TY  - JOUR
A1  - Schopp, Christoph
A1  - Rohrbach, Felix
A1  - Langer, Luc
A1  - Heuermann, Holger
T1  - Detection of welding wire length by active S11 measurement
JF  - IEEE Transactions on Plasma Science
N2  - A novel method to determine the extruded length of a metallic wire for a directed energy deposition (DED) process using a microwave (MW) plasma jet with a straight-through wire feed is presented. The method is based on the relative comparison of the measured frequency response obtained by the large-signal scattering parameter (Hot-S) technique. In the practical working range, repeatability of less than 6% for a nonactive plasma and 9% for the active plasma state is found. Measurements are conducted with a focus on a simple solution to decrease the processing time and reduce the integration time of the process into the existing hardware. It is shown that monitoring a single frequency for magnitude and phase changes is sufficient to achieve good accuracy. A combination of different measurement values to determine the length is possible. The applicability to different diameter of the same material is shown as well as a contact detection of the wire and metallic substrate.
KW  - Circuit simulation
KW  - Hot S-parameter
KW  - Modeling
KW  - Plasma
KW  - Plasma diagnostics
Y1  - 2024
U6  - http://dx.doi.org/10.1109/TPS.2024.3356659
SN  - 0093-3813 (Print)
SN  - 1939-9375 (Online)
IS  - Early Access
SP  - 1
EP  - 6
PB  - IEEE
ER  - 
TY  - JOUR
A1  - Rietsch, Stefan H. G.
A1  - Brunheim, Sascha
A1  - Orzada, Stephan
A1  - Voelker, Maximilian N.
A1  - Maderwald, Stefan
A1  - Bitz, Andreas
A1  - Gratz, Marcel
A1  - Ladd, Mark E.
A1  - Quick, Harald H.
T1  - Development and evaluation of a 16-channel receive-only RF coil to improve 7T ultra-high field body MRI with focus on the spine
JF  - Magnetic Resonance in Medicine
Y1  - 2019
U6  - http://dx.doi.org/10.1002/mrm.27731
SN  - 1522-2594
IS  - Early view
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Wolf, Martin
A1  - Foltz, Christian
A1  - Schlick, Christopher
A1  - Luczak, Holger
T1  - Development and evaluation of a groupware system to support chemical design processes / Wolf, Martin ; Foltz, Christian ; Schlick, Christopher ; Luczak, Holger
JF  - International Journal of Human-Computer Interaction . 14 (2002), H. 2
Y1  - 2002
SN  - 1044-7318
SP  - 181
EP  - 198
PB  - -
ER  - 
TY  - JOUR
A1  - Alt, Helmut
T1  - Dialoggesteuerte harmonische Analyse mit dem HP 41
JF  - Elektrizitätswirtschaft
Y1  - 1986
SN  - 0013-5496
VL  - Bd. 85
IS  - H. 4
SP  - 139
EP  - 142
ER  - 
TY  - JOUR
A1  - Alt, Helmut
T1  - Dialoggesteuerte harmonische Analyse mit dem HP 41
JF  - Elektrowärme international Edition B : Industrielle Elektrowärme : IEW = Industrial applications of electro-heat : EWI ; Zeitschr. für das gesamte Gebiet der Elektrowärme in Industrie, Gewerbe und Haushalt
Y1  - 1986
SN  - 0340-3521
VL  - Jg. 44
IS  - H. 6
SP  - 283
EP  - 287
ER  - 
TY  - JOUR
A1  - Alt, Helmut
T1  - Dialoggesteuerte Spannungs- und Belastungsberechnung im Netz eines Elektrizitätsversorgungsunternehmens
JF  - Elektrizitätswirtschaft
Y1  - 1986
SN  - 0013-5496
VL  - Bd. 85
IS  - H. 23
SP  - 906
EP  - 910
ER  - 
TY  - JOUR
A1  - Hagemann, Hans-Jürgen
A1  - Bachmann, P.K.
A1  - Lade, H.
A1  - Leers, D.
T1  - Diamond chemical vapor deposition: gas compositions and film properties / Bachmann, P.K.; Hagemann, H.-J.; Lade, H; Leers, D.; Picht, F.; Wiechert, D.U.; Wilson, H.
JF  - Diamond, SiC and nitride wide bandgap semiconductors : symposium held April 4 - 8, 1994, San Francisco, California, U.S.A. / ed.: Calvin H. Carter, Jr. ...
Y1  - 1994
SN  - 1-55899-239-1
N1  - Materials Research Society symposium proceedings ; 339
SP  - 267
EP  - 277
CY  - Pittsburgh, Penn.
ER  - 
TY  - JOUR
A1  - Hagemann, Hans-Jürgen
A1  - Cassidy, Wiliam D.
T1  - Diamond growth rates and quality: dependence on gas phase cpmposition / William D. Cassidy [...], Hans-Jurgen Hagemann
JF  - Diamond, SiC and nitride wide bandgap semiconductors : symposium held April 4 - 8, 1994, San Francisco, California, U.S.A. / ed.: Calvin H. Carter, Jr. ....
Y1  - 1994
SN  - 1-55899-239-1
N1  - Materials Research Society symposium proceedings ; 339
SP  - 285
EP  - 291
CY  - Pittsburgh, Penn. ,
ER  - 
TY  - JOUR
A1  - Zastrow, Udo
T1  - Die Airysche Spannungsfunktion für die unendliche anisotrope, orthotrope und isotrope Scheibe
JF  - ZAMM - Zeitschrift für Angewandte Mathematik und Mechanik. 60 (1980), H. 6
Y1  - 1980
SN  - 1521-4001
SP  - T159
EP  - T160
ER  - 
TY  - JOUR
A1  - Hüning, Felix
T1  - Die Anforderungen steigen : Entwicklungstrends bei MOSFETs für den Automobilbereich
JF  - Elektronik-Industrie. 39 (2008), H. 5
Y1  - 2008
SN  - 0174-5522
SP  - 74
EP  - 76
PB  - -
ER  -