Abstract: A textile contractible band for use in a wearable garment for applying pressure to a subject body part includes a shape memory material, in particular a shape memory alloy, or shape memory polymer, part and a textile part, said parts being successively coupled to form said contractible band, wherein the shape memory material part has an electrically-contractible shape memory material and a spring arranged to reverse the contraction of the shape memory material, and wherein the textile part has an elastic fabric band and an optical fiber strain sensor arranged to sense the fabric band strain. The sensor can be a lossy optical fiber arranged in meandering layout such that variation of band extension causes variation of transmitted light. The contractual band can be used for lymphedema or venous return.

Abstract: Liquid fuel tank comprising a plurality of liquid level detection capacitive sensors, each arranged along an edge of the fuel tank such that the capacitance of said sensors varies with the volume of fuel present in the fuel tank, wherein an independent liquid level detection capacitive sensor is arranged along each edge of the fuel tank bottom and of the side walls; wherein the tank is electrically conductive and each level sensor comprises an electrically insulating plate arranged thickness-wise between sensor and tank, such that tank and sensors are capacitively uncoupled. Method for obtaining the fuel volume comprising: obtaining the reading of the liquid level detection capacitive sensors arranged on the edges of the tank; calculating the volume, corresponding to the fuel, of the geometric solid defined by the fuel tank and by the upper surface of the fuel as defined by the liquid level readings from the sensors.