A pressure sensor includes a pressure sensing-element in fluid communication with a port and an oil separator in the port. The oil separator is configured to reduce an amount of oil-vapor residue that reaches the pressure sensing element by elongating a path of fluid from an opening of the port to the pressure sensing element and by creating additional surface area within the port upon which oil-vapor residue -may be deposited. There is also a cover, which has holes, and that is configured to prevent the oil separator from felling out of the port. The oil separator may include circular discs having cut-out portions. The cut-out portions on adjacent circular discs may he rotated relative to one another about a longitudinal axis of the oil separator. The cut-out portions may have a semi-circular shape.

An ultra-low pressure, vapor analyte, and vapor pathway parameter monitoring system can include an embedded server comprising a base radio and memory. In some embodiments, the embedded server is communicatively coupled to a third-party database. The system can include a first monitoring device comprising a first ultra-low pressure sensor and a first radio communicatively coupled to the base radio. The embedded server can be remotely located with respect to the first monitoring device whereby the embedded server receives first pressure data from the first monitoring device.

An electrode performance evaluation system and an electrode performance evaluation method is disclosed. The method includes acquiring impedance measurement data for different frequencies by applying an alternating current signal to an electrode assembly including an electrode which is immersed in an electrolyte solution, calculating impedance calculation data for different frequencies while changing the frequency of an impedance equation corresponding to a circuit model of the electrode assembly, calculating the resistance value of ion bulk resistance in the electrolyte solution using the ion conductivity of the electrolyte solution, the area of the electrode and the thickness and porosity of an active material layer of the electrode, and determining effective tortuosity as a factor of the electrode performance based on the impedance measurement data for different frequencies, the impedance calculation data for different frequencies and the resistance value of the ion bulk resistance.

A device for monitoring an electrical submersible pump having a motor includes an integrated temperature sensor and electrical feedthrough assembly having a probe body housing the temperature sensor, the electrical feedthrough assembly, and a high voltage insulator; an electronics assembly operably connected to the integrated temperature sensor and the electrical feedthrough assembly; and a pressure assembly operably connected to the electronics assembly.

The example embodiment relates to a pressure measuring unit for determining the oil pressure in a motor vehicle transmission, including a circuit carrier, a pressure sensor, an electrical interface, a mechanical interface and a hydraulic interface. The pressure sensor is electrically connected to the circuit carrier by means of the electrical interface and mechanically connected to the circuit carrier by means of the mechanical interface on the first side of the circuit carrier. The hydraulic interface connecting the pressure measuring unit to a user hydraulic component is arranged on a side of the circuit carrier that is situated opposite the first side, and wherein an opening is arranged in the circuit carrier for pressure equalization between the pressure sensor and the hydraulic interface.

A flow sensing module is provided for determining a flow rate of a fluid flowing through a flow channel. The flow sensing module may include an integrated flow restrictor, sometimes including a plurality of concentric ribs defining a plurality of orifices shaped to match the curvature of the wall of the flow channel. A first sensing port may open into the flow channel upstream of the flow restrictor, and a second sensing port may open into the flow channel downstream of the flow restrictor. A flow rate of a fluid flowing through the flow channel may be determining using a differential pressure between the first and second ports created by the flow restrictor, either using a flow sensor or a pressure sensor. The particular arrangement and relative dimensions of the orifices of the flow restrictor and the pressure ports can result in substantially reduced noise.

A blood pressure measurement module includes a base, a valve plate, a top cover, a micro pump, a driving circuit board, and a pressure sensor. The valve plate is disposed between the base and the top cover. The micro pump is in the base. The pressure sensor is disposed on the driving circuit board. An inlet channel of the top cover and the pressure sensor are connected to a gas bag. The micro pump operates to inflate the gas bag to press the skin of a user. The pressure sensor detects a pressure change in the gas bag so as to detect the blood pressure of the user.

A fuel dispenser comprising fuel flow piping defining a flow path from a source of fuel toward a fueling nozzle. The fuel flow piping further has a filter manifold for mounting a fuel filter thereon. A plurality of fuel handling components are disposed along the fuel flow piping. A sensor device is mounted to the filter manifold, the sensor device having at least one sensor operative to detect a sensed condition related to the fuel dispenser. The sensor device further comprises electronics to transmit a signal related to the sensed condition.

An apparatus including: (a) a fluid material conduit in fluid communication with a source of a fluid material, wherein the fluid material comprises unexpanded, expandable polymeric microspheres; (b) a treatment zone in heat transfer communication with a source of heat and in fluid communication with the fluid material conduit, such that the fluid material is directly or indirectly contacted by heat within the treatment zone; and (c) a back pressure generator in fluid communication with the treatment zone, capable of increasing pressure in the treatment zone, which results in expansion of the expandable polymeric microspheres when the fluid material exits the treatment zone.

An ultra-low pressure monitoring system can include an embedded server comprising a base radio and memory. In some embodiments, the embedded server is communicatively coupled to a third-party database. The system can include a first monitoring device comprising a first ultra-low pressure sensor and a first radio communicatively coupled to the base radio. The embedded server can be remotely located with respect to the first monitoring device whereby the embedded server receives first pressure data from the first monitoring device.