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  • MEMS Pressure Sensors - Pressure Measurement Types
    . Several factors determine the pressure drop that occurs in fluid flow applications including laminar versus turbulent flow, the flow velocity, kinematic viscosity and Reynolds number of the fluid, internal roughness of the inside of the pipe as well as its diameter, length and form factor. Orifice plates
  • Selection of the Right Pressure Sensor
    . Differential pressure is the difference between. flow. An internal restriction to the flow. any two process pressures p1 and p2. channel such as a laminar flow element or. Therefore, differential pressure sensors must. an orifice plate generates a minimal pressure. offer two separate pressure ports
  • Differential Pressure Meters
    Differential pressure meters (DP) include orifice plates, venturi tubes, flow nozzles, cone types, Pitot tubes, target meters, elbow tap meters and rotameters. The basic operating principle of differential pressure flowmeters is that the pressure drop across the meter is proportional to the square
  • An Analytical and Experimental Study of a High Pressure Single Piston Pump for Gasoline Direct Injection (GDi) Engine Applications (.pdf)
    engine cycle. These benefits, along with improved fuel atomization due. In this paper, the fluid flow characteristics in a high-. to high injection pressures, can be employed to reduce. pressure single-piston pump for use in GDi engines are. wall wetting, accelerate catalyst light-off and decrease
  • Medical Device Link . Dispensing systems for miniaturized diagnostics The requirements of miniaturized assays and other advanced diagnostics pose technical challenges for the development of reagent dispensing systems.
    a solenoid valve. Piezoelectric valves can produce drop sizes in the range of 100 1000 pl, again with practical valve-opening frequencies up to about 500 Hz. Some success has been achieved in creating a drop-on-demand piezoelectric-valve system, but doing so has required the use of a pressure control
  • How to Specify Liquid Flowmeters
    . tube uses the differential. While all flowmeters can make. pressure generated by fluid. It is often quoted that DP cells. use of the latest technology, the. impacting the open end of a. with orifice plates are the most. basic techniques are fairly well. tube facing the direction of flow,. popular
  • Flow Measurement
    devices are there to choose from? There are types that create an obstruction in the pipe and measure the differential pressure across this obstruction. This includes the age-old orifice plate and venturi meter. Does your customer really want to pay for this pressure drop for the life
  • Medical Device Link .
    air and gas valves designed with an orifice up to 1.9 mm that the company claims can outperform many larger solenoid valves. The positive impact of a much larger orifice and corresponding higher flow rate translates to an advantageous drop in the differential pressure that a pump must work against

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