Hostname: page-component-7479d7b7d-jwnkl Total loading time: 0 Render date: 2024-07-12T05:52:08.816Z Has data issue: false hasContentIssue false
  • English
  • Français

Dynamic behaviour of a monolithic suspension device for the French watt balance experiment

Published online by Cambridge University Press:  25 July 2008

P. Pinot ,
S. Mace ,
G. Geneves ,
P. Gournay ,
D. Haddad ,
M. Lecollinet ,
F. Villar  and
M. E. Himbert
P. Pinot*
Affiliation:
LNE-INM/Cnam, 61 rue du Landy, 93210 La Plaine Saint-Denis, France
S. Mace
Affiliation:
LNE-INM/Cnam, 61 rue du Landy, 93210 La Plaine Saint-Denis, France
G. Geneves
Affiliation:
LNE, 29 avenue Roger Hennequin, 78197 Trappes, France
P. Gournay
Affiliation:
LNE, 29 avenue Roger Hennequin, 78197 Trappes, France
D. Haddad
Affiliation:
LNE, 29 avenue Roger Hennequin, 78197 Trappes, France
M. Lecollinet
Affiliation:
LNE-INM/Cnam, 61 rue du Landy, 93210 La Plaine Saint-Denis, France
F. Villar
Affiliation:
LNE, 29 avenue Roger Hennequin, 78197 Trappes, France
M. E. Himbert
Affiliation:
LNE-INM/Cnam, 61 rue du Landy, 93210 La Plaine Saint-Denis, France
*
patrick.pinot@cnam.fr
Get access

Abstract

In the French watt balance experiment, in order to have a single point of application of a weight and an electromagnetic force balancing this weight, a system of double gimbals with flexure pivots was made out of copper-beryllium alloy. This allows the articulation of the suspension devices of the mass (generating the weight) and coil (on which the electromagnetic force acts) around four coplanar axes which intersect at one point (equivalent to a virtual centre of rotation). The study of the free dynamic behaviour under vacuum of this device dealt with resonance, damping due to internal friction of the material and coupling between the two systems of gimbals. The results obtained show that this novel device presents suitable characteristics for concentrating two different forces at a single point and aligning them around a common vertical axis. It can be used not only for watt balance experiments but also for any other mechanical applications where alignment and concentration of two forces are necessary.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 44 , Issue 2 , November 2008 , pp. 193 - 204
Copyright
© EDP Sciences, 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

