Abstract: A shell assembly includes: a shell component, including an inner surface and an outer surface arranged oppositely, and a first through-hole penetrating the inner surface and the outer surface; an insulating member, at least partially located on the outer surface of the shell component, wherein the insulating member includes a second through-hole communicated with the first through-hole; an electrode terminal, installed in the first through-hole and the second through-hole to insulate and isolate from the shell component through the insulating member; and a flow blocking component, wherein the flow blocking component is configured to block liquid from entering the gap between the shell component and the electrode terminal through the gap between the insulating member and the shell component.

Abstract: Disclosed herein are sensors that include: (a) a circuit board that includes an electronic processor; (b) a plurality of radiation sources, each source being attached to the circuit board; and (c) a spectral detector attached to the circuit board, the spectral detector being configured to analyze radiation derived from one or more of the plurality of radiation sources. During use, the sensors are configured to be worn on a portion of a body of a subject. The electronic processor is configured to cause two or more of the plurality of radiation sources to direct incident radiation to the subject, to cause the spectral detector to analyze radiation from the subject, and to determine one or more properties of the subject based on the radiation from the subject. Methods of making and using these sensors are also disclosed.

Abstract: Disclosed herein are sensors that include: (a) a circuit board that includes an electronic processor; (b) a plurality of radiation sources, each source being attached to the circuit board; and (c) a spectral detector attached to the circuit board, the spectral detector being configured to analyze radiation derived from one or more of the plurality of radiation sources. During use, the sensors are configured to be worn on a portion of a body of a subject. The electronic processor is configured to cause two or more of the plurality of radiation sources to direct incident radiation to the subject, to cause the spectral detector to analyze radiation from the subject, and to determine one or more properties of the subject based on the radiation from the subject. Methods of making and using these sensors are also disclosed.