To suppress a variation in each resistor 2 in a stress sensor in which a post 6 is stuck or unified on the surface of an insulation substrate 3; and the direction and the magnitude of the stress can be obtained from a resistance value change of a resistance element 8, due to a stimulation to a plurality of the resistance elements 8 resulting from the stress applied to the post 6.
The resistance element 8 consists of the resistor 2 formed by a screen printing between electrodes for the resistance elements used as a counterpart arranged on the surface of the insulation substrate 3. The electrode for the resistance element is connected by a conductor 9 into a substrate terminal 5 allotted to the end of the insulation substrate 3. The electrode for the resistance element, the conductor 9 and a printing accuracy adjusting material 7 have a predetermined height from the surface of the insulation substrate 3. For all of the plurality of resistance elements 8, the conductor, the printing accuracy adjusting material 7 and the electrode for the resistance element are arranged around over three directions of the single resistor 2, and the resister 2 is a resistor made of a carbon resin system.
COPYRIGHT: (C)2005,JPO&NCIPI
Atsushi Inukai
Fumiaki Karasawa
Hiroshi Yajima
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