B.P. Kibble, Atomic Masses and Fundamental Constants, edited by J.H. Sanders, A.H. Wapstra (Plenum, New-York, 1976), Vol. 5
Kibble, B.P., Robinson, I.A., Bellis, J.H., Metrologia 27, 173 (1990) CrossRef
Robinson, I.A., Kibble, B.P., IEEE Trans. Instr. Meas. 46, 596 (1997) CrossRef
Steiner, R.L., Newell, D., Williams, E., J. Res. Natl. Inst. Stand. Technol. 110, 1 (2005) CrossRef
Beer, W., Jeanneret, B., Jeckelmann, B., Richard, P., Courteville, A., Salvadé, Y., Dändliker, R., IEEE Trans. Instr. Meas. 48, 192 (1999) CrossRef
Eichenberger, A., Jeckelmann, B., Richard, P., Metrologia 40, 356 (2003) CrossRef
A. Picard, M. Stock, H. Fang, in Proceedings of the Conference on Precision Electromagnetic Measurements, CPEM Digest, 128 (2006)
M. Lecollinet, C. Bordé, M. Chambon, A. Clairon, T. Coorevits, N. Feltin, G. Genevès, A. Gosset, P. Juncar, P. Pinot, F. Platel, in Proceedings of the 10 th International Congress of Metrology, St Louis, France, 2001 (available on CD ROM)
F. Alves, M. Besbes, A. Clairon, L. Chassagne, J. David, A. Gosset, P. Gournay, D. Holleville, P. Juncar, A. Landragin, M. Lecollinet, F. Pereira Dos Santos, P. Pinot, S. Topçu, F. Villar, G. Genevès, in Proceedings of the 11 th International Congress of Metrology, Toulon, France, 2003 (available on CD ROM)
Genevès, G., Gournay, P., Gosset, A., Lecollinet, M., Villar, F., Pinot, P., Juncar, P., Clairon, A., Landragin, A., Holleville, D., Pereira Dos, F. Santos, J. David, M. Besbes, F. Alves, L. Chassagne, S. Topçu, IEEE Trans. Instr. Meas. – Special issue on CPEM 2004 54, 805 (2005)
Genevès, G., Gournay, P., Villar, F., Pinot, P., Juncar, P., Lecollinet, M., Chassagne, L., Clairon, A., Landragin, A., Holleville, D., Dos Santos, F.P., David, J., Besbes, M., Alves, F., Topçu, S., Haddad, D., Gosset, A., Silvestri, Z., Meury, P.-A., Madec, T., Macé, S., Revue Française de Métrologie 9, 3 (2007)
Pinot, P., Genevès, G., Haddad, D., David, J., Juncar, P., Lecollinet, M., Macé, S., Villar, F., Rev. Sci. Instr. 78, 095108 (2007) CrossRef
P. Pinot, S. Macé, G. Genevès, D. Haddad, F. Villar, in Proceedings of the 13 ${th}$ International Congress of Metrology, Lille, France, 2007 (available on CD ROM)
Picard, A., Metrologia 41, 319 (2004) CrossRef
H.A. Bowman, L.B. Macurdy, J. Res. NBS 64 C, 277 (1960)
H.A. Bowman, H.E. Almer, J. Res. NBS 67 C, 227 (1963)
C. Zener, Elasticity and Anelasticity of Metals (University of Chicago Press, Chicago, 1948)
A.S. Nowick, B.S. Berry, Anelastic Relaxation in Cristalline Solids (Academic edn., New-York, 1972)
A. Al Majid, Ph.D. thesis, Institut National des Sciences Appliquées de Lyon, 2002 (unpublished)
Lalanne, M., Shock Vibr. J. 7, 29 (2000) CrossRef
Soula, M., Vinh, T., Chevalier, Y., Beda, T., Esteoule, C., J. Sound Vibr. 205, 167 (1997) CrossRef
Quinn, T.J., Speake, C.C., Brown, L.M., Phil. Mag. A 65, 261 (1992) CrossRef
Saulson, P.R., Phys. Rev. D 42, 2437 (1990) CrossRef
Blair, D.G., Ju, L., Notcutt, M., Rev. Sci. Instrum. 64, 1899 (1993) CrossRef
Huang, Y., Saulson, P.R., Rev. Sci. Instrum. 65, 2102 (1994) CrossRef
Saulson, P.R., Rev. Sci. Instrum. 65, 182 (1994) CrossRef
Yagmur, L., Gulmez, T., Hacizade, F., Kacmaz, S., Rev. Sci. Instrum. 76, 093903 (2005) CrossRef
Yuki, K., Barton, M.A., Kanda, N., Kuroda, K., Phys. Lett. A 223, 149 (1996) CrossRef
Yagmur, L., Fank, S., Aydemir, B., Sens. Actuators A 136, 261 (2007) CrossRef
Quinn, T.J., Speake, C.C., Davis, R.S., Tew, W., Phys. Lett. A 197, 197 (1995) CrossRef
Salisbury, S.P., Ben Mrad, R., Mechatronics 16, 399 (2006) CrossRef
F.S. Eastman, Bulletin N° 86, Engineering Experiment Station Series, University of Washington, 1 (1935)
Rousseaux, G., Coullet, P., Gilli, J.-M., Proc. R. Soc. A 462, 531 (2006) CrossRef