Open Source Electromagnetic Trackers - Revision history

Traneus: /* References */ added Plotkin etal characterization procedure

2018-01-14T22:13:58Z

References: added Plotkin etal characterization procedure

Traneus: /* Current Progress */

2017-04-02T20:28:55Z

Current Progress

Traneus at 17:54, 12 January 2017

2017-01-12T17:54:33Z

Traneus at 13:01, 25 December 2015

2015-12-25T13:01:54Z

Traneus at 16:56, 4 November 2015

2015-11-04T16:56:55Z

Traneus: /* Current Progress */

2015-08-17T00:38:01Z

Current Progress

Traneus: /* References */

2015-08-17T00:32:38Z

References

Traneus: /* References */

2014-12-09T22:44:57Z

References

Traneus: /* References */

2014-12-09T22:32:45Z

References

Traneus: /* References */

2014-12-09T22:17:57Z

References

@@ Line 28: / Line 28: @@
 * https://github.com/traneus/emtrackers
-* http://www.hackster.io/plume/plume http://rose.eu.org/2014/tag/plume another 6DOF EM tracker project.
+* http://www.hackster.io/plume/plume http://rose.eu.org/2014/tag/plume a dead 6DOF EM tracker project.
 * Project started at [[2011_Summer_project_Week_Open_Source_Electromagnetic_Trackers_using_OpenIGTLink| 2011 Summer Project Week]]
@@ Line 49: / Line 49: @@
 *James M. Chappell, Samuel P. Drake, Cameron L. Seidel, Lachlan J. Gunn, Azhar Iqbal, Andrew Allison, Derek Abbott, "Geometric Algebra for Electrical and Electronic Engineers", Proceedings of the IEEE, Vol. 102, No. 9, September 2014, pages 1340 to 1363. Clifford algebra formulation of electromagnetics using vectors, bivectors, trivector.
 ==Citations==

← Older revision		Revision as of 20:28, 2 April 2017
Line 20:		Line 20:

	[[6DOF_Electromagnetic_Tracker_Construction_HOWTO\|6DOF Electromagnetic Tracker Construction HOWTO]]		[[6DOF_Electromagnetic_Tracker_Construction_HOWTO\|6DOF Electromagnetic Tracker Construction HOWTO]]
		+
		+	[[5DOF_Electromagnetic_Tracker_Notes\|5DOF Electromagnetic Tracker Notes]]

	Pete's current efforts are towards developing low-cost coil-characterization methods which make sense electromagnetically, aiming for a published paper. Pete has yet to encounter a paper which covers this topic.		Pete's current efforts are towards developing low-cost coil-characterization methods which make sense electromagnetically, aiming for a published paper. Pete has yet to encounter a paper which covers this topic.

@@ Line 30: / Line 30: @@
 * Project started at [[2011_Summer_project_Week_Open_Source_Electromagnetic_Trackers_using_OpenIGTLink| 2011 Summer Project Week]]
-*Frederick H. Raab, Ernest B. Blood, Terry O. Steiner, Herbert R. Jones, "Magnetic Position and Orientation Tracking System", IEEE Transactions on Aerospace and Electronic systems, Vol. AES-15, No. 4, September 1979, pages 709-718. Iterative solution for 6DOF tracker.
+*Frederick H. Raab, Ernest B. Blood, Terry O. Steiner, Herbert R. Jones, "Magnetic Position and Orientation Tracking System", IEEE Transactions on Aerospace and Electronic systems, Vol. AES-15, No. 4, September 1979, pages 709-718. Iterative solution for 6DOF tracker. Includes sensitivity matrix of magnetic couplings partial derivatives with respect to position and orientation changes.
 *Frederick H. Raab, "Quasi-Static Magnetic-Field Technique for Determining Position and Orientation", IEEE Transactions on Geoscience and Remote Sensing, Vol. GE-19, No. 4, October 1981, pages 235-243. Direct solution for 6DOF tracker.

