Patent ID: 7696855

Claim:
A strain gauge for measuring large strains, comprising metallic foil pattern sections including a narrow gauge element pattern section formed of a resistance material and capable of changing its resistance in response to a detected strain, at least a pair of wide gauge tab pattern sections connected with gauge leads, and at least a pair of connecting pattern sections capable of electrically connecting the respective ends of said gauge tab pattern sections and said gauge element pattern section, said metallic foil pattern sections being attached onto a gauge base formed of a flexible insulation material, said gauge base having said metallic foil pattern sections attached being covered on the surface side with a laminating film, said laminating film being extended by a predetermined length from an end of the gauge base on said gauge element pattern section side, to form a protruding portion, and when the strain gauge is attached to an object to be measured, the back side of said gauge base and the back side of said protruding portion being attachable to said object to be measured.