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1 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine.

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Presentation on theme: "1 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine."— Presentation transcript:

1 1 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua First Experiments with Galvanomagnetic Instrumentation on the Tore Supra and the JET Fusion Facilities I.Bolshakova 1, V.Coccorese 2, I.Duran 3, S.Gerasimov 4, R.Holyaka 1, P.Moreau 5, A. Murari 6, F. Saint-Laurent 5, J. Stockel 3 1. Magnetic Sensor Laboratory (LPNU); 1 Kotliarevsky Str, Lviv, 79013, UKRAINE 2..Association EURATOM-ENEA(CREATE), Via Claudio 21, I-80125 Napoli, ITALY 3. IPP Prague, Association EURATOM/IPP.CR, Za Slovankou 3, 182 00 Praha 8, CZECH REPUBLIC 4. Euratom/UKAEA Association, Fusion Culham Science Centre, Abingdon, OX14 3EA, UK 5. Association EURATOM-CEA, Cadarache, 13108 Saint Paul Lez Durance, FRANCE 6.Consorzio RFX, Associazione ENEA-EURATOM per la Fusione, Corso Stati Uniti 4, 37125 Padova, ITALY

2 2 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Contents Abbreviated notations: GI – Galvanomagnetic Instrumentation HT – Hall Transducer IMT – Integrated Magnetic Transducer 1.Statement of the problem 2.Galvanomagnetic Instrumentation: requirements & solutions 3.Integrated Magnetic Transducer & Intelligent Functions 4.Experiments with GI on TORE SUPRA, Cadarache (France) 5.Experiments with GI on JET, Culham (UK) 6.GI electronics & parameters 7.New High Frequency Magnetic Transducer 8.Next steps 9.Conclusion and acknowledgments

3 3 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Statement of the problem Two main requirements for magnetic field measurements in fusion reactors of next generation: first – the necessity to perform accurate magnetic field measurements at steady state (quasi-stationary mode) with the duration up to 3600 s; second – operation reliability at a considerable level of penetrating radiation. These requirements make it difficult to use only the traditional inductive methods based on pick-up coils and integrators. To solve this problem the galvanomagnetic transducers, namely transducers based on the Hall effect, can supplement the existing magnetic field system based on the traditional inductive coils, since they do not have any particular restriction with regard to quasi-stationary and steady-state magnetic field measurements.

4 4 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Galvanomagnetic Instrumentation: Requirements & Solutions 1. Special Hall Transducers for extreme operation conditions 2. In-situ calibration 3. Wide-band magnetic field measurement 4. Multi-channel measurement 5. High precision of measurement under considerable noise conditions 6. Signal transfer over long distances

5 5 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia 1 – Hall Sensor 2 – Coil 3 – Substrate 4 – Pins Integrated Magnetic Transducer & Intelligent Functions 1.Magnetic field measurement in high rate mode (real time mode). 2.Magnetic field measurement in high precision mode (correction mode). 3.Selftesting by formation & measurement of test magnetic field. 4.Transducing function correction. 5.Temperature measurement. 6.Combination of galvanomagnetic and electromagnetic measurements in united system. Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua

6 6 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Transducing function: a j - coefficients of the polynomial series V He = G  V Ho, G - drift factor Transducing function correction

7 7 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua 3D Integrated Magnetic Transducer

8 8 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua MSL Galvanomagnetic Instrumentation

9 9 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua MX – Multiplexer CN – Control module CS1, 2 – Current source 1, 2 SD – Synchrodetector HA – High frequency amplifier HC – High frequency ADC LA – Low frequency amplifier LC – Low frequency ADC ST –Stabilizer SI – Serial interface OP – Optical isolator PS – Power supply unit IMT – Integrated Magnetic Transducer TL1, 2 – Transmission line 1, 2 MSL GI Electronics

10 10 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Experiments with GI on TORE SUPRA, Cadarache (France) Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua 3D IMT location – on the surface of poloidal field coil just outside the TS vessel together with the reference 3D coil system

11 11 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The results of magnetic field measurement on TORE SUPRA (low frequency mode)

12 12 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The results of magnetic field measurement on TORE SUPRA (selfdiagnostic)

13 13 see next slide 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The results of magnetic field measurement on TORE SUPRA (HF mode, pulse #34085)

14 14 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua scale is enlarged The results of magnetic field measurement on TORE SUPRA (HF mode, pulse #34085)