← Older revision		Revision as of 13:01, 25 December 2015
Line 35:		Line 35:

	*Tobias Schroeder, "An accurate magnetic field solution for medical electromagnetic tracking coils at close range", Journal of Applied Physics 117, 224504 (2015). Current-sheet model for cubical coils.		*Tobias Schroeder, "An accurate magnetic field solution for medical electromagnetic tracking coils at close range", Journal of Applied Physics 117, 224504 (2015). Current-sheet model for cubical coils.
−
−	* Peter Traneus Anderson, "A Source of Accurately Calculable Quasi-Static Magnetic Fields", dissertation presented to the Faculty of the Graduate College of the University of Vermont, October 2001, available in the UVM library and [[http://home.comcast.net/~traneus/thesis.pdf here]]. The four missing figures are available [[http://home.comcast.net/~traneus/thesifig.pdf here]]. A reference that should have been included: U.S. patent 1,172,017 for Reginald Fessenden's direct-conversion receiver using a commutator.

	*C.A. Nafis, V. Jensen, L. Beauregard, P.T. Anderson, "Method for estimating dynamic EM tracking accuracy of Surgical Navigation tools", SPIE Medical Imaging Proceedings, 2006. Reports low-cost accuracy-measuring techniques and results for various trackers.		*C.A. Nafis, V. Jensen, L. Beauregard, P.T. Anderson, "Method for estimating dynamic EM tracking accuracy of Surgical Navigation tools", SPIE Medical Imaging Proceedings, 2006. Reports low-cost accuracy-measuring techniques and results for various trackers.

@@ Line 25: / Line 25: @@
 ==References==
 * https://github.com/traneus/emtrackers
 * http://www.hackster.io/plume/plume http://rose.eu.org/2014/tag/plume another 6DOF EM tracker project.

← Older revision		Revision as of 00:38, 17 August 2015
Line 20:		Line 20:

	[[6DOF_Electromagnetic_Tracker_Construction_HOWTO\|6DOF Electromagnetic Tracker Construction HOWTO]]		[[6DOF_Electromagnetic_Tracker_Construction_HOWTO\|6DOF Electromagnetic Tracker Construction HOWTO]]
		+
		+	Pete's current efforts are towards developing low-cost coil-characterization methods which make sense electromagnetically, aiming for a published paper. Pete has yet to encounter a paper which covers this topic.

	==References==		==References==

← Older revision		Revision as of 00:32, 17 August 2015
Line 33:		Line 33:

	*Frederick H. Raab, "Quasi-Static Magnetic-Field Technique for Determining Position and Orientation", IEEE Transactions on Geoscience and Remote Sensing, Vol. GE-19, No. 4, October 1981, pages 235-243. Direct solution for 6DOF tracker.		*Frederick H. Raab, "Quasi-Static Magnetic-Field Technique for Determining Position and Orientation", IEEE Transactions on Geoscience and Remote Sensing, Vol. GE-19, No. 4, October 1981, pages 235-243. Direct solution for 6DOF tracker.
		+
		+	*Tobias Schroeder, "An accurate magnetic field solution for medical electromagnetic tracking coils at close range", Journal of Applied Physics 117, 224504 (2015). Current-sheet model for cubical coils.

	* Peter Traneus Anderson, "A Source of Accurately Calculable Quasi-Static Magnetic Fields", dissertation presented to the Faculty of the Graduate College of the University of Vermont, October 2001, available in the UVM library and [[http://home.comcast.net/~traneus/thesis.pdf here]]. The four missing figures are available [[http://home.comcast.net/~traneus/thesifig.pdf here]]. A reference that should have been included: U.S. patent 1,172,017 for Reginald Fessenden's direct-conversion receiver using a commutator.		* Peter Traneus Anderson, "A Source of Accurately Calculable Quasi-Static Magnetic Fields", dissertation presented to the Faculty of the Graduate College of the University of Vermont, October 2001, available in the UVM library and [[http://home.comcast.net/~traneus/thesis.pdf here]]. The four missing figures are available [[http://home.comcast.net/~traneus/thesifig.pdf here]]. A reference that should have been included: U.S. patent 1,172,017 for Reginald Fessenden's direct-conversion receiver using a commutator.

