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A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.
A density meter (densimeter) is a device which measures the density of an object or material. Density is usually abbreviated as either ρ {\displaystyle \rho } or D {\displaystyle D} . Typically, density either has the units of k g / m 3 {\displaystyle kg/m^{3}} or l b / f t 3 {\displaystyle lb/ft^{3}} .
Intermediate Data Format (IDF) files are used interoperate between electronic design automation (EDA) software and solid modeling mechanical computer-aided design (CAD) software. The format was devised by David Kehmeier at the Mentor Graphics Corporation.
Ensuring x-ray films are within code-required density ranges and comparing relative material thicknesses in industrial radiography; Process control of density dot gain, dot area & ink trapping. Densitometer readings will be different for different types of printing process & substrates.
Paper production uses gravitic density meters to measure the amount of pulp currently being used in the process. Oil and gas use gravitic density meters to measure the amount of oil and gas in the system. This case exemplifies the versatility of gravitic density meters because oil and gas are lighter than water.
Measuring combination of an automatic refractometer and a density meter as widely used in the flavors and fragrances industry Today's laboratories do not only want to measure the refractive index of samples, but several additional parameters like density or viscosity to perform efficient quality control.
This in-line section of pipe calculates the percentage of dry solids, wet density or wet and dry mass flow units. When coupled with compatible volumetric flow meters and processing units, this system gives a true value for density and mass flow. [2] The DM3 is a bi-directional unit which allows media to flow continuously through either ends.
The mass flow meter does not measure the volume per unit time (e.g. cubic meters per second) passing through the device; it measures the mass per unit time (e.g. kilograms per second) flowing through the device. Volumetric flow rate is the mass flow rate divided by the fluid density. If the density is constant, then the relationship is simple.