An aircraft includes a gas turbine engine and an optically-based measurement system. The gas turbine engine is configured to ingest a first mass flow and to exhaust a second mass flow. The optically-based measurement system is configured to determine the first and second mass flows in response to performing an imaging process on the gas turbine engine.

The invention provides a device for monitoring a fluid flux, said device comprising a body suitable for being introduced in a medium carrying a fluid flow, which body provides one or more passages for the fluid, each having an inlet, an outlet, and a reduced channel portion in fluid communication with said inlet and outlet via respective inlet and outlet funnels, said device further comprising means for determining a flow rate of fluid traveling within one or more of said reduced channel portions. In particular, at least one of said reduced channel portions is misaligned with respect said inlets and outlets. In a further aspect, the invention provides a method for monitoring a fluid flux.

Disclosed herein is a method for assessing a flow a sprayed coating, including the steps of spraying a coating onto a surface and capturing a plurality of images of the sprayed surface at a predetermined frequency within a predetermined interval of time, and a computer program product for assessing a flow of a sprayed coating.

Provided herein are improved methods for estimating the flow velocity of a fluid in a vessel. Systems and methods are provided herein related to making and/or refining velocity measurements for flowing fluids, both single and multi-phase fluids, in vessels, such as pipes or conduits, utilizing contrast media property agent variations. In one aspect, this disclosure provides a method of determining a flow velocity of a fluid flow in a vessel including: providing a fluid flow having contrast media, the contrast media having a contrast media property variation; providing a detectable signal corresponding to the contrast media property variation; collecting the detectable signal at an upstream receiver to produce a first received signal; collecting the detectable signal at a downstream receiver to produce a second received signal, the downstream receiver being located downstream of the upstream receiver at a distance (L); filtering the first received signal and the second received signal through a contrast media variant filter to produce a first filtered signal and a second filtered signal; cross-correlating the first filtered signal and the second filtered signal to determine a time shift (Δt) between the first filtered signal and the second filtered signal; and estimating the velocity of the fluid flow using this relationship vflow=L/Δt.

An imaging system for measuring flow rates of the individual phases of a multiphase flow and for providing images of the multiphase flow, wherein the imaging system is adapted to also measure the thickness of deposits on the internal wall of a pipe, and to a method for analyzing a multiphase flow flowing through a pipe using the imaging system.

An imaging system for measuring flow rates of the individual phases of a multiphase flow and for providing images of the multiphase flow, wherein the imaging system is adapted to also measure the thickness of deposits on the internal wall of a pipe, and to a method for analyzing a multiphase flow flowing through a pipe using the imaging system.

A monitoring device provided for monitoring the delivery of fluids through a drip chamber. The device includes an electromagnetic radiation (EMR) source and an EMR detector. The device includes a tubing set mount for receiving a flange or other portion of a tubing set, such that fluid falling through the drip chamber of the tubing set is detected by the detector. The device is operable to determine one or more rolling averages based on intervals of drops or time.

A monitoring device provided for monitoring the delivery of fluids through a drip chamber. The device includes an electromagnetic radiation (EMR) source and an EMR detector. The device includes a tubing set mount for receiving a flange or other portion of a tubing set, such that fluid falling through the drip chamber of the tubing set is detected by the detector. The device is operable to determine one or more rolling averages based on intervals of drops or time.

A ray transceiving system of an underwater flowmeter includes a flowmeter body. A fluid metering channel, a transmitting window, and a probing window are arranged on the flowmeter body. The transmitting window and the probing window are respectively in communication with the fluid metering channel, and each of the transmitting window and the probing window is provided with a titanium alloy isolation seat and a beryllium pad. Titanium alloy is used to seal the fluid metering channel, the titanium alloy and the beryllium pad are combined to bear pressure, and the beryllium pad is used to reduce absorption of gamma rays. A deduction metering method of the underwater flowmeter partially deducts the gamma count rate distortion caused by the Compton scattering effect, and calculates the content of each phase in a three-phase mixed flow to improve the metering accuracy of the three-phase content of oil, gas, and water.

The systems and methods provided herein relate generally to the improvement of data quality in optical liquid particle counters and control of optical particle counters to achieve longer expected lifetime, for example by avoiding damage caused by electromagnetic radiation and heat. The systems and methods incorporate sensors which characterize the fluid flowing through the flow cell, thereby enhancing accuracy and reducing the number of false positives.