Page 45 - Shellie Suzana Binti Saad
P. 45

STRAIN GAUGE






             A device used to measure the strain of an object.

              The strain gauge basically consists of a fine wire
                       attached on a mounting plate.

           The resistance and the resistivity of a wire are directly

           proportional to its length but inversely proportional to
                           its cross-sectional area.


           The gauges commonly made from silicon, polysilicon,
                   metal film, thick film and bonded foil.

           Most strain gauges are foil types, available in a wide

                 variety of shapes and sizes to suit various
                                 applications.




























                                    Page 32
   40   41   42   43   44   45   46   47   48   49   50