Abstract: There is provided a flexure body configured to be used in detection of load applied in first direction and a load applied in second direction orthogonal to the first direction. The flexure body including: a flexure member; and a circuit pattern. The flexure member has a flexure area configured to be strained under load from detection object and an area different from the flexure area. The circuit pattern includes two pieces of first-direction strain sensitive elements, two pieces of second-direction strain sensitive elements, and at least one of a first-direction fixed resistance element and a second-direction fixed resistance element. Two pieces of first-direction strain sensitive elements and two pieces of second-direction strain sensitive elements are provided in the flexure area, and the at least one of the first-direction fixed resistance element and the second-direction fixed resistance element is provided in the area different from the flexure area.

Abstract: There is provided a flexure body configured to be used in detection of load applied in first direction and a load applied in second direction orthogonal to the first direction. The flexure body including: a flexure member; and a circuit pattern. The flexure member has a flexure area configured to be strained under load from detection object and an area different from the flexure area. The circuit pattern includes two pieces of first-direction strain sensitive elements, two pieces of second-direction strain sensitive elements, and at least one of a first-direction fixed resistance element and a second-direction fixed resistance element. Two pieces of first-direction strain sensitive elements and two pieces of second-direction strain sensitive elements are provided in the flexure area, and the at least one of the first-direction fixed resistance element and the second-direction fixed resistance element is provided in the area different from the flexure area.

Abstract: The strain gage includes: a substrate formed from a resin material: a resistor provided on a surface of the substrate; and a fusion layer provided on an opposite surface, to the surface on which the resistor is provided. The fusion layer is a thermoplastic polyimide layer. There is provided the strain gage that has a thickness of as thin as possible and that makes a manufacture process of a load sensor simpler.

Abstract: There is provided a flexure body configured to be used in detection of load applied in first direction and a load applied in second direction orthogonal to the first direction. The flexure body including: a flexure member; and a circuit pattern. The flexure member has a flexure area configured to be strained under load from detection object and an area different from the flexure area. The circuit pattern includes two pieces of first-direction strain sensitive elements, two pieces of second-direction strain sensitive elements, and at least one of a first-direction fixed resistance element and a second-direction fixed resistance element. Two pieces of first-direction strain sensitive elements and two pieces of second-direction strain sensitive elements are provided in the flexure area, and the at least one of the first-direction fixed resistance element and the second-direction fixed resistance element is provided in the area different from the flexure area.

Abstract: Suppress a measurement error due to a change in an ambient temperature, in a strain gage for a multi-axis force sensor.

Abstract: A load detection apparatus includes a load input portion having a input surface, and an output surface; a flexure element including on annular portion including a contacting portion configured to make contact with at least a part of the output surface, and a support portion; a set of sensors disposed on a reverse surface opposite to a surface provided with the contacting portion in the annular portion, each of the set of sensors being configured to detect distortion corresponding to an input load; a set of calculation portions configured to calculate a set of magnitudes of the load by use of respective detection results obtained by the set of sensors; and an abnormality determination portion configured to determine whether the set of sensors and the set of calculation portions have no abnormality, by comparing the set of magnitudes of the load with each other.

Abstract: There is provided a strain gauge having both reduced size and symmetry. The strain gauge includes at least four grid resistor connected to each other in series, and at least three trim resistors each connected to a series circuit in parallel, the series circuit being constituted by two grid resistors adjacent to each other (R1,R2; R2,R3; R3,R4) of the at least four grid resistors. The at least four grid resistors have resistance values different from one another.

Abstract: The strain gage includes: a substrate formed from a resin material: a resistor provided on a surface of the substrate; and a fusion layer provided on an opposite surface, to the surface on which the resistor is provided. The fusion layer is a thermoplastic polyimide layer. There is provided the strain gage that has a thickness of as thin as possible and that makes a manufacture process of a load sensor simpler.

Abstract: There is provided a strain gauge having both reduced size and symmetry. The strain gauge includes at least four grid resistor connected to each other in series, and at least three trim resistors each connected to a series circuit in parallel, the series circuit being constituted by two grid resistors adjacent to each other (R1,R2; R2,R3; R3,R4) of the at least four grid resistors. The at least four grid resistors have resistance values different from one another.

Abstract: There is provided a flexible printed circuit board. The flexible printed circuit board includes: a flexible insulation layer having a first surface and a second surface; a first land which is conductive and which is provided on the first surface of the flexible insulation layer; and a conductive member which is provided on the second surface of the flexible insulation layer. A recess is formed on the first land.

