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  • A Standard for Users and Manufacturers of Thermal Dispersion Mass Flow Meters
    Thermal dispersion mass flowmeters comprise a family of instruments for the measurement of the total mass flow rate of a fluid, primarily gases, flowing through closed conduits.
  • Fine Powder Design - Flow Rate Control (.pdf)
    Engineers must often control the mass flow rate from a handling system by using a volumetric feed device. This poses several problems. Accurate control requires three conditions: consistent bulk density, geometries that are not flow rate limited, and orifice sizes greater than cohesive hang-up
  • Introducing a New Paradigm for Thermal Dispersion Mass Flow
    groundbreaking innovations in sensor design. That, along with a comprehensive algorithm facilitated by current hyper-fast microprocessors, has created a new paradigm for the measurement of the mass flow rate of gases by means of thermal dispersion technology.
  • Advances in Thermal Dispersion: Mass Flow Meter Accuracy (.pdf)
    to generate a. signal directly proportional to the temperature differential and mass flow rate. Over the years, Thermal type flow sensors have. been utilized across a very wide spectrum of applications and feature an assortment of performance limits. Modern Thermal flow sensor designs have greatly evolved
  • Advances in Thermal Dispersion Mass Flow Meter Accuracy (.pdf)
    to generate a signal directly proportional to the temperature differential and mass flow rate. Over the years, Thermal type flow sensors have been utilized across a very wide spectrum of applications and feature an assortment of performance limits. Modern Thermal flow sensor designs have greatly evolved
  • Mass Flow Meters
    (R) mass flow meter line uses the science of particle acceleration and its resultant forces to measure flow rate and total weight at accuracies of +/- 0.5%. Space efficiency and overall reliability make Multicor (R) an ideal choice for feeding, measuring and batching applications involving
  • Principle of Mass Flow Instruments: Measuring Unit of Flow Rate
    A mass flow meter measures the mass flow irrespective of pressure and temperature. When representing mass by the flow, it is necessary to use units such as g/min and kg/min which are different from the familiar units used for general fluid measurement. Therefore, it is common to use volume fl ow
  • Choked flow doesn't need theHeimlich maneuver
    Manipulating the principles of choked flow can simplify valve design. Flow rate versus upstream pressure for a 0.005-in.-diameter orifice. When upstream pressure is lower than 27.84 psia, the curve is no longer perfectly linear. Most mass-flow controllers are thermal based. That is, they use
  • Application Note: Quantified Leak Rate Using Mass Flow
    Production and test engineers often know the leak rate of product in bubbles per minute, but do not have an accurate way to convert bubbles to more universal ? ow numbers such as cubic centimeters per minute.
  • Thermal Mass Flow Meter Improves Refinery Flare Gas Monitoring Accuracy
    toxic gases. This gas mixture led them to conclude that mass (rather than volumetric) flow rate was the most important parameter to consider in the incineration process and to assist in plant's mass balance calculation. In the header lines, the variable flow rate ranged from just 0.5 to 150 SCFM
  • Mass Flow Theory
    Products frequently need to be evaluated for correct ?ow rate to ensure the passage of air through devices being tested.
  • Application Note: Simultaneous Recording of Flow Rate and Density/Concentration for the Food and Beverage Industry
    The general objective when mixing different components is to achieve a particular concentration in the overall mixture. This is relatively straightforward to achieve by means of volumetric, gravimetric or simple mass flow measurements if the individual components have stable concentrations.
  • Techical Article: Measurement of Low Flow at High Pressure
    available to measure this low rate of flow with such high pressure to obtain mass flow.
  • Natural Gas in Venezuela
    Hoffer Flow Controls has recently supplied two computerized natural gas turbine flow measuring systems to Venezuela's gas industry. These systems accurately measure "mass" flow rate and total. Venezuela has enormous gas resources and measuring it accurately is critical because of its value. In one
  • Designing Heat Meters Using PIC16F9XX Microcontrollers
    TB1092 Designing Heat Meters using PIC16F9XX Microcontrollers Water meters output in three forms: cubic feet, gallons Author: Rodger Richey and Ezana Haile or cubic meters. We need to calculate the mass flow Microchip Technology Inc. rate in terms of kilograms per second for use in our heat
  • Materials Engineering: Flow control: A novel use for porous metal
    . During orbits they handle orbit trim maneuvers, control spin, and maintain three-axis stability of the probe. A static-flow-control device feeds the mission-critical thrusters a discrete volume of compressed monopropellant hydrazine at a precise flow rate and time. This so-called flow restrictor