A flow analyzer includes a flow body having a single-piece construction. The flow body includes a flow path extending through the flow body along a flow direction between opposing inlet and outlet ports and an enclosed wiring conduit extending substantially transverse to the flow direction between a first side of the flow body and a second side of the flow body. The enclosed wiring conduit is isolated from the flow path. An illumination unit is disposed on the first side of the flow body and configured to illuminate fluid within the flow path. An observation unit is disposed on the second side of the flow body and configured to visually observe the fluid within the flow path.

This invention relates to retrievable measuring cell for optical measurements in gas, the cell being defined by a gas conducting pipe having an input end adapted to be connected to a gas flow input intruding gas into the cell and an output end adapted to be connected to a gas flow output. The pipe ends also being adapted to be coupled to optical components including an optical transmitter transmitting light into said cell and an optical receiver adapted to receive light having passed through said cell, the optical beam in said cell having a predetermined shape, the optical components including a light source, at least two minors and a light receiver being mounted in known positions on an external frame covered by the pipe ends. The cell has an elongated shape corresponding to the optical beam shape.

Disclosed are systems and methods for monitoring drilling fluids. One system includes a flow path containing a fluid having at least one component present therein, and a movable housing having at least one optical computing device configured to move with the movable housing along a detection path, the at least one optical computing device including at least one integrated computational element (ICE) configured to optically interact with the fluid over the detection path, wherein the at least one ICE is configured to detect a characteristic of the at least one component and generate an output signal corresponding to the characteristic.

An apparatus and system for measuring and monitoring fouling parameters in a fluid are provided. The apparatus includes a conduit within a housing, wherein at least a portion of the conduit provides a carbon dioxide permeable membrane through which carbon dioxide in the fluid can permeate in use. A carbon dioxide sensor within the housing is configured to measure carbon dioxide levels at the sensor. The housing further includes a light source that irradiates a portion of the conduit and a light sensor that is configured to measure light transmitted through or reflected by the irradiated portion of the conduit to measure the amount of fouling material within the fluid and attached to the irradiated portion of the conduit in use.

Hydrocarbon condensate detection and control. The hydrocarbon condensate detection and control system includes detecting hydrocarbon in an aqueous mixture by sensing fluorescence, turbidity, and color of the aqueous mixture and controlling the flow of the aqueous mixture based on the hydrocarbon content of the aqueous mixture.

Hydrocarbon condensate detection and control. The hydrocarbon condensate detection and control system includes detecting hydrocarbon in an aqueous mixture and controlling the flow of the aqueous mixture based on the hydrocarbon content of the aqueous mixture.

The present disclosure provides optical monitoring devices. In some embodiments, the optical monitoring device includes a heating stirrer, a floating barrel, and a support body arranged to support the floating barrel. The floating barrel includes a barrel body facing the heating stirrer and spaced apart from the heating stirrer by a gap, a cavity provided in the barrel body and configured to accommodate at least one of a vessel and a conduit, an irradiator arranged in the barrel body and configured to radiate light to the cavity, and a light receiver arranged in the barrel body, aligned with the irradiator and the cavity, and configured to receive light from the cavity.

A concentration measurement device 20 for measuring the concentration of the a gas flowing through a junction block 14 connected to a plurality of gas supply lines includes a light source 40 for generating light incident to a flow path formed in the junction block, a photodetector 44 for receiving light emitting from the flow path, and an arithmetic control circuit 46 for determining the concentration of the gas flowing through the flow path based on the output of the photodetector, translucent incident windows 26 and 23 for making light from the light source incident to the flow path and, at least one of the translucent emitting windows 28 and 23 for emitting light passing through the flow path being sealed and fixed to the junction block 14.

Disclosed is a measuring apparatus for determining the concentration of constituents in a fluid, such as cooling lubricants or HFC hydraulic liquids, by refractometry, wherein the fluid present for measuring is guided through a sample chamber, which is connected to a fluid inlet and a fluid outlet and which is at least partially transparent such that the beams of a light source, for example in the form of a laser, passing through the sample chamber containing the fluid at least partially experience a refraction and can be detected by a sensor device outside the sample chamber.

The system includes a dust collector, a pressure controller, a dryer, a gas heat-insulation device, a gas pool, a gas detector, an optical monitor and a computer sequentially connected. The dust collector is used to filter solid particles in a gas. The pressure controller is used to control a flow rate of the gas. The dryer is used to control a humidity of the gas. The gas heat-insulation device is used to control a temperature of the gas. The gas pool is used to carry the gas. The laser is used to irradiate the gas in the gas pool to generate a Raman scattering light. The gas detector is used to collect the Raman scattering light. The optical monitor is used to adjust and amplify a light signal of the Raman scattering light. The computer is used to output a Raman spectrum and a composition and content of a tar.