Patent ID: 6761073
Filing Date: 2004-07-13
Classification: G01B,G01L

Abstract:
A strain detector comprising:an insulating substrate including a stainless steel board, a protective coat made of alumina formed over said stainless steel board, and an insulating layer made of glass formed over said protective coat; a power electrode, output electrodes and a ground electrode disposed over said insulating substrate; at least one strain-resistance element coupled to said power electrode, said output electrodes and said ground electrode over said insulating substrate; a temperature-characteristic-compensation element disposed over said insulating substrate; a first protective layer formed over said at least one strain-resistance element; a second protective layer formed over said first protective layer such that said first protective layer is between said second protective layer and said at least one strain-resistance element; and a frame ground electrode provided over said stainless steel board and electrically coupled to said stainless steel board.