Real time feedback control system for an electromagnetic launcher

Ryan W. Karhi; John J. Mankowski; David J. Hemmert; Shad L. Holt

doi:10.1109/MEGAGUSS.2006.4530676

Real time feedback control system for an electromagnetic launcher

Ryan W. Karhi, John J. Mankowski, David J. Hemmert, Shad L. Holt

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

The design and implementation of a real time feedback control system for a distributed energy, bench top, electromagnetic launcher is presented. The feedback control system provides optimum pulse shaping by real time control of solid state switches. Advantages of pulse shaping control include increased energy efficiency and control of armature exit velocity. LabVIEW 8.0 software¹ is used to program a National Instruments CompactRIO programmable automation controller (PAC). This provides real time processing by use of the reconfigurable I/O (RIO) FPGA technology. The program controls switch timing from analog feedback signals supplied by B-dot probes placed along the rail length. Through signal analysis, real time armature position is derived. The program uses this data to control pulse shape and width. A dedicated B-dot probe is placed at the beginning of each stage which is the desired triggering location. A flux ruler sensor along the bore length provides a secondary velocity calculation excluded from the control system. This sensor provides velocity measurements for every centimeter of bore travel. Collected data is used to characterize the system under test for different load conditions.

Original language	English
Title of host publication	2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS
Publisher	IEEE Computer Society
Pages	179-184
Number of pages	6
ISBN (Print)	9781424420612
DOIs	https://doi.org/10.1109/MEGAGUSS.2006.4530676
State	Published - Jan 1 2006
Event	2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS - Santa Fe, NM, United States Duration: Nov 5 2006 → Nov 10 2006

Publication series

Name	2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS

Conference

Conference	2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS
Country/Territory	United States
City	Santa Fe, NM
Period	11/5/06 → 11/10/06

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10.1109/MEGAGUSS.2006.4530676

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Karhi, R. W., Mankowski, J. J., Hemmert, D. J., & Holt, S. L. (2006). Real time feedback control system for an electromagnetic launcher. In 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS (pp. 179-184). Article 4530676 (2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS). IEEE Computer Society. https://doi.org/10.1109/MEGAGUSS.2006.4530676

Karhi, Ryan W. ; Mankowski, John J. ; Hemmert, David J. et al. / Real time feedback control system for an electromagnetic launcher. 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS. IEEE Computer Society, 2006. pp. 179-184 (2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS).

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title = "Real time feedback control system for an electromagnetic launcher",

abstract = "The design and implementation of a real time feedback control system for a distributed energy, bench top, electromagnetic launcher is presented. The feedback control system provides optimum pulse shaping by real time control of solid state switches. Advantages of pulse shaping control include increased energy efficiency and control of armature exit velocity. LabVIEW 8.0 software1 is used to program a National Instruments CompactRIO programmable automation controller (PAC). This provides real time processing by use of the reconfigurable I/O (RIO) FPGA technology. The program controls switch timing from analog feedback signals supplied by B-dot probes placed along the rail length. Through signal analysis, real time armature position is derived. The program uses this data to control pulse shape and width. A dedicated B-dot probe is placed at the beginning of each stage which is the desired triggering location. A flux ruler sensor along the bore length provides a secondary velocity calculation excluded from the control system. This sensor provides velocity measurements for every centimeter of bore travel. Collected data is used to characterize the system under test for different load conditions.",

author = "Karhi, {Ryan W.} and Mankowski, {John J.} and Hemmert, {David J.} and Holt, {Shad L.}",

year = "2006",

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doi = "10.1109/MEGAGUSS.2006.4530676",

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series = "2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS",

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booktitle = "2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS",

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Karhi, RW, Mankowski, JJ, Hemmert, DJ & Holt, SL 2006, Real time feedback control system for an electromagnetic launcher. in 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS., 4530676, 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS, IEEE Computer Society, pp. 179-184, 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS, Santa Fe, NM, United States, 11/5/06. https://doi.org/10.1109/MEGAGUSS.2006.4530676

Real time feedback control system for an electromagnetic launcher. / Karhi, Ryan W.; Mankowski, John J.; Hemmert, David J. et al.
2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS. IEEE Computer Society, 2006. p. 179-184 4530676 (2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Real time feedback control system for an electromagnetic launcher

AU - Karhi, Ryan W.

AU - Mankowski, John J.

AU - Hemmert, David J.

AU - Holt, Shad L.

PY - 2006/1/1

Y1 - 2006/1/1

N2 - The design and implementation of a real time feedback control system for a distributed energy, bench top, electromagnetic launcher is presented. The feedback control system provides optimum pulse shaping by real time control of solid state switches. Advantages of pulse shaping control include increased energy efficiency and control of armature exit velocity. LabVIEW 8.0 software1 is used to program a National Instruments CompactRIO programmable automation controller (PAC). This provides real time processing by use of the reconfigurable I/O (RIO) FPGA technology. The program controls switch timing from analog feedback signals supplied by B-dot probes placed along the rail length. Through signal analysis, real time armature position is derived. The program uses this data to control pulse shape and width. A dedicated B-dot probe is placed at the beginning of each stage which is the desired triggering location. A flux ruler sensor along the bore length provides a secondary velocity calculation excluded from the control system. This sensor provides velocity measurements for every centimeter of bore travel. Collected data is used to characterize the system under test for different load conditions.

AB - The design and implementation of a real time feedback control system for a distributed energy, bench top, electromagnetic launcher is presented. The feedback control system provides optimum pulse shaping by real time control of solid state switches. Advantages of pulse shaping control include increased energy efficiency and control of armature exit velocity. LabVIEW 8.0 software1 is used to program a National Instruments CompactRIO programmable automation controller (PAC). This provides real time processing by use of the reconfigurable I/O (RIO) FPGA technology. The program controls switch timing from analog feedback signals supplied by B-dot probes placed along the rail length. Through signal analysis, real time armature position is derived. The program uses this data to control pulse shape and width. A dedicated B-dot probe is placed at the beginning of each stage which is the desired triggering location. A flux ruler sensor along the bore length provides a secondary velocity calculation excluded from the control system. This sensor provides velocity measurements for every centimeter of bore travel. Collected data is used to characterize the system under test for different load conditions.

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U2 - 10.1109/MEGAGUSS.2006.4530676

DO - 10.1109/MEGAGUSS.2006.4530676

M3 - Conference contribution

SN - 9781424420612

T3 - 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS

SP - 179

EP - 184

BT - 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS

PB - IEEE Computer Society

T2 - 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS

Y2 - 5 November 2006 through 10 November 2006

ER -

Karhi RW, Mankowski JJ, Hemmert DJ, Holt SL. Real time feedback control system for an electromagnetic launcher. In 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS. IEEE Computer Society. 2006. p. 179-184. 4530676. (2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS). doi: 10.1109/MEGAGUSS.2006.4530676

Real time feedback control system for an electromagnetic launcher

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