A powder flow monitoring system may include a computing device configured to receive image data representing illuminated powder of a powder stream between a powder delivery device and a build surface of a component, generate a representation of the powder stream based on the image data, and output the representation of the powder stream for display at a display device.

A flowmeter for gaseous fluid includes a conduit composed of non-electrically conductive material for passage of an ionized flow of the gaseous fluid therethrough. The flowmeter further includes an electromagnetic sensor arranged to measure a magnetic field generated about the conduit by the passage of the ionized flow and generate a signal proportional to the magnetic field.

A sensor device includes a pipe, a sensor connector, a sensor, a sealing member, a first clip insertion window, a second clip insertion window, a clip, and at least one cutout portion. The pipe defines a fluid passage. The sensor connector defines a sensor insertion hole. The sensor detects a physical quantity of a fluid flowing through the fluid passage and includes a large diameter portion, a small diameter portion, and a step portion. The second clip insertion window is located opposite to the first clip insertion window relative to an axis of the sensor insertion hole. The clip is inserted into the first clip insertion window and the second clip insertion window to fix the sensor in the sensor insertion hole by holding both sides of the small diameter portion.

A sensor device includes a pipe, a sensor connector, a sensor, a sealing member, a first clip insertion window, a second clip insertion window, a clip, and at least one cutout portion. The pipe defines a fluid passage. The sensor connector defines a sensor insertion hole. The sensor detects a physical quantity of a fluid flowing through the fluid passage and includes a large diameter portion, a small diameter portion, and a step portion. The second clip insertion window is located opposite to the first clip insertion window relative to an axis of the sensor insertion hole. The clip is inserted into the first clip insertion window and the second clip insertion window to fix the sensor in the sensor insertion hole by holding both sides of the small diameter portion.

An x-ray mass flow rate sensor uses a low density polymer pipe, an x-ray source, and an x-ray detector. The polymer pipe has a low density (less than 2.8 SG) and a high pressure rating (greater than 5 ksi). By using a low density polymer pipe, the sensor is able to use an x-ray source that does not require a linear accelerator and is less than or equal to 450 kV. The x-ray source and the x-ray detector are mounted on opposite sides of the polymer pipe to form a detection area that passes through the polymer pipe. A real-time calibration of the sensor is performed by detecting gray level values in a calibration region of the detection area for two reference materials placed in the detection area. The sensor may additionally include a mechanical flow rate sensor with a plurality of pistons with springs of varying spring constants.

A flow measurement apparatus can include a main flow passage, a bypass flow passage having an inlet and an outlet connected with the main flow passage, a mass flowmeter connected in the bypass flow passage between the inlet and the outlet, and a flow restrictor connected in the bypass flow passage between the inlet and the outlet. A method can include connecting the flow measurement apparatus, so that a fluid flow in the well also flows through the flow measurement apparatus, and determining at least one rheological parameter of a non-Newtonian fluid, based on an output of the flow measurement apparatus.

An air cart for use in an agricultural air seeding system includes a first storage compartment for holding a first granular product type. The air cart also includes a second storage compartment for holding a second granular product type different from the first granular product type. The air cart further includes a common conduit configured to receive the first granular product type from the first storage compartment and the second granular product type from the second storage compartment to enable simultaneous flow of the first granular product type and the second granular product type. The air cart even further includes a multi-product particle flow rate sensing system configured to monitor respective flow rates for both the first granular product type and the second granular product type during simultaneous flow of the first granular product type and the second granular product type through the common conduit.

An air cart for use in an agricultural air seeding system includes a first storage compartment for holding a first granular product type. The air cart also includes a second storage compartment for holding a second granular product type different from the first granular product type. The air cart further includes a common conduit configured to receive the first granular product type from the first storage compartment and the second granular product type from the second storage compartment to enable simultaneous flow of the first granular product type and the second granular product type. The air cart even further includes a multi-product particle flow rate sensing system configured to monitor respective flow rates for both the first granular product type and the second granular product type during simultaneous flow of the first granular product type and the second granular product type through the common conduit.

Method and systems for determining acceptance criteria for identification of occluding particles in a lumen of a device are provided. The methods and systems can be used in methods of identifying an occluded device in an inspection method.

Disclosed are a method and a device for measuring a sand content in a miscible phase fluid, the method comprising: flowing of the miscible phase fluid out of an oil and gas well through a pipeline, the miscible phase fluid of the wellhead of the oil and gas well including at least two fluid media; carrying out a measurement with a light quantum of four levels on the miscible phase fluid by a phase separator installed on the pipeline, such that a linear mass of each fluid medium is obtained; calculating a sand content in mass fraction based on the linear mass of all the fluid media, when the fluid media in the miscible phase fluid includes a solid phase sand.