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Notes on the measurement of stress by resistance gauges in the presence of a magnetic field; Note sur les mesures de contraintes par jauges a fil resistant en presence de champ magnetique

Abstract

The technique of stress measurement by resistance gauges is well known. Although it is not yet perfect it possesses many advantages and shows great possibilities. In the presence of a magnetic field the measurement is perturbed by certain phenomena, and we have undertaken to calculate their order of magnitude with a view to establishing the error involved in the measurement. Our problem was to measure the stresses on the various parts of the magnet in the synchrotron Saturne. It is known that the induction passes from a value of about nil to 15000 gauss in 0.8 second, and returns to zero in the same time interval; this cycle recurs every 3.2 seconds. In order to isolate the effects the problem of measurements in a static field will be examined first, after which the results obtained will be extended to the case of dynamic fields. (author) [French] La technique de mesure de contraintes par jauges a fil resistant est bien connue. Elle presente de nombreux avantages, beaucoup de possibilites, bien que n'etant pas encore parfaite. En presence de champ magnetique, la mesure est perturbee par un certain nombre de phenomenes dont nous avons ete conduits a chiffrer l'ordre de grandeur afin  More>>
Authors:
Armand, G; Lapujoulade, J [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France).Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1961
Product Type:
Technical Report
Report Number:
CEA-R-1710
Resource Relation:
Other Information: 1 refs
Subject:
42 ENGINEERING; DEFORMATION; ELECTROMAGNETS; ERRORS; MAGNETIC FIELDS; MAGNETORESISTANCE; MAGNETOSTRICTION; MECHANICAL TESTS; SATURNE; STRAIN GAGES; STRESS ANALYSIS
OSTI ID:
20967959
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1710116744
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
3 pages
Announcement Date:
Dec 29, 2007

Citation Formats

Armand, G, and Lapujoulade, J. Notes on the measurement of stress by resistance gauges in the presence of a magnetic field; Note sur les mesures de contraintes par jauges a fil resistant en presence de champ magnetique. France: N. p., 1961. Web.
Armand, G, & Lapujoulade, J. Notes on the measurement of stress by resistance gauges in the presence of a magnetic field; Note sur les mesures de contraintes par jauges a fil resistant en presence de champ magnetique. France.
Armand, G, and Lapujoulade, J. 1961. "Notes on the measurement of stress by resistance gauges in the presence of a magnetic field; Note sur les mesures de contraintes par jauges a fil resistant en presence de champ magnetique." France.
@misc{etde_20967959,
title = {Notes on the measurement of stress by resistance gauges in the presence of a magnetic field; Note sur les mesures de contraintes par jauges a fil resistant en presence de champ magnetique}
author = {Armand, G, and Lapujoulade, J}
abstractNote = {The technique of stress measurement by resistance gauges is well known. Although it is not yet perfect it possesses many advantages and shows great possibilities. In the presence of a magnetic field the measurement is perturbed by certain phenomena, and we have undertaken to calculate their order of magnitude with a view to establishing the error involved in the measurement. Our problem was to measure the stresses on the various parts of the magnet in the synchrotron Saturne. It is known that the induction passes from a value of about nil to 15000 gauss in 0.8 second, and returns to zero in the same time interval; this cycle recurs every 3.2 seconds. In order to isolate the effects the problem of measurements in a static field will be examined first, after which the results obtained will be extended to the case of dynamic fields. (author) [French] La technique de mesure de contraintes par jauges a fil resistant est bien connue. Elle presente de nombreux avantages, beaucoup de possibilites, bien que n'etant pas encore parfaite. En presence de champ magnetique, la mesure est perturbee par un certain nombre de phenomenes dont nous avons ete conduits a chiffrer l'ordre de grandeur afin de connaitre l'erreur commise lors de la mesure. Precisons qu'il s'agissait pour nous de mesurer les contraintes sur les differents organes de l'aimant du synchrotron Saturne. L'on sait que la valeur de l'induction au droit de l'entrefer passe d'une valeur sensiblement nulle a 15000 gauss en 0,8 secondes, pour revenir ensuite a zero pendant un temps egal au precedent; le cycle ci-dessus se reproduit toutes les 3,2 secondes. Afin de separer les effets, nous examinerons d'abord le probleme des mesures en champ statique puis nous etendrons les resultats obtenus au cas des champs dynamiques. (auteur)}
place = {France}
year = {1961}
month = {Jul}
}