According to Merriam-Webster, hysteresis is the “lagging of a physical effect on a body behind its cause (as behind changed forces and conditions).” Thus, when outside forces act on an object, that object will either immediately spring back to its original state, or more likely, and it will somehow change or exhibit properties from previous deformations. …
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I almost can’t trace back when the Yokogawa YS1700 launched, but based on the YS1700 successor the Yokogawa YS170 was discontinued in 2008. Therefore we assume the Yokogawa YS1700 began since 2008. This new controller upgrades with several features, for instance, the new LCD, shorter body length, 1000 steps text Program and 400 modules of …
Convert Yokogawa YS1700 Text Program to Function Block Read More »
Comparison between Variable Area Flow Meter and Mass Flow Meter often compare of Volumetric Flow and Mass Flow Measurements. Advantages of Mass Flow Over Volumetric Flow Measurements Mass Flow meter is having widest Turndown Ratio, Fast Response Time, High Accuracy and also High Repeatability Mass Flow Rate independence to pressure and temperature changes Pressure and Temperature Compensation does not …
Variable Area Flow Meter vs Mass Flow Meter for Gas Flow Measurements Read More »
What is Magnetic Flow Meter A magnetic flow meter (mag meter, electromagnetic flowmeter) is a transducer that measures fluid flow by the voltage induced across the liquid by its flow through a magnetic field. A magnetic field is applied to the metering tube, which results in a potential difference proportional to the flow velocity perpendicular to the flux …
Vortex Flow Meter can be used for a wide range of fluids, i.e. liquids, gases and steam. They are to be seen as first choice, subject to verification to cover the requirements of a particular application. Vortex meters are essentially frequency meters, since they measure the frequency of vortices generated by a “bluff body” or …
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How to perform Gas Sampling using Digital Mass Flow Meter The Vögtlin red-y compact 2 meters is used as the heart of a reliable automatic in the analytical world, low-cost gas sample taking the device. Emission or environment measurements often demand periodic sampling of a fixed amount of gas and collect them in containers or sample bags. …
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All Vortex Flow Meters are systematically calibrated and adjusted, which means compare to a reference and adjust to reach the designed accuracy. To prove the uncertainty of the measurement, we need to prove the quality of the calibration. Calibration of all Vortex flow meter sizes from DN15 to 300 on the rig in the factory …
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What is Pressure Measurement? Pressure, flow, level, and temperature are the four common plant measurements. Of the four, the pressure is the most fundamental and common. The three remaining measurements can be inferred from pressure-flow (orifice plates, pitot tube, venturi), temperature (pressure thermometer), and level (hydrostatic ‘Head’ pressure). It can also infer density (pressure for …
Boiler drum level control is necessary to feed water into the boiler as steam is output into the header and to the associated process equipment. For a given volume of steam and blowdown leaving the steam drum, an equal amount of water should replace in the boiler. There are three main control options available for …
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Introduction There are several fundamental measurement techniques for flow meters, such as: Electromagnetic Flow Meters Thermal Mass Flow Meters Coriolis Mass Flow Meters Differential Pressure Flow Meters Vortex Flow Meters Position Displacement Flow Meters (PD Flow Meters) Turbine Flow Meters Variable Area Flow Meters Other than the ones mentioned above, there are some less known …
How Measurement and Control of Low Gas Flow Rates? Read More »