@@ Line 26: / Line 26: @@
 * http://home.comcast.net/~traneus/dry_emtrackertricoil.htm Pete's 6DOF EM tracker page.
-* http://www.hackster.io/plume/plume another 6DOF EM tracker project.
+* http://www.hackster.io/plume/plume http://rose.eu.org/2014/tag/plume another 6DOF EM tracker project.
 * Project started at [[2011_Summer_project_Week_Open_Source_Electromagnetic_Trackers_using_OpenIGTLink| 2011 Summer Project Week]]
@@ Line 34: / Line 34: @@
 *Frederick H. Raab, "Quasi-Static Magnetic-Field Technique for Determining Position and Orientation", IEEE Transactions on Geoscience and Remote Sensing, Vol. GE-19, No. 4, October 1981, pages 235-243. Direct solution for 6DOF tracker.
-*Peter Traneus Anderson, "A Source of Accurately Calculable Quasi-Static Magnetic Fields", Ph.D. dissertation, University of Vermont, 2001, available from University of Vermont library, Burlington, Vermont, USA, also available from http://home.comcast.net/~traneus/thesis.pdf with four missing figures from http://home.comcast.net/~traneus/thesifig.pdf and still missing reference to U.S. patent 1,172,017. Demonstrates example of electronics design and of field-modeling algorithm. Coil design is optimized for academic publishability and not for practical usefulness.
+* Peter Traneus Anderson, "A Source of Accurately Calculable Quasi-Static Magnetic Fields", dissertation presented to the Faculty of the Graduate College of the University of Vermont, October 2001, available in the UVM library and [[http://home.comcast.net/~traneus/thesis.pdf here]]. The four missing figures are available [[http://home.comcast.net/~traneus/thesifig.pdf here]]. A reference that should have been included: U.S. patent 1,172,017 for Reginald Fessenden's direct-conversion receiver using a commutator.
 *C.A. Nafis, V. Jensen, L. Beauregard, P.T. Anderson, "Method for estimating dynamic EM tracking accuracy of Surgical Navigation tools", SPIE Medical Imaging Proceedings, 2006. Reports low-cost accuracy-measuring techniques and results for various trackers.

@@ Line 42: / Line 42: @@
 *Albert H. Nuttall, "Some Windows with Very Good Sidelobe Behavior", IEEE Transactions on Acoustics, Speech, and Signal Processing 29 (1) 84-91, doi:10.1109/TASSP.1981.1163506, "U.S. Government work not subject to U.S. copyright", in particular Figure 10 window for -L/2 < t < L/2: w(t) = (1/L) (10/32 + 15/32 cos(2pi t/L) + 6/32 cos(4pi t/L) + 1/32 cos(6pi t/L)) has first sidelobe at -61 dB and 42 dB/octave sidelobe rolloff.
-*Eugene Paperno, "Suppression of magnetic noise in the fundamental-mode orthogonal fluxgate", Elsevier, Sensors and Actuators A 116 (2004) 405-409. Picotesla noise in 20 mm long 1 mm diameter fluxgate magnetometer.
+*Eugene Paperno, "Suppression of magnetic noise in the fundamental-mode orthogonal fluxgate", Elsevier, Sensors and Actuators A 116 (2004) 405-409. Picotesla noise in 20 mm long 1 mm diameter fluxgate magnetometer. To get low noise, the drive flux swings between saturation in one direction and zero flux. The usual noisy fluxgate drive flux swings between saturation in one direction and saturation in the other direction, to ease measurement down to DC.
 *[[http://scitation.aip.org/content/aip/journal/jap/115/17/10.1063/1.4861675 | Nara etal, "Moore-Penrose generalized inverse of the gradient tensor in Euler's equation for locating a magnetic dipole"]][[http://dx.doi.org/10.1063/1.4861675 | J. Appl. Phys. 115, 17E504 (2014)]] on field-and-gradient single-coil 5DOF tracking closed-form algorithm.