The disclosure describes systems, methods, and apparatuses for monitoring fluorescent peaks using a fluorometer, where the fluorometer comprises an instrument assembly, a circuit assembly, a casing, and a window set into the casing, wherein at least a portion of the instrument assembly is submerged within a liquid and above an analyte workspace; a buoy assembly; one or more emission sources electrically coupled to the circuit assembly, the emission sources configured to emit light in one or more frequencies or wavelength bands; a prism arranged in contact with the window, the prism configured to direct emissions from the emission sources towards the analyte workspace, the prism including at least one angled surface; at least one photosensor positioned above the window and configured to detect fluorescence emissions of analytes in the analyte workspace; and a filter array positioned between the window and the photosensor.

A detection module of an autonomous detection system for in situ monitoring floating polymer particles and phytoplankton in sea water. The detection module is combined with a floating body, and a communication module with an antenna, and is configured for detecting polymer particles and phytoplankton such as algae. The detection module comprises: a detection area for a water sample, notably a salty water flow with polymer particles and/or phytoplankton; ultraviolet light emitting means configured for emitting ultraviolet light in the detection area, light sensing means configured for sensing light from the detection area in order to detect polymer particles and/or phytoplankton such as cyanobacteria; an energy generating module configured for powering said detection module. The UV emitting means comprise a low power consumption UV LED. A detection process, and a use of an UV light source for removing a biolayer in the detection area.

The system enables remote inspection of an object, such as an underwater steel pile, using a plurality of video cameras. The cameras are positioned on a frame along a plane substantially perpendicular to the axis of the object and spaced apart so as to enable inspection of the circumference of the object. Moving the frame along the surface of the object enables a video of the entire surface area of the object to be made. A plurality of wheels are mounted to the frame to provide rolling contact with the surface of the object and to cause the cameras to remain a fixed distance from the surface of the object. A plurality of springs are mounted between the frame and the wheels to further ensure smooth movement of the frame. A plurality of lights mounted to the frame illuminate the surface of the object during the Inspection process.

An apparatus and method for detecting certain materials on a surface using the fluorescence principle. The invention is suitable for materials that emit fluorescence when excited by high energy (short wavelength) visible light or ultraviolet light. The apparatus irradiates a surface to be monitored with excitation light. The light that returns from the surface is analyzed. Fluorescence in the returned light signals the presence of the material to be detected. The invention uses light-emitting diodes, lasers, or other light sources to generate the excitation light, light-sensing integrated circuits or imaging sensors for measuring the fluorescence signals from materials on the monitored surface, light sensors for evaluating the excitation light, and operates with on and off cycles of the excitation light to obtain the signal.

A device of inspecting defects of a wafer diced or aligned, the wafer including, after being diced or aligned, a silicon wafer layer and a blue film affixed to the bottom of the silicon wafer layer, the device including: an immersion liquid detector having a casing, the casing having a transparent lid, allowing a liquid to flow through and fill between the blue film and the transparent lid; a lens assembly disposed in the casing and below the transparent lid; an optical lens assembly disposed in the casing and below the lens assembly; a light source for generating visible light and infrared light; and a visible-light camera and an infrared camera, both adapted to perform imaging on the bottom of the silicon wafer layer.

Methods and systems for detecting oil proximate to a body of ice is disclosed herein. An example system includes an energy emitter disposed proximate to a first surface of a body of ice. An energy detector is disposed proximate to a second surface of the body of ice. The energy detector is used to map a distribution of oil proximate to the body of ice based, at least in part, on differences in energy transmitted through the body of ice.

A system for monitoring at least one parameter of a fluid contained in a container includes a measuring device based on near-infrared spectroscopy designed to be submerged in the cited fluid to be monitored and to take measurements of the fluid. The measuring device includes a measuring area. The monitoring system includes a flotation system joined to the measuring device. The flotation system is arranged, during the use of the monitoring system, floating on the fluid to be monitored such that the measuring area of the measuring device is submerged in the fluid at a constant depth with respect to the level of fluid in the container, such that all the measurements taken by the measuring device are taken at the same depth with respect to the level of the fluid.

The present invention relates to optical measurement devices and systems, and methods of using these systems and devices, and more particularly but not exclusively it relates to a system and apparatus adapted to measure optical properties in-situ.

Methods and systems for detecting oil proximate to a body of ice is disclosed herein. An example system includes an energy emitter disposed proximate to a first surface of a body of ice. An energy detector is disposed proximate to a second surface of the body of ice. The energy detector is used to map a distribution of oil proximate to the body of ice based, at least in part, on differences in energy transmitted through the body of ice.

Disclosed is an optical probe device for analyzing a component of an underwater substance, the optical probe device including: a light source unit for emitting excitation light; a sensing unit for emitting the excitation light into underwater and collecting scattered light scattered from the underwater; a spectroscopy unit for analyzing the scattered light; a light transmitting unit for connecting the light source unit and the sensing unit, and the sensing unit and the spectroscopy unit; and a cap having an opening on one side, configured to receive the sensing unit therein, and configured to allow an air layer inside the opening to separate the sensing unit from an underwater environment when the opening is lowered and submerged in the underwater in the state where the opening is disposed to cover a water surface.