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1. 发明公开

EP4421538A1 METAL DETECTION APPARATUS WITH A TEST DEVICE AND TEST DEVICE 审中-公开
公开(公告)号：EP4421538A1
公开(公告)日：2024-08-28
申请号：EP23158451.7
申请日：2023-02-24
申请人： Mettler-Toledo Safeline Limited
发明人： Banks, Tom
IPC分类号： G01V3/10 , G01V13/00
CPC分类号： G01V3/107 , G01V13/00
摘要： The metal detection apparatus (1) comprises a detector housing (14) with an input aperture (11) and an output aperture (12) delimiting a transfer channel (10) along which products (P) are movable through a coil system (6) that defines a detection zone (60) and that comprises a transmitter coil (61) and a first and a second receiver coil (62, 63) dimensioned such that a current applied to the transmitter coil (61) induces a first receiver coil signal in the first receiver coil (62) and a second receiver coil signal in the second receiver coil (63), that do not compensate one another when a metal contaminant (C) is present in the detection zone (60), further comprising a test device (2) that comprises at least one test sample (S1, S2, ···) that is movable through the detection zone (60), a signal processing unit (4) for processing the receiver coil signals and for detecting signals relating to contaminants (C) and for detecting signals relating to the at least one test sample (S1, S2, ···), and comprising a control unit (5) for controlling measurement of products during normal operation and for controlling measurement of the at least one test sample (S1, S2, ···) during test intervals. According to the invention the test device (2) comprises a first reel unit (21) arranged at the input aperture (11) comprising a first reel drive unit (271), that is rotatably holding a first reel (291), a second reel unit (22) arranged at the output aperture (12) comprising a second reel drive unit (272), that is rotatably holding a second reel (292), and an elongated windable sample carrier (28) that is extending through the detection zone (60) and that has a first end, which is windably held by the first reel (291), that has a second end, which is windably held by the second reel (292), and that holds the at least one test sample (S1, S2, ···), and wherein either the first reel drive unit (271) or the second reel drive unit (272) is controllable by the control unit (5) to transfer the at least one test sample (S1, S2, ···) during test intervals through the detection zone (60), or the first reel drive unit (271) and the second reel drive unit (272) are controllable by the control unit (5) to transfer the at least one test sample (S1, S2, ···) during test intervals through the detection zone (60).

2. 发明授权

EP3797290B1 DETECTING SATURATION LEVELS OF A CORE SAMPLE USING MAGNETIC FIELDS 有权
公开(公告)号：EP3797290B1
公开(公告)日：2024-07-31
申请号：EP18786037.4
申请日：2018-09-24
IPC分类号： G01N27/74 , G01N33/24 , G01V3/08 , G01V3/10 , G01N15/08
CPC分类号： G01N15/0826 , G01N27/74 , G01V3/10 , G01V3/081 , Y02A90/30 , G01N15/082 , G01N33/24

3. 发明授权

EP3521863B1 METHOD FOR OPERATING A MULTI-FREQUENCY METAL DETECTOR AND MULTI-FREQUENCY METAL DETECTOR 有权
公开(公告)号：EP3521863B1
公开(公告)日：2024-07-10
申请号：EP18154719.1
申请日：2018-02-01
IPC分类号： G01V3/10
CPC分类号： G01V3/107

4. 发明授权

EP3380872B1 UTILITY LOCATING SYSTEMS, DEVICES, AND METHODS USING RADIO BROADCAST SIGNALS 有权
公开(公告)号：EP3380872B1
公开(公告)日：2024-07-10
申请号：EP16816053.9
申请日：2016-11-23
IPC分类号： G01V3/10 , G01V3/15
CPC分类号： G01V3/104 , G01V3/15

