PERMANENT MEASUREMENT OF LONG-TERM FORCES

MESURE PERMANENTE DE FORCES A LONG TERME

THE OBJECT OF THIS RESEARCH IS THE DEVELOPMENT OF TECHNIQUES FOR ACCURATE LONG TERM MEASUREMENTS OF FORCE. TWO TECHNIQUES ARE BEING STUDIED: THE USE OF DOUBLE REFRACTION ACOUSTIC LOAD CELLS WHERE THERE IS A NEED FOR ALLOYS HAVING A CRYSTALLINE STRUCTURE WHICH WILL RESULT IN GOOD ISOTROPY AND ADEQUATE CREEP LIMITATIONS TOGETHER WITH A THEORETICAL STUDY OF DOUBLE REFRACTION; THE USE OF A HYDRAULIC SPRING BALANCE TECHNIQUE WHICH IS BEING DEVELOPED TO SUIT PARTICULAR APPLICATIONS (TENSILE FORCES).