15 15 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The results of magnetic field measurement on TORE SUPRA (HF mode, pulse #34073)

16 16 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The results of magnetic field measurement on TORE SUPRA (HF mode, pulse #34073) scale is enlarged

17 17 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The same pulse (#34073) getting by coil techniques

18 18 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua … and temperature measurements (only for resolution representing)

19 19 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Experiments with GI on JET, Culham (UK) 3D IMT location

20 20 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua MSL GI on JET

21 21 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The results of magnetic field measurement on JET

22 22 In-vessel measurements using MSL 3D Hall probe 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua CASTOR collaboration

23 23 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua GI Electronics and Software in details … if it is possible from the time point of view

24 24 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua 8-channels signal conversion for 3D IMT K v =10 @ V inp < 150 mV HF Signal compression K v =1 @ V inp > 150 mV

25 25 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua ADuC 824 MicroConverter™, 24-Bit ADC with FLASH MCU GI: Signal Processing Components AD855X, Zero drift OA AD7663, 16-Bit, 250kSPS ADC Intelligent Sensors (IEEE 1451.2-Compatible)

26 26 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Comparison of Galvanomagnetic and Coil methods field change rate – up to 1 T/sec; duration of flat pulse – 0.2  0.5 sec; sampling frequency – 1 kHz (  t = 1 msec); measurement duration – 5 sec. The parameters:

27 27 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Comparison of Galvanomagnetic and Coil methods

28 28 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua GI Software Selfdiagnostic Two channels HF measurement

29 29 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua GI main parameters: precision Selfdiagnostic High precision mode of magnetic field measurement

30 30 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Transmission driver for GI on TORE SUPRA

31 31 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Transmission driver for GI on JET MSL Galvanomagnetic Instrumentation

32 32 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Bolshakova І., Holyaka R. Magnetic field measuring transducer. Patent of Ukraine #72825 of 15.04.2005 New High Frequency Magnetic Transducer I - traditional HT II - highly sensitive HT III - the loop for the electromagnetic compensation

33 33 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Measuring magnetic field frequency bandup to 1 MHz Measurement accuracy (measuring method): in the frequency range 0  1 kHz (direct measurement with Hall transducer of FM-sensor) 0.1 % in the frequency range 1 kHz  1 MHz (measuring with Hall transducer, interference compensation by MF-sensor electromagnetic loop) 1 % The bench for high frequency magnetic field formation

34 34 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The dumping oscillation current of test coil & signal of galvanomagnetic sensor V HT (I = 20 mA) Current of test coil V HT (I = -20 mA) V HT (I = 0 mA)

35 35 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua NEXT STEPS Collaboration with European tokamaks: JET2006-2007 TORE SUPRA2006-2008 TEXTOR2006-2007 CASTOR2006

36 36 JET Tore Supra 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Qualification and validation of Hall Probe System for potential applications in ITER TEXTOR CASTOR High frequency MHD analysis (in-vessel): special techniques for electromagnetic noise elimination and high-temperature robust Hall sensor Perturbation field measurement (fast-reciprocating probe): integrated transducer based on Hall sensor and pick-up coil Residual magnetic field measurements (ex-vessel): special techniques for self-diagnostics and off-set drift reduction Short magnetic pulse measurements (in-vessel)

37 37 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua The problem of quasi-stationary magnetic field measurements in fusion devices can be efficiently solved by using Hall-type galvanomagnetic transducers. Contrary to the traditional measuring coils, the HT can measure the steady- state and the alternating magnetic fields with sufficiently high accuracy. Proposed principles of instrumentation construction for quasi-stationary magnetic field measurements, based on the developed radiation hard HTs and original signal processing electronics, meet the requirements of extreme operation conditions on fusion reactors of new generation. The galvanomagnetic transducers and the based-on instrumentation being presented in the work, were used during the experiments with quasi steady- state magnetic fields on the tokamaks TORE SUPRA (France) and JET (UK). Conclusion

38 38 10 th Meeting of the ITPA Topical Group on Diagnostics, Moscow, Russia Magnetic Sensor Laboratory, Lviv Polytechnic National University, Ukraine. http://www.MSL.Lviv.uahttp://www.MSL.Lviv.ua Acknowledgments The work was supported by: STCU (Ukraine) EFDA-JET (UK) Association EURATOM-CEA (France) Association EURATOM-ENEA/CREATE (Italy). …. thank you


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