Abstract: There is provided a flexible printed circuit board. The flexible printed circuit board includes: a flexible insulation layer having a first surface and a second surface; a first land which is conductive and which is provided on the first surface of the flexible insulation layer; and a conductive member which is provided on the second surface of the flexible insulation layer. A recess is formed on the first land.

Abstract: A load detection apparatus includes a load input portion having a input surface, and an output surface; a flexure element including on annular portion including a contacting portion configured to make contact with at least a part of the output surface, and a support portion; a set of sensors disposed on a reverse surface opposite to a surface provided with the contacting portion in the annular portion, each of the set of sensors being configured to detect distortion corresponding to an input load; a set of calculation portions configured to calculate a set of magnitudes of the load by use of respective detection results obtained by the set of sensors; and an abnormality determination portion configured to determine whether the set of sensors and the set of calculation portions have no abnormality, by comparing the set of magnitudes of the load with each other.

Abstract: There is provided a flexible printed circuit board. The flexible printed circuit board includes: a flexible insulation layer having a first surface and a second surface; a first land which is conductive and which is provided on the first surface of the flexible insulation layer; and a conductive member which is provided on the second surface of the flexible insulation layer. A recess is formed on the first land.

Abstract: There is provided a flexible printed circuit board that is provided with: an insulating layer having flexibility; at least one electrode including: an upper surface electrode formed on an upper surface of the insulating layer; a lower surface electrode S formed on a lower surface of the insulating layer; and a through hole that penetrates the insulating layer and electrically connects the upper surface electrode and the lower surface electrode; and a protrusion formed at a position near the through hole.

Abstract: A strain gage includes a strain sensitive element; and a temperature compensation element, wherein the strain sensitive element and temperature compensation element are monolithically formed. A method of manufacturing the strain gage includes: exposing and developing a strain sensitive element pattern and the temperature compensation element pattern; and etching the strain sensitive element pattern and the temperature compensation element pattern.

Abstract: A strain gage includes a strain sensitive element; and a temperature compensation element, wherein the strain sensitive element and temperature compensation element are monolithically formed. A method of manufacturing the strain gage includes: exposing and developing a strain sensitive element pattern and the temperature compensation element pattern; and etching the strain sensitive element pattern and the temperature compensation element pattern.

Abstract: A bend sensor according to one aspect of the present invention is a bend sensor for sensing a bend of a base member in a longitudinal direction comprising: the base member; and a plurality of strain sensitive elements which are disposed at different positions in a width direction on an one side surface of the base member and are disposed at two or more different positions in a thickness direction of the base member.

Abstract: The detection unit Ud is configured by arranging two strain sensitive elements X1 and X2 respectively at each side of the X-axial direction relative to the center of the strain causing plate 2, and arranging two strain sensitive elements Y1 and Y2 respectively at each side of the Y-axial direction relative to the center of the strain causing plate 2. The signal processing part Um is provided with the X-axial bridge circuit 4 for detecting a force in the X-axial direction by the strain sensitive elements X1 and X2 arranged at the both sides in the X-axial direction, the Y-axial bridge circuit 5 for detecting a force in the Y-axial direction by the strain sensitive elements Y1 and Y2 arranged at both sides in the Y-axial direction, and the Z-axial bridge circuit 6 for detecting a force in the Z-axial direction by a bridge circuit including the X-axial bridge circuit 4 and the Y-axial bridge circuit 5.

Abstract: A bend sensor according to one aspect of the present invention is a bend sensor for sensing a bend of a base member in a longitudinal direction comprising: the base member; and a plurality of strain sensitive elements which are disposed at different positions in a width direction on an one side surface of the base member and are disposed at two or more different positions in a thickness direction of the base member.

Abstract: The detection unit Ud is configured by arranging two strain sensitive elements X1 and X2 respectively at each side of the X-axial direction relative to the center of the strain causing plate 2, and arranging two strain sensitive elements Y1 and Y2 respectively at each side of the Y-axial direction relative to the center of the strain causing plate 2. The signal processing part Um is provided with the X-axial bridge circuit 4 for detecting a force in the X-axial direction by the strain sensitive elements X1 and X2 arranged at the both sides in the X-axial direction, the Y-axial bridge circuit 5 for detecting a force in the Y-axial direction by the strain sensitive elements Y1 and Y2 arranged at both sides in the Y-axial direction, and the Z-axial bridge circuit 6 for detecting a force in the Z-axial direction by a bridge circuit including the X-axial bridge circuit 4 and the Y-axial bridge circuit 5.