A decontamination device removes particles from a gas flow and is usable in a gas metering device. The decontamination device may include an upper portion defining a plurality of openings and a lower portion attached to the upper portion. In an example, the lower portion includes a first curved ramp to redirect the gas flow and a plurality of fingers in a path of the redirected gas flow. First and second flow pipes receive incoming gas and bifurcate the gas flow, which is redirected at the first curved ramp. The fingers contact and remove particles in the redirected gas flow. A second curved ramp may include at least one hole to bifurcate the gas flow into a first gas flow passing through the at least one hole and a second gas flow redirected by the second curved ramp to pass through the plurality of openings defined in the upper portion.

A physical quantity measuring device detects a physical quantity of gas flowing in a flow passage. The physical quantity measuring device includes a sensor element that outputs a detection signal according to the physical quantity, a case that is provided to the flow passage and houses the sensor element, and a protrusion that protrudes from a passage wall surface facing the flow passage. The case includes a measurement chamber that houses the sensor element and an inflow port that is configured to cause a part of gas flowing in the flow passage to flow into the measurement chamber therethrough. The protrusion is configured to guide gas flowing along the passage wall surface toward the inflow port.

A multifunctional dust trap for reducing an acoustic noise and dust filtering comprising: an inlet connected to a gas inlet of a gas meter; a chamber, connected to the inlet, to receive a flow of a gas, comprises: a first wall to deflect the flow of the gas in a first direction, wherein the first wall directs the flow of the gas into a cross sectional area of the chamber, which reduces a velocity of the deflected gas such that a centrifugal force guides a plurality of dust particles towards a base of the chamber; and a second wall to deflect the flow of the gas in a second direction; and an outlet, attached to the chamber, to enable an exit of a clean flow of the gas away from one or more flow inlets of a flow tube installed within the gas meter.

A flow rate assembly can include a housing having a measurement channel extending along the housing axis and through a portion of the housing between the first and second ends of the housing, an outer cup portion positioned at least partly within the housing, and a transducer positioned within the outer cup portion and sealed from fluid flow past the outer cup portion, the transducer having a width perpendicular to the housing axis and greater than the width of the measurement channel, the transducer configured to generate an ultrasonic signal and to direct the ultrasonic signal through the measurement channel.

A meter electronics (20) configured to clean a conduit in a vibratory meter (5) is provided. The meter electronics (20) includes an interface (201) configured to provide a drive signal to a meter assembly (10) communicatively coupled to the meter electronics (20) and receive one or more sensor signals from the meter assembly (10), and a processing system (202) communicatively coupled to the interface (201). The processing system (202) is configured to determine a parameter from the one or more received sensor signals. The processing system (202) is further configured to, based on the parameter, at least one of detect an unclean condition of the meter assembly (10) and enter into a cleaning mode, and detect a clean condition of the meter assembly (10) and enter into a non-cleaning mode.

A meter electronics (20) configured to clean a conduit in a vibratory meter (5) is provided. The meter electronics (20) includes an interface (201) configured to provide a drive signal to a meter assembly (10) communicatively coupled to the meter electronics (20) and receive one or more sensor signals from the meter assembly (10), and a processing system (202) communicatively coupled to the interface (201). The processing system (202) is configured to determine a parameter from the one or more received sensor signals. The processing system (202) is further configured to, based on the parameter, at least one of detect an unclean condition of the meter assembly (10) and enter into a cleaning mode, and detect a clean condition of the meter assembly (10) and enter into a non-cleaning mode.

Differential pressure airflow sensor devices are disclosed. Disclosed are sensor devices for mounting on a fixed resistance having a low-pressure probe for extending through the fixed resistance from a housing and a high-pressure inlet to the housing. Disclosed are sensor devices having a plurality of pressure transducers.

A sampler 1 including an inlet 10a,b, an outlet 20 and a flushing device 30, the sampler 1 adapted such that a sample fluid flows from the inlet 10a,b, out the outlet 20 and into sample containers 40, wherein, the flushing device 30 is adapted to flush a pressurised flushing fluid past all surfaces of the sampler 1 which are adapted to contact the sample fluid.

An object is to provide a flow sensing device improved in weather resistance and insect resistance. A flow sensing device includes: a cover member; a cap member disposed below the cover member; a foreign-body intrusion prevention net surrounding a space between the cover member and the cap member; a light emitting element disposed in a housing space surrounded by the cover member, the cap member, and the foreign-body intrusion prevention net; and a sensing element disposed inside the foreign-body intrusion prevention net in the housing space, the sensing element including a thermosensitive resistive element.

Provided is an apparatus for dosaging a particulate material. The particulate material includes, at least in operation, a cavity having an inlet opening facing upwardly for receiving the material from an external source, an outlet opening facing downwardly, for disposing therethrough dosages of the material and a dosage feeder located inside the cavity and having at least one dosage recess.