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Abstract:

The first study of Langmuir probes applied to cutting arcs using a sweeping-probe system is presented. It is found that, under a relatively broad range of experimental conditions (changes in the probe material, in the probe radii, or in the sweeping frequency of the probes), no probe damage is registered, notwithstanding the large value of the power flux present with these arcs. In practice, probes with radii down to 63 μm and with sweeping rotation frequencies down to 8.7 s -1 (probe transit time of ≈140 μs through the arc) were used without noticeable alterations. In the measurements of the ion current collected by negatively biased probes, the following two unexpected features are found: the lack of a current plateau in the ion branch of the I-V probe characteristic and the independence of the signal amplitude on the probe radius. According to the experimental evidence, as well as several estimations, we have neglected electron emission of the probe surface as a relevant mechanism in modifying the ion branch of the characteristic. On the contrary, some arguments on which a collection model will be based are presented. © 2008 IEEE.

Registro:

Documento: Artículo
Título:On the use of sweeping Langmuir probes in cutting arc plasmas - Part I: Experimental results
Autor:Prevosto, L.; Kelly, H.; Mancinelli, B.
Filiación:National Technological University, Venado Tuerto 1347 Santa Fe, Argentina
Institute of Plasma Physics, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Cutting arcs; Langmuir probes; Plasma diagnostic; Electric currents; Electron emission; Langmuir probes; Plasma diagnostics; Cutting arcs; Sweeping-probe system; Plasma arc cutting
Año:2008
Volumen:36 PART 2
Número:1
Página de inicio:263
Página de fin:270
DOI: http://dx.doi.org/10.1109/TPS.2007.914176
Título revista:IEEE Transactions on Plasma Science
Título revista abreviado:IEEE Trans Plasma Sci
ISSN:00933813
CODEN:ITPSB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00933813_v36PART2_n1_p263_Prevosto

Referencias:

  • Freton, P., Gonzalez, J.J., Gleizes, A., Peyret, F.C., Caillibotte, G., Delzenne, M., Numerical and experimental study of a plasma cutting torch (2002) J. Phys. D, Appl. Phys, 35 (2), pp. 115-131
  • Freton, P., Gonzalez, J.J., Peyret, F.C., Gleizes, A., Complementary experimental and theoretical approaches to the determination of the plasma characteristics in a cutting plasma torch (2003) J. Phys. D, Appl. Phys, 36 (11), pp. 1269-1283
  • Girard, L., Teulet, P., Razafinimanana, M., Gleizes, A., Peyret, F.C., Baillot, E., Richard, F., Experimental study of an oxygen cutting plasma torch: I. Spectroscopic analysis of the plasma jet (2006) J. Phys. D, Appl. Phys, 39 (8), pp. 1543-1556. , Apr
  • Teulet, P., Girard, L., Razafinimanana, M., Gleizes, A., Bertrand, P., Peyret, F.C., Baillot, E., Richard, F., Experimental study of an oxygen cutting plasma torch: II. Arc-material interaction, energy transfer and anode attachment (2006) J. Phys. D, Appl. Phys, 39 (8), pp. 1557-1573. , Apr
  • Pardo, C., González-Aguilar, J., Rodríguez-Yunta, A., Calderón, M.A.G., Spectroscopic analysis of an air plasma cutting torch (1999) J. Phys. D, Appl. Phys, 32 (17), pp. 2181-2189
  • Allum, C.J., Power dissipation in the column of a TIG welding arc (1983) J. Phys. D, Appl. Phys, 16 (11), pp. 2149-2165. , Nov
  • George, D.W., Richards, P.H., Boundary conditions in wall-stabilized arc columns (1968) J. Phys. D, Appl. Phys, 1 (9), pp. 1171-1182. , ser. 2, Sep
  • MacLatchy, C.S., Smith, H.C.L., The electron current to a Langmuir probe in a flowing high-pressure plasma (1991) IEEE Trans. Plasma Sci, 19 (6), pp. 1254-1258. , Dec
  • Fanara, C., Richardson, I.M., A Langmuir multi-probe system for the characterization of atmospheric pressure arc plasmas (2001) J. Phys. D, Appl. Phys, 34 (18), pp. 2715-2725. , Sep
  • Raizer, Y.P., (1991) Gas Discharge Physics, , Berlin, Germany: Springer-Verlag
  • Benilov, M.S., Can the temperature of electrons in a high-pressure plasma be determined by means of an electrostatic probe? (2000) J. Phys. D, Appl. Phys, 33 (14), pp. 1683-1696. , Jul
  • Schmitz, H., Riemann, K.U., Consistent analysis of the boundary layer of a Saha plasma (2001) J. Phys. D, Appl. Phys, 34 (8), pp. 1193-1202. , Apr
  • Fanara, C., Sweeping electrostatic probes in atmospheric pressure arc plasmas - Part I: General observations and characteristic curves (2005) IEEE Trans. Plasma Sci, 33 (3), pp. 1072-1081. , Jun
  • Fanara, C., Sweeping electrostatic probes in atmospheric pressure arc plasmas - Part II: Temperature determination (2005) IEEE Trans. Plasma Sci, 33 (3), pp. 1082-1092. , Jun
  • Gick, A.E.F., Quigley, M.B.C., Richards, P.H., The use of electrostatic probes to measure the temperature profile of welding arcs (1973) J. Phys. D, Appl. Phys, 6 (16), pp. 1941-1949. , Oct
  • Benilov, M.S., Rogov, B.V., Ion saturation current to spherical electrostatic probes in collisional plasmas (1991) J. Appl. Phys, 70 (11), pp. 6726-6731
  • Fang, M.T.C., Zhang, J.L., Yan, J.D., On the use of Langmuir probes for the diagnosis of atmospheric thermal plasmas (2005) IEEE Trans. Plasma Sci, 33 (4), pp. 1431-1442. , Aug
  • Tsuji, H., Hirano, T., Ion-current distributions around an electrically conductive body in ionized gas flow (1972) AIAA J, 11 (1), pp. 100-102
  • Anderson, H.L., (1989) A Physicist's Desk Reference, , 2nd ed. New York: AIP

Citas:

---------- APA ----------
Prevosto, L., Kelly, H. & Mancinelli, B. (2008) . On the use of sweeping Langmuir probes in cutting arc plasmas - Part I: Experimental results. IEEE Transactions on Plasma Science, 36 PART 2(1), 263-270.
http://dx.doi.org/10.1109/TPS.2007.914176
---------- CHICAGO ----------
Prevosto, L., Kelly, H., Mancinelli, B. "On the use of sweeping Langmuir probes in cutting arc plasmas - Part I: Experimental results" . IEEE Transactions on Plasma Science 36 PART 2, no. 1 (2008) : 263-270.
http://dx.doi.org/10.1109/TPS.2007.914176
---------- MLA ----------
Prevosto, L., Kelly, H., Mancinelli, B. "On the use of sweeping Langmuir probes in cutting arc plasmas - Part I: Experimental results" . IEEE Transactions on Plasma Science, vol. 36 PART 2, no. 1, 2008, pp. 263-270.
http://dx.doi.org/10.1109/TPS.2007.914176
---------- VANCOUVER ----------
Prevosto, L., Kelly, H., Mancinelli, B. On the use of sweeping Langmuir probes in cutting arc plasmas - Part I: Experimental results. IEEE Trans Plasma Sci. 2008;36 PART 2(1):263-270.
http://dx.doi.org/10.1109/TPS.2007.914176