Fuente: Wipo "Sensorization" An analyte measuring system including an enclosure comprising a top shell having an outer top-shell periphery and an inner top-shell periphery, and a mounting base having an outer mounting-base periphery: a circuit board disposed within the enclosure, the circuit board having a connector: an analyte sensor assembly configured to connect to the connector on the circuit board: wherein the outer top-shell periphery can be ultrasonically welded to the outer mounting-base periphery and the inner top-shell periphery can be ultrasonically welded to the inner mounting base periphery. A method for constructing of an analyte sensor and an enclosure for an analyte monitoring system are also disclosed.