Provided is a light irradiation device capable of safely detecting liquid leakage in the occurrence of the liquid leakage. A light irradiation device includes a light-emitting element, a cylindrical light source supporter having an outer wall surface on which the light-emitting element is disposed, a flow groove formed on the outer wall surface in an axial direction of the light source supporter, a reservoir that is communicated to the flow groove at a first end of the light source supporter in the axial direction and that is configured to allow liquid to be stored, and a detector configured to detect the liquid stored in the reservoir. The first end of the light source supporter is located at a position downward in the vertical direction relative to a second end of the light source supporter, the reservoir being disposed at the first end in the axial direction thereof.

Provided is a light irradiation device capable of safely detecting liquid leakage in the occurrence of the liquid leakage. A light irradiation device includes a light-emitting element, a cylindrical light source supporter having an outer wall surface on which the light-emitting element is disposed, a flow groove formed on the outer wall surface in an axial direction of the light source supporter, a reservoir that is communicated to the flow groove at a first end of the light source supporter in the axial direction and that is configured to allow liquid to be stored, and a detector configured to detect the liquid stored in the reservoir. The first end of the light source supporter is located at a position downward in the vertical direction relative to a second end of the light source supporter, the reservoir being disposed at the first end in the axial direction thereof.

An autonomous robotic vehicle is capable of detecting, identifying, and locating the source of gas leaks such as methane. Because of the number of operating components within the vehicle, it may also be considered a robotic system. The robotic vehicle can be remotely operated or can move autonomously within a jobsite. The vehicle selectively deploys a source detection device that precisely locates the source of a leak. The vehicle relays data to stakeholders and remains powered that enables operation of the vehicle over an extended period. Monitoring and control of the vehicle is enabled through a software interface viewable to a user on a mobile communications device or personal computer.

An implantable optical sensor (1) comprising a substrate (2) and at least one optical microstructure (3) for evanescent field sensing integrated with the substrate (2), the at least one optical microstructure (3) being positioned to form an optical interaction area (4) on a part of a surface (5) of the substrate (2), the optical assembly (1) further comprising a thin protective layer (6) covering at least the optical interaction area (4), the thin protective layer (6) being in a predetermined material with corrosion-protection characteristics and having a predetermined thickness, so as not to affect the evanescent field sensing.

A remote control system 1 having a function as an inspection system includes a plurality of cameras 25, 60 which are located in a location environment of a construction machine 10, a captured image processing unit 50a configured to cause a display unit 45 to display captured images, and a camera selection unit 50b configured to select an inspection camera from the plurality of cameras 25, 60 at a time of inspection of the construction machine 10. The captured image processing unit 50a is configured to receive an image captured by the selected inspection camera to include an image of a portion to be inspected and cause the display unit 45 to display the captured image.

Automated flowline leak sealing can be implemented as a flowline sealing tool assembly. A sealing sleeve is configured to be positioned within a flowline with a circumferential leak. The sealing sleeve includes a pair of ends configured to be positioned on either side of the circumferential leak. A pair of sealing elements are attached to the pair of ends, respectively, and are configured to seal the pair of ends to an inner wall of the flowline on either side of the circumferential leak. A deployment tool includes a hollow cylinder configured to be inserted into and retracted from an inner volume defined by the sealing sleeve. The deployment tool is configured to activate the pair of sealing elements to seal the pair of ends to the inner wall of the flowline on either side of the circumferential leak in response to being retracted from the inner volume.

In order to provide a detection device that is capable of detecting the submersion of a fiber-optic cable in water before water penetrates the interior of the fiber-optic cable, a detection system 1 comprises: a vibration-detecting fiber-optic cable 20; a receiving means 11 that receives an optical signal including vibrations detected by the fiber-optic cable 20; and a detection means 12 that detects submersion of the fiber-optic cable in water on the basis of the vibrations included in the optical signal.

Methods and systems of testing for a gas leak between an inlet zone and an outlet zone of a gas flow component in a shut state are provided. Different tracer and carrier gases are used. The carrier gas is circulated through the outlet zone of the gas flow component to purge the tracer gas from this outlet zone. A spectroscopic emission from the carrier gas indicative of an amount of the purged tracer gas is monitored. A test flow of the tracer gas is introduced in the inlet zone of the gas flow component, and the inlet pressure is increased for successive pressure increments. The presence of a gas leak is determined upon detecting an intensity step variation in the monitored spectroscopic emission following one of the pressure increments in the inlet pressure.

Systems and methods disclosed herein, in accordance with one or more embodiments provide for imaging gas in a scene, the scene having a background and a possible occurrence of gas. In one embodiment, a method and a system adapted to perform the method includes: controlling a thermal imaging system to capture a gas IR image representing the temperature of a gas and a background IR image representing the temperature of a background based on a predetermined absorption spectrum of the gas, on an estimated gas temperature and on an estimated background temperature; and generating a gas-absorption-path-length image, representing the length of the path of radiation from the background through the gas, based on the gas image and the background IR image. The system and method may include generating a gas visualization image based on the gas-absorption-path-length image to display an output image visualizing a gas occurrence in the scene.

Systems and methods disclosed herein, in accordance with one or more embodiments provide for imaging gas in a scene, the scene having a background and a possible occurrence of gas. In one embodiment, a method and a system adapted to perform the method includes: controlling a thermal imaging system to capture a gas IR image representing the temperature of a gas and a background IR image representing the temperature of a background based on a predetermined absorption spectrum of the gas, on an estimated gas temperature and on an estimated background temperature; and generating a gas-absorption-path-length image, representing the length of the path of radiation from the background through the gas, based on the gas image and the background IR image. The system and method may include generating a gas visualization image based on the gas-absorption-path-length image to display an output image visualizing a gas occurrence in the scene.