A sensor apparatus includes a cylindrical sensor window defining an axis oriented vertically and a ramp. The sensor window includes an exterior surface facing radially outward relative to the axis. The ramp is on the exterior surface of the sensor window. The ramp includes a leading surface and a trailing surface. The leading surface and the trailing surface are elongated parallel to the axis.

A housing equipped with a viewing window. The housing includes: a housing segment which adjoins a radially inwardly extending shoulder, which terminally externally surrounds a housing opening conically tapering from the housing interior toward the housing exterior. Flushly mounted in the opening, a disk shaped viewing window pane, which has bordering on its outwardly facing surface an external lateral surface conically tapering form the housing interior toward the housing exterior. A one-piece, shaped seal, which has a first portion, which externally completely surrounds the viewing window pane, and which has a second portion, which lies against an outer edge of a surface of the viewing window pane facing inwards into the housing. A support ring secured in the housing segment clamps the viewing window pane in the housing segment.

A housing equipped with a viewing window. The housing includes: a housing segment which adjoins a radially inwardly extending shoulder, which terminally externally surrounds a housing opening conically tapering from the housing interior toward the housing exterior. Flushly mounted in the opening, a disk shaped viewing window pane, which has bordering on its outwardly facing surface an external lateral surface conically tapering form the housing interior toward the housing exterior. A one-piece, shaped seal, which has a first portion, which externally completely surrounds the viewing window pane, and which has a second portion, which lies against an outer edge of a surface of the viewing window pane facing inwards into the housing. A support ring secured in the housing segment clamps the viewing window pane in the housing segment.

A sensor device includes: a casing provided with an opening; a cover member covering the opening; a gasket interposed between the cover member and the casing; and a fixing cover which fixes both the gasket and the cover member to the casing. A plurality of welded portions bonding the casing and the fixing cover together are provided in a region outside the cover member such that the welded portions are distant from each other.

A subsea housing assembly, in particular for a subsea sensor, includes a first housing portion and a second housing portion. The first housing portion includes a first electrical connection for data communication and the second housing portion includes a second electrical connection for data communication. A wall provides separation between the first housing portion and the second housing portion of the subsea housing. An inductive coupler, that includes a first coupling section disposed in the first housing portion and a second coupling section disposed in the second housing portion, is provided. The inductive coupler is configured to provide inductive coupling across the wall for providing at least a data communication between the first and second electrical connections.

A subsea housing assembly, in particular for a subsea sensor, includes a first housing portion and a second housing portion. The first housing portion includes a first electrical connection for data communication and the second housing portion includes a second electrical connection for data communication. A wall provides separation between the first housing portion and the second housing portion of the subsea housing. An inductive coupler, that includes a first coupling section disposed in the first housing portion and a second coupling section disposed in the second housing portion, is provided. The inductive coupler is configured to provide inductive coupling across the wall for providing at least a data communication between the first and second electrical connections.

A thin proximity sensing device includes a transparent plate and a light sensor. The transparent plate includes a first surface and a second surface. The first surface is provided with a light source and a light entering area. The light source is arranged on the first surface. The second surface is provided with a reflector. The light sensor includes a light receiving area. The light sensor is arranged on the transparent plate. The reflector is capable of correspondingly reflecting specific incident light. The specific incident light refers to light that enters the transparent plate through the light entering area on the first surface after the light emitted by the light source is reflected externally, and is incident to the reflector. After reflected by the reflector, the specific incident light is reflected one or more times within the thickness of the transparent plate and is transmitted to the light sensor.

A thin proximity sensing device includes a transparent plate and a light sensor. The transparent plate includes a first surface and a second surface. The first surface is provided with a light source and a light entering area. The light source is arranged on the first surface. The second surface is provided with a reflector. The light sensor includes a light receiving area. The light sensor is arranged on the transparent plate. The reflector is capable of correspondingly reflecting specific incident light. The specific incident light refers to light that enters the transparent plate through the light entering area on the first surface after the light emitted by the light source is reflected externally, and is incident to the reflector. After reflected by the reflector, the specific incident light is reflected one or more times within the thickness of the transparent plate and is transmitted to the light sensor.

A sensor module includes: a base member; at least one of a single or a plurality of sensors and vibrators arranged on the base member; and a protective member constituted of at least one flat surface or a curved surface, provided so as to cover the at least one of the sensors and the vibrators. A part or whole of the protective member is formed of a strengthened glass and the strengthened glass is a chemically strengthened glass or a physically strengthened glass.

A sensor module includes: a base member; at least one of a single or a plurality of sensors and vibrators arranged on the base member; and a protective member constituted of at least one flat surface or a curved surface, provided so as to cover the at least one of the sensors and the vibrators. A part or whole of the protective member is formed of a strengthened glass and the strengthened glass is a chemically strengthened glass or a physically strengthened glass.