A system and method of measuring bioelectric signals generated by an individual, inclusive of humans or other living organisms, comprises a plurality of sensors, at least one of the plurality of sensors being constituted by a capacitive-type sensor. Sensor has an associated insulated layer of material preventing the conduction of direct current between an electrode and individual, wherein a bioelectric signal of individual can be measured underwater.

A system and method of measuring bioelectric signals generated by an individual, inclusive of humans or other living organisms, comprises a plurality of sensors, at least one of the plurality of sensors being constituted by a capacitive-type sensor. Sensor has an associated insulated layer of material preventing the conduction of direct current between an electrode and individual, wherein a bioelectric signal of individual can be measured underwater.

Devices, apparatus, systems and methods to regulate pressure in earplug are disclosed. Some embodiments provide auditory attenuation and others may further include communications capability. The devices and apparatus are well-suited for use by divers and pilots in particular.

Devices, apparatus, systems and methods to regulate pressure in earplug are disclosed. Some embodiments provide auditory attenuation and others may further include communications capability. The devices and apparatus are well-suited for use by divers and pilots in particular.

This disclosure provides a protective diving system for isolating a diver from a hazardous diving environment. The protective diving system can include a dry suit system including a dry suit and a surface exhaust valve coupled to the dry suit, and a return-surface exhaust assembly configured to exhaust gas from the dry suit system to a breathable atmosphere outside of the diving environment of the diver. The surface exhaust valve is configured to receive gas from the dry suit and exhaust gas to the return-surface exhaust assembly without exhausting to the surrounding diving environment. The protective diving system can further include one or more chemically-resistant components, where the chemically-resistant components include a fluoroelastomer.

Devices, apparatus, systems and methods to regulate pressure in earplug are disclosed. Some embodiments provide auditory attenuation and others may further include communications capability. The devices and apparatus are well-suited for use by divers and pilots in particular.

Devices, apparatus, systems and methods to regulate pressure in earplug are disclosed. Some embodiments provide auditory attenuation and others may further include communications capability. The devices and apparatus are well-suited for use by divers and pilots in particular.

A pressure-regulating earplug including an earplug body having an external surface adapted for sealingly engaging an ear canal, the earplug body including a conduit configured to provide fluid communication with an external atmosphere and the ear canal; and a sound blocking bidirectional pressure regulator in-line with the conduit, configured to be normally closed, preventing fluid communication between the external atmosphere and the ear canal, and selectively open, the sound blocking bidirectional pressure regulator including a valve assembly configured to automatically open at a first pressure differential and a second pressure differential, wherein the first pressure differential and the second pressure differential are substantially similar in magnitude and opposite in direction enabling bidirectional pressure equalization, wherein the valve assembly acoustically seals when closed to minimize sound transmission.

A pressure-regulating earplug including an earplug body having an external surface adapted for sealingly engaging an ear canal, the earplug body including a conduit configured to provide fluid communication with an external atmosphere and the ear canal; and a sound blocking bidirectional pressure regulator in-line with the conduit, configured to be normally closed, preventing fluid communication between the external atmosphere and the ear canal, and selectively open, the sound blocking bidirectional pressure regulator including a valve assembly configured to automatically open at a first pressure differential and a second pressure differential, wherein the first pressure differential and the second pressure differential are substantially similar in magnitude and opposite in direction enabling bidirectional pressure equalization, wherein the valve assembly acoustically seals when closed to minimize sound transmission.

An XR glasses-equipped underwater exploration helmet and a method of operating the same are disclosed. The XR glasses-equipped underwater exploration helmet includes: an XR execution module creating XR data; an XR display displaying the XR data created by the XR execution module; a GPS module creating GPS location information; and a GPS signal wireless transmission module creating in real time a GPS wireless signal including the GPS location information created in real time by the GPS module, and transmitting the real-time created GPS wireless signal, wherein the XR data are composed of at least one or more of a current water depth, a current underwater temperature, a dive time, and a remaining air volume. According to the XR glasses-equipped underwater exploration helmet and a method of operating the same described above, since an XR glass is mounted on an underwater exploration helmet and is configured to display data such as a remaining air volume of an air tank, a water depth, a water temperature, a dive time, an available dive time, etc., so there is an effect that a diver can conveniently explore without having to frequently check a diving computer or gauges during diving.