Strain Gage: Selection
engineering fundamentals Strain Gage: Selection
Directory | Career | News | Standards | Industrial | SpecSearch®
Home Membership Magazines Forum Search Member Calculators

Materials

Design

Processes

Units

Formulas

Math
 

There are thousands of strain gages available from the various vendors. Selection among these choices can be overwhelming. This section is aimed at narrowing down the selection possibilities.

Principles of Selecting Strain Gages

Four principles should be considered in selecting strain gages. They are

  • Suitability for the operating and environmental conditions.
  • Accurate and reliable measurements.
  • Easy to install.
  • Minimum cost.

Strain Gage Parameters

Parameters for choosing strain gages are summarized as follows.

  • Gage Length
  - accuracy requirement - strain gradients
  - maximum strain (elongation) - installation (space and easiness)
  - heat dissipation    
  • Gage Pattern
  - uniaxial, biaxial, or multi-axial - strain gradients
  - heat dissipation - installation (space and easiness)
  • Gage Resistance
  - signal noise ratio - heat dissipation
  - lead-wire desensitization    
  • Gage Materials
  - gage wire sensitivity - backing (carrier)
  - adhesive - self-temperature-compensation
  • Optional Features
  - installation (easiness, speed)    

Home  Membership  About Us  Privacy  Disclaimer  Contact  Advertise

Copyright © 2017 eFunda, Inc.