Search Results for: flowmeter
- Interview Questions
Field instrumentation interview Questions and answer
What are the different process variables? Flow. Pressure. Temperature. Level. Quality i.e. % O2, CO2, pH etc Flow, pressure, temperature…
Read More » - Control Valve
Different Problems in control valve – cavitation, flashing
There are different problems associated with the control valve which affects the flow control. High-pressure drop: The control valve is…
Read More » - Flow Measurement
Overview of flow measurement.
Introduction The ability to measure flow rate is another important process measurement. There are four different classes of flow measurement…
Read More » - Flow Measurement
What is Laser Doppler anemometer
Introduction The Doppler effect is a method to measure linear velocity. When a narