3. Mechanical design of sensors
3.1 Sensor calculation
The calculation of a transducer, or more precisely of its test body, generally comes down to simple cases of strength of materials (tension, bending, torsion of beams, plates, diaphragms). Table
5
gives formulas designed to simplify the calculation of test bodies. Having chosen the location of the gauges, we can calculate the deformation ε (with its sign) for each of them. The corresponding resistance variation (with sign) is :
The Ultimate Scientific and Technical Reference
This article is included in
Mechanical and dimensional measurements
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Mechanical design of sensors
Choice of sensor gauges
Bibliography
Theses
- - http://www.sudoc.abes.fr
- PY (R.) - Comportement mécanique et électrique de films minces à haute température : application aux jauges d'extensométrie. - Paris 11, Orsay (1998).
Standardization
Extensometry does not lend itself to the establishment of standards as such. However, the documentation booklet below recalls, among other things, the concepts of elasticity which form the basis of extensometry.
- Résistance des matériaux et essais mécaniques de matériaux. Vocabulaire. - NF X 10-011 - 3-58
Manufacturers. Suppliers
Abelex
AMC.
ATEX (Applications of Extensometry Techniques).
Baléa SARL.
Bell and Howell France SA. - absorbed by Kodak : http://wwwfr.kodak.com
Beta. : http://www.betalasermike.com
...French and foreign organizations
The applications of extensometry are so varied that the technique is occasionally discussed by numerous technical associations. However, a number of industrial countries have set up associations or groups specializing in experimental stress analysis, of which extensometry is a major branch.
France
Groupement pour l'Avancement des Méthodes d'Analyse des Contraintes (GAMAC)....
The Ultimate Scientific and Technical Reference
