Provided is a strain sensor including a fixing plate and a strain gauge. The fixing plate includes a first supporting part and a second supporting part flexibly connected to the first supporting part. The present application is advantageous in that a strain sensor with a simple structure, high reliability and high sensitivity is provided. The horizontal status of a contact surface may be detected by a little amount of deformation, and the flexible fixing plate can provide a buffer for the equipment to prevent damages due to direct impact.

Aspects of the subject technology relate to a sensor for a downhole tool. The downhole tool can include a collar and a sensor. The sensor can be secured to the collar for measuring one or more operational characteristics of the downhole tool during operation of the downhole tool. The sensor can include a substrate. The sensor can also include a plurality of strain gauges disposed on the substrate. The plurality of strain gauges can be configured to measure axial strains and torsional strains on the collar for measuring the one or more operational characteristics of the downhole tool.

The present invention relates to a force measuring device (10) for measuring drawing forces on a drawing stock (30) in three dimensions, having a force application element (12) and, arranged spaced apart therefrom, a support element (14), each of which comprises a passage opening for the drawing stock (30), one or more connecting elements (16) that are deformable in three dimensions and that connect the force application element (12) and the support element (14), and arranged on the connecting elements (16), a plurality of measuring elements (18) for measuring the deformations of the connecting elements (16), produced by the drawing forces, in three dimensions.

The present invention also relates to a system (100) for wire drawing, having an inclined wire outlet having such a force measuring device, the use of the force measuring device, and a method for measuring drawing forces on a drawing wire in three dimensions.

Methods and systems for sensing a force using a sense die are provided. The sense die may include a slab die; an actuation element configured to contact the slab die and apply a force to the slab die; and one or more sense elements supported by the slab die.

A load cell has a monolithic measuring body. The monolithic measuring body has: a force-supporting section; a force-introduction section; and a linkage section disposed between the force-supporting section and the force-introduction section. The monolithic measuring body has a longitudinal axis between a force-supporting-side axial end and a force-introduction-side axial end. The longitudinal axis is configured to extend in a horizontal direction. The monolithic measuring body further has, in the force-supporting section, at least one mounting hole for attachment of the monolithic measuring body, the axis of the at least one mounting hole extending in the horizontal direction. At least one strain gauge is configured to sense tensile or compressive deformation of the monolithic measuring body and is in a region of the linkage section on a top side or a bottom side of the monolithic measuring body, the at least one strain gauge being oriented in the horizontal direction.

An object is to reduce the influence of noise due to electric conduction carriers trapped between the surface of a silicon substrate and an oxide and thus achieve strain detection with a high S/N ratio. This semiconductor strain detection element includes: a silicon substrate; and a first impurity diffusion layer having a conduction type different from the silicon substrate, the first impurity diffusion layer being formed inside under a surface of the silicon substrate, wherein an amount of strain in the silicon substrate is detected on the basis of change in a resistance of the first impurity diffusion layer.

A load sensing device for a shoe includes a base element having a first side and an opposite second side. The first side has a predefined area. A first load sensing element and a second load sensing element are positioned at the first side of the base element. The first load sensing element is positioned in a first area of the predefined area of the first side, and the second load sensing element is positioned in a second area of the predefined area of the first side. The first load sensing element has a fixed position relative to the second load sensing element during use. The first load sensing element and the second load sensing element are configured to measure a load applied to at least part of the predefined area of the first side.

An adhesive strain sensing pod includes at least one strain sensor, electronics for electrically sensing at least one strain signal from the at least one strain sensor, and a sensor adhesive for adhering the strain sensor to a surface of a structural element. The pod may have a protective case for protecting the strain sensor and the electronics and for transferring at least part of a force, pressing the pod against the surface, to press the strain sensor against the surface. The sensor adhesive may be a liquid adhesive contained in a fragile pouch that ruptures when the pod is forced against the surface, or may be a thermally activated adhesive film that is activated to bond the strain sensor to the surface. A protective film may protect the sensor adhesive prior to installation of the pod and is removed prior to installation of the pod on the surface.

Described herein are input structures that include an input surface and one or more sensor modules attached to the input surface. Each sensor module includes one or more sensors operably attached to a substrate. The one or more sensors are operable to detect strain on the substrate. One or more portions of the substrate are removed to produce a stress concentration region in proximity to at least one sensor. The stress concentration region concentrates strain in proximity to the at least one sensor.

Methods and systems for detecting membrane blockage in a gas detector are disclosed. In some embodiments, the gas detector comprises a membrane configured to define a sensing chamber of the gas detector. The gas detector further comprises a strain sensor operatively connected to the membrane, the strain sensor configured for generating output signals related to strain in the membrane. The gas detector comprises a controller operatively connected to the strain sensor. The controller is configured to: determine a strain in the membrane based on the output signals; and determine a condition of the membrane based on the determined strain, wherein the determined condition indicates whether the membrane is blocked.