/EP2019/065797
申请日：2019-06-17
发明人： DOODEMAN, Gerardus, Johannes, Nicolaas , KLEIJNEN, Mark, Peter, Paul , LEIJSSEN, Jacobus, Josephus , GROSFELD, Ronny, Hubertus, Johannes , PEETERS, Wouter, Herman , BEZEMER, Rick
IPC分类号： A61B5/04
摘要： An inductive sensing device (22) is for sensing at two different frequencies. The device includes an antenna (24) which comprises at least two loop parts (30, 32), each loop part coupled to a different respective tuning capacitor (36a, 36b) to thereby provide different respective resonant frequencies for the first and second loop parts. The two loop parts are jointly connected to a shared input connection (38) for receiving driving signals for driving both antenna parts. A control means (44) controls a drive circuit (34) to supply the antenna, via the shared input connection, drive signals of each of the frequencies, implementing switching between the two.
-
公开(公告)号：WO2018137977A1
公开(公告)日：2018-08-02
申请号：PCT/EP2018/051041
申请日：2018-01-17
发明人： LEIJSSEN, Jacobus, Josephus , BEZEMER, Rick , KAHLMAN, Josephus, Arnoldus, Henricus, Maria , DOODEMAN, Gerardus, Johannes, Nicolaas , KROON, Bart
CPC分类号： A61B5/7203 , A61B5/024 , A61B5/05 , A61B5/053 , A61B5/0816 , A61B5/7228 , A61B5/7235 , A61B5/7271 , H01Q3/2682 , H04B5/0043
摘要： According to an aspect, there is provided a method of measuring a physiological characteristic of a subject, the method comprising obtaining a set of RF signal measurements for RF signals transmitted into a part of a body of the subject, wherein a RF signal is transmitted sequentially from each of a plurality of transmitting positions with respect to the body of the subject, and wherein each transmitted RF signal is received at a plurality of receiving positions with respect to the body of the subject, wherein each RF signal measurement is based on a comparison of a phase and/or amplitude of each received RF signal to a phase and/or amplitude of the corresponding transmitted RF signal, wherein the set of RF signal measurements comprises a respective subset of RF signal measurements for each transmitted RF signal, wherein the RF signal measurements in a subset correspond to the RF signal measurements for the RF signals received at each of the plurality of receiving positions; applying, by a control unit, a set of time delays, a set of receiver beam steering parameters and a set of transmitter beam steering parameters to the set of RF signal measurements to form a virtual steered beam, wherein the set of time delays comprises a time delay for each subset, wherein each time delay is based on a timing of the transmission of the respective transmitted RF signal; wherein the set of receiver beam steering parameters comprises respective phase and/or amplitude adjustments to be applied to the RF signal measurements in a subset to effect the focusing of a beam formed from the received RF signals for the subset at a measurement position in the body of the subject, and wherein the set of transmitter beam steering parameters comprises respective phase and/or amplitude adjustments to be applied to the subsets to correspond to the focusing of a beam formed from the transmitted RF signals at a measurement position in the body of the subject; and determining, by a control unit, a measurement of the physiological characteristic of the subject from the virtual steered beam.
-
5.发明申请
公开(公告)号：WO2018127524A1
公开(公告)日：2018-07-12
申请号：PCT/EP2018/050157
申请日：2018-01-04
摘要： According to an aspect, there is provided a stethoscope apparatus stethoscope apparatus, the stethoscope apparatus comprising a sound sensor for measuring sounds produced by the breathing of a subject and for outputting a sound signal representing the measured breathing sounds; an antenna for receiving a modulated electromagnetic signal from the body, wherein the modulated electromagnetic signal is modulated by movement of air, fluid and/or tissue in the body; a processing unit that is configured to receive the sound signal from the sound sensor and the modulated electromagnetic signal from the antenna; and normalise the sound signal using the modulated electromagnetic signal.
-
公开(公告)号：WO2018127482A1
公开(公告)日：2018-07-12
申请号：PCT/EP2018/050044
申请日：2018-01-02
发明人： PEETERS, Wouter, Herman , KLEIJNEN, Mark , DOODEMAN, Gerardus, Johannes, Nicolaas , BEZEMER, Rick , LEIJSSEN, Jacobus, Josephus , GROSFELD, Ronny, Hubertus, Johannes
摘要： The invention provides a magnetic inductive sensing system for sensing electromagnetic signals emitted from a body in response to electromagnetic excitation signals applied to the body. The electromagnetic signals are generated and sensed by the same loop resonator which comprises a single-turn loop antenna and a tuning capacitor. The loop antenna of the resonator and a signal generation means for exciting the resonator to generate excitation signals are together configured so as to optimize the value of a ratio between the radial frequency of the generated electromagnetic excitation signals and a reference frequency of the antenna, where the reference frequency is the frequency for which one wavelength of the generated excitation signals (waves) matches the circumferential length of the antenna. This ratio, which corresponds to a normalized radial frequency of the generated excitation signals, is maintained between a value of 0.025 and 0.50.
-
7.发明申请
公开(公告)号：WO2018019648A1
公开(公告)日：2018-02-01
申请号：PCT/EP2017/068068
申请日：2017-07-18
发明人： LEIJSSEN, Jacobus, Josephus , BEZEMER, Rick , DOODEMAN, Gerardus, Johannes, Nicolaas , VAN DER WAL, Roelf
CPC分类号： A61B5/05 , A61B5/02438 , A61B5/0809 , A61B5/0816 , A61B5/7203 , A61B2562/182
摘要： Disclosed is a device for monitoring a physiological parameter of a subject. The device comprises an excitation unit comprising, an excitation ferromagnetic core (201) and a first excitation coil wound thereon, said excitation core being shaped to generation a first concentrated electromagnetic field on a first side of the excitation unit, the first excitation coil being configured to create spatially concentrated electromagnetic field in a region of interest within a body tissue of the subject, the excitation unit further comprising a first detection coil arranged to generate a first receiver signal from a secondary electromagnetic field which is modulated by the physiological parameter and originates from first concentrated electromagnetic field within the region of interest, the first detection coil being on the first side of the excitation unit and orthogonally oriented with respect to the first excitation coil and in alignment with the secondary magnetic field, where the monitoring device is arranged to generate a physiological parameter signal from the first receiver signal.
摘要翻译： 公开了一种用于监视对象的生理参数的设备。 该装置包括激励单元，该激励单元包括激励铁磁芯（201）和缠绕在其上的第一激励线圈，所述激励芯被成形为在激励单元的第一侧上产生第一集中电磁场，第一激励线圈被配置 以在所述对象的身体组织内的感兴趣区域中创建空间集中的电磁场，所述激励单元进一步包括第一检测线圈，所述第一检测线圈被布置为从次生电磁场生成第一接收器信号，所述第二接收器信号由所述生理参数调制并源自 在感兴趣区域内的第一集中电磁场，第一检测线圈在激励单元的第一侧上并且相对于第一激励线圈正交地定向并且与次级磁场对准，其中监测装置被布置为产生 来自fi的生理参数信号 第一个接收器信号。
-
公开(公告)号：WO2020058333A1
公开(公告)日：2020-03-26
申请号：PCT/EP2019/075002
申请日：2019-09-18
IPC分类号： F21V23/00 , B63B59/06 , B63B59/04 , B08B17/02 , H05B37/00 , F21V31/00 , F21V7/05 , F21W107/20 , F21Y105/16 , F21Y115/10
摘要： In the context of anti-biofouling of marine objects, a light emitting unit is configured to be applied to a surface area of a marine object and comprises at least one light source (12, 13) configured to emit anti-fouling light, and two electrically conductive plates (14, 15), wherein the at least one light source (12, 13) is at the one side electrically connected to one of the plates (14, 15) and at the other side to an electric energy distribution arrangement of the light emitting unit. The plates (14, 15) are arranged to constitute respective capacitors (21, 22) with an electrically conductive surface area of, or over, the marine object, said capacitors (21, 22) being connected in series through the electrically conductive surface area once the light emitting unit is actually applied to a surface area of a marine object.
-
9.发明申请
公开(公告)号：WO2020058332A1
公开(公告)日：2020-03-26
申请号：PCT/EP2019/075000
申请日：2019-09-18
IPC分类号： B63B59/04 , B08B17/02 , F21V23/02 , H02J50/10 , F21Y105/16 , F21Y115/10 , F21V31/00 , F21W107/20
摘要： An antifouling system for reducing and/or preventing fouling of an object exposed to fouling conditions when in use, comprising a plurality of antifouling devices (26) for providing an antifouling radiation to at least part of the object and/or at least part of the antifouling system; wherein the antifouling system further comprises: - a power transmission system comprising: - an inductive power emitter (10) comprising at least one inductive emitter element (12); and - a plurality of inductive power receivers (24) each one comprising at least one inductive receiver element;wherein the inductive power emitter and the plurality of inductive power receivers are for mounting on the object in a fixed configuration with respect to each other thereby to provide an inductive coupling between each one of the at least one inductive receiver elements and the at least one inductive emitter element such that power may be inductively transmitted when the power transmission system is in use; andwherein the plurality of antifouling devices (26) are configured to be driven using transmitted power from at least one of the plurality of inductive power receivers when the system is in use.
-
公开(公告)号：WO2018138171A1
公开(公告)日：2018-08-02
申请号：PCT/EP2018/051762
申请日：2018-01-25
发明人： LEIJSSEN, Jacobus, Josephus , BEZEMER, Rick , KAHLMAN, Josephus, Arnoldus, Henricus, Maria , DOODEMAN, Gerardus, Johannes, Nicolaas , KROON, Bart
CPC分类号： A61B5/7203 , A61B5/024 , A61B5/05 , A61B5/0816 , A61B5/7228 , A61B5/7242 , A61B5/7257 , H04B5/0043 , H04B7/0617
摘要： According to an aspect, there is provided a method of measuring a physiological characteristic of a subject, the method comprising controlling a first array of transducers to transmit radio frequency, RF, signals into a part of a body of the subject such that the energy of the RF signals is focused at a measurement position in the part of the body; receiving modulated RF signals from the part of the body of the subject using a second array of transducers, wherein the modulated RF signals are modulated by fluid movements in the part of the body; combining the received modulated RF signals into a first combined RF signal that originates from the measurement position in the part of the body; and analysing the first combined RF signal to determine a measurement of the physiological characteristic of the subject.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.012 秒)
