Elantech Devices Corporation

Etsuo Ooba

Hiroshi Yajima

Fumiaki Karasawa

Atsuomi Inukai

A stress sensor in which the direction and magnitude of a stress being applied to a post bonded to or integrated with an insulating board can be grasped from variation in the resistance of resistor elements being stimulated by application of the stress while suppressing variation in the shape of each resistor. The resistor element comprises a resistor formed, by screen print, between a pair of electrodes for the resistor element, i.e. circuit pattern electrodes, arranged on the surface of the insulating board. The electrode is connected, through a conductor, with a board terminal part arranged at one end of the insulating board. The electrode and the conductor or a print accuracy adjusting member have a constant height from the surface of the insulating board. Arrangement of the conductor, electrode and print accuracy adjusting member is entirely identical or similar for the resistor elements in the vicinity thereof.

Resistor element, stress sensor, and method for manufacturing them

A stress sensor in which the direction and magnitude of a stress being applied to a post () bonded to or integrated with the surface of an insulating board () can be grasped from variation in the resistance of a plurality of resistor elements () being stimulated by application of the stress while suppressing variation in the shape of each resistor (). The resistor element () comprises a resistor () formed, by screen print, between a pair of electrodes for the resistor element, i.e. circuit pattern electrodes (), arranged on the surface of the insulating board (). The electrode is connected, through a conductor (), with a board terminal part () arranged at one end of the insulating board (). The electrode () and the conductor () or a print accuracy adjusting member () have a constant height from the surface of the insulating board (). Arrangement of the conductor (), the electrode () and the print accuracy adjusting member () is entirely identical or similar for the plurality of resistor elements () in the vicinity thereof.

Resistor element, stress sensor and method for manufacturing them

A stress sensor enduring against long-term use is provided. Accordingly, a substrate (), which is used as both a sensor part () and a supporting part (), functions as a stress sensor, in which the sensor part () has means for deforming a part thereof in response to a given stress and strain gauges () having a function for varying electric properties in response to the deformation, and in which the deforming part has a stress dispersing means ().

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Nagano, Japan

Etsuo Ooba