公开(公告)号：EP4332588A1

公开(公告)日：2024-03-06

申请号：EP22306307.4

申请日：2022-09-02

申请人： Université de Rennes ,  Centre National de la Recherche Scientifique ,  Institut National des Sciences Appliquées de Rennes ,  NANTES UNIVERSITÉ ,  CentraleSupélec

发明人： BORYSKIN, Artem ,  ZIANE, Massinissa ,  SAULEAU, Ronan ,  ZHADOBOV, Maxim

IPC分类号： G01R29/08

摘要： The invention relates to a device and method for measuring an electromagnetic dosimetric quantity received by an object illuminated by an electromagnetic (EM) field (23) emitted by an electromagnetic source (2), comprising:
- a screen (3) comprising a top surface (31) faced to the electromagnetic source (2) and a bottom surface (32) opposite to the top surface (31), said screen (3) being adapted to absorb at least a portion of the EM field emitted by the electromagnetic source (2);
- the screen comprising a plurality unit cells (33);
- at least one thermal sensor (5) arranged relative to the bottom surface of the screen (3) and configured to measure a physical quantity relative to the heat distribution along a surface of the screen induced due to the absorption of the electromagnetic field in the screen medium;
- a processing unit (6) linked to the at least one thermal sensor (5) and configured to calculate the electromagnetic dosimetric quantities from the measured heat distribution, the information relative to the EM field emitted by the EM source, and the predetermined EM and thermal properties of the screen.

公开(公告)号：EP4354158A1

公开(公告)日：2024-04-17

申请号：EP22306552.5

申请日：2022-10-13

申请人： Université de Rennes ,  Centre national de la recherche scientifique ,  Institut National des Sciences Appliquées de Rennes ,  Nantes Université ,  CentraleSupélec

发明人： BORYSKIN, Artem ,  ZIANE, Massinissa ,  SAULEAU, Ronan ,  ZHADOBOV, Maxim

IPC分类号： G01R29/08 ,  G01N25/72

CPC分类号： G01N25/72 ,  G01R29/0857 ,  G01R29/0892

摘要： Method for retrieving a useful signal from a bulk response signal emitted by a target subjected to an excitation signal, comprising:
- providing a first excitation signal (3a, 3b, 3c) at least modulated at a frequency Flock during a first period of time (t1) corresponding to a transient mode of a response signal and causing a first bulk response signal (4a, 4b, 4c) and recording said first bulk response signal,
- calculating a first Fourier transform FT{ΔT(t)} (10a, 10b, 10c) of said bulk response signal in response to said first excitation signal during said first period to provide a first spectrum of an exponential term (fe(ω)) (5a, 5b, 5c) a first spectrum of ambient noise (fn(ω)) (7) and a first spectrum of a useful signal (fp(ω)) (6a, 6b, 6c) in said first measured bulk response signal,
- extracting said first spectrum of a useful signal (fp(ω)) (6a, 6b, 6c) through removing said first spectrum of the exponential term (fe(ω)) (5a, 5b, 5c) from said first Fourier transform