5. 发明公开

EP4332639A1 METAL DETECTION APPARATUS 审中-公开
公开(公告)号：EP4332639A1
公开(公告)日：2024-03-06
申请号：EP22193667.7
申请日：2022-09-02
申请人： Mettler-Toledo Safeline Limited
发明人： LYON, David
IPC分类号： G01V3/10
摘要： The metal detection apparatus comprises a balanced coil system with a transmitter coil (21) connected with a first coil terminal (211) and a second coil terminal (212) to a transmitter unit and with a first and a second receiver coil connected to an input of a receiver unit, whose output is connected to a signal processing unit, whose transmitter unit comprises a controllable frequency generator that provides an input signal with a selectable operating frequency to the input of an amplifier stage, whose output is connected to an excitation unit (14), which comprises a coupling transformer (143) with at least one input winding and at least one output winding having a terminal tapping (143T) and a plurality of intermediate tappings (143A, 143B, 143C) and which comprises a plurality of tuning capacitors (144A, 144B, 144C) and which comprises switching devices (141A, 142A; 141B, 142B; 141C, 142C), with which the output winding of the coupling transformer (143) and at least one of the tuning capacitors (144A, 144B, 144C) is connectable to the transmitter coil (21). According to the invention, a plurality of individually selectable excitation circuits is provided, each excitation circuit, when selected, comprising the transmitter coil (21), tapped windings of the output winding of the coupling transformer (143), one of the tuning capacitors (144A, 144B, 144C) connected to one another by a first semiconductor switching device (141A; 141B; 141C) and by a second switching device (142A; 142B; 142C) designed as an electromechanical relay, which are controllable by a channel selector (140) such that always one of the excitation circuits is selectable.

6. 发明授权

EP3572846B1 HIGH POWER TRANSFORMER AND TRANSMITTER FOR GEOPHYSICAL MEASUREMENTS 有权
公开(公告)号：EP3572846B1
公开(公告)日：2024-02-21
申请号：EP18305626.6
申请日：2018-05-22
发明人： PIERRAT, Ghislain
IPC分类号： G01V3/10 , H02M3/335

7. 发明授权

EP2707759B1 BURIED OBJECT LOCATOR APPARATUS AND SYSTEMS 有权转让
公开(公告)号：EP2707759B1
公开(公告)日：2023-11-29
申请号：EP12733243.5
申请日：2012-05-10
发明人： OLSSON, Mark , MEREWETHER, Ray , ALDRIDGE, Sequoyah , LEVIN, Ryan
IPC分类号： G01V3/00 , G01V3/15 , G01V3/10

8. 发明公开

EP4245900A3 VORRICHTUNG ZUR HERSTELLUNG EINES FADENS AUS EINEM GARN 审中-实审
公开(公告)号：EP4245900A3
公开(公告)日：2023-11-22
申请号：EP23183196.7
申请日：2020-10-05
申请人： RAFI GmbH & Co. KG
发明人： Heine, Martin , Meinusch, Kilian , Grimm, Michael
IPC分类号： G01P3/46 , G01V3/10 , D01H7/52 , D01H13/16
摘要： Die vorliegende Erfindung soll einen einfachen und kostengünstigen elektrischen Schaltkreis vorschlagen, der zur Detektion von elektrisch leitfähigen Gegenständen, etwa zur Erkennung des Umlaufs eingesetzt werden kann.
Dies gelingt, indem der zu detektierende Gegenstand als Modulator und ein Transistor als Demodulator in einem Schaltkreis wirkt, welcher im Wesentlichen aus einem Rückkopplungs-Oszillator besteht.

9. 发明授权

EP3726256B1 METHOD FOR OPERATING A METAL DETECTOR AND METAL DETECTOR 有权
公开(公告)号：EP3726256B1
公开(公告)日：2023-11-08
申请号：EP20169251.4
申请日：2020-04-14
发明人： Ktistis, Christos
IPC分类号： G01V3/10

10. 发明公开

EP4266284A1 SYSTEM AND METHOD FOR MONITORING PERSONAL MOBILITY VEHICLES IN URBAN ENVIRONMENTS 审中-实审
公开(公告)号：EP4266284A1
公开(公告)日：2023-10-25
申请号：EP21905864.1
申请日：2021-11-25
申请人： Universitat Politècnica de València
发明人： MOCHOLÍ SALCEDO, Antonio , MOCHOLÍ BERENGUER, Ferran , MARTINEZ MILLANA, Antonio , PEREZ FUSTER, Clara , MOYANO GOMEZ, Carlos
IPC分类号： G08G1/042 , G01V3/10
摘要： A system and method for monitoring personal mobility vehicles in urban environments, comprising a double magnetic coil (1), disposed at an area of personal mobility vehicle traffic, and connected to an oscillator circuit (2), a phase-locked loop (3), a signal conditioning circuit (4) and a signal processor (5); where the signal processor (5) is configured to calculate the temporal variation in voltage (V(t),V'(t)) produced in the phase-locked loop (3) and due to a variation in the oscillation frequency of the double magnetic coil (1) when at least one personal mobility vehicle passes said double magnetic coil (1); and to establish the type, speed, direction of travel and length of the personal mobility vehicle that has generated the variation in the oscillation frequency of the double magnetic coil (1).

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