Strain Gage Basics

Advantages

  1. extremely versatile - gage lengths range from thousandths of an inch to several inches
  2. usable on curved surface, in holes, etc.
  3. accuracy - measure to 1 micro-strain
  4. static and dynamic applications

 

Disadvantages

  1. cannot be moved from specimen to specimen
  2. installation requires care (art)
  3. special instrumentation required to obtain data

 

Gage Operation

 

Wheatstone Bridge Circuit (Quarter Bridge)

Additional Information