A variable resistor includes: a first substrate having a first main surface; a resistor disposed on the first main surface; a first wiring pattern disposed on the first main surface and connected to the resistor; a spacer having an opening; a second substrate that: has second and third main surfaces, and is disposed on the first substrate via the spacer such that the second main surface is opposed to the first main surface; a connecting body that is: disposed on the second main surface such that the connecting body is disposed in the opening, and configured to electrically connect to the resistor by pushing of a pusher from the third main surface; and a second wiring pattern. A resistance value between the first wiring pattern and the second wiring pattern is changed based on a pushing position of the pusher.

A force sensor comprising a force sensitive resistor having a common electrode and an electrode array separated by a force sensitive resistor material. The sensor includes a preload structure, where the preload structure imparts a force on the force sensitive resistor material. The sensor may also include a signal conditioning board to read a signal from the electrode array and convert it to a digital output.

An element includes an upper electrode, a flexible intermediate layer, and a lower electrode. The upper electrode having an uneven structure. The lower electrode is closely attached to the intermediate layer. The element is configured to generate an electrical signal due to contact and separation between the upper electrode and the intermediate layer. The lower electrode is configured to take a shape fittable to the uneven structure when the upper electrode and the intermediate layer come into contact with each other.

Embodiments of the present disclosure disclose a variable resistance and a manufacturing method thereof, and the variable resistance is a variable resistance with continually adjustable resistance value. This variable resistance comprises: an elastic insulation envelope and conductive particles filled in the elastic insulation envelope. The manufacturing method of the variable resistance comprises: filling conductive particles into an elastic insulation envelope with an opening; and sealing the opening of the elastic insulation envelope.

A vehicle trim element that includes at least one supporting layer having an internal face and an external face, and a skin having an internal face and an external face. The internal face of the skin covers the external face of the supporting layer in at least one detection area. The supporting layer has a through-orifice extending from the internal face to the external face of the supporting layer. At least one detection element is located in the through-orifice. The detection element is in constant contact with the portion of the internal face of the skin covering the through-orifice of the supporting layer.

A vehicle trim element that includes at least one supporting layer having an internal face and an external face, and a skin having an internal face and an external face. The internal face of the skin covers the external face of the supporting layer in at least one detection area. The supporting layer has a through-orifice extending from the internal face to the external face of the supporting layer. At least one detection element is located in the through-orifice. The detection element is in constant contact with the portion of the internal face of the skin covering the through-orifice of the supporting layer.

A method includes coating at least one conductive element of an electronic device with an electrically non-conductive thixotropic liquid. An electronic device includes a first layer including an upper conductive element, a second layer including a lower conductive element, and a spacer positioned between the layers. The first layer, the second layer, and the spacer define a sensing chamber in which the upper and lower conductive elements move to vary the resistance of the electronic device. A non-conductive thixotropic liquid is present within the sensing chamber. Movement of the layers toward each other displaces the thixotropic liquid from an initial state coating at least one of the conductive elements to permit contact between the conductive elements, and movement of the first layer and the second layer away from each other returns the thixotropic liquid to the initial state.

A strain gauge includes a flexible substrate, and resistors each formed of a Cr composite film. The resistors include a first resistor formed on one side of the substrate and includes a second resistor formed on another side of the substrate. The first resistor and the second resistor are arranged such that grid directions of the first resistor and the second resistor intersect in a plan view.

A strain gauge includes a flexible substrate, and resistors each formed of a Cr composite film. The resistors include a first resistor formed on one side of the substrate and includes a second resistor formed on another side of the substrate. The first resistor and the second resistor are arranged such that grid directions of the first resistor and the second resistor intersect in a plan view.

A method includes coating at least one conductive element of an electronic device with an electrically non-conductive thixotropic liquid. An electronic device includes a first layer including an upper conductive element, a second layer including a lower conductive element, and a spacer positioned between the layers. The first layer, the second layer, and the spacer define a sensing chamber in which the upper and lower conductive elements move to vary the resistance of the electronic device. A non-conductive thixotropic liquid is present within the sensing chamber. Movement of the layers toward each other displaces the thixotropic liquid from an initial state coating at least one of the conductive elements to permit contact between the conductive elements, and movement of the first layer and the second layer away from each other returns the thixotropic liquid to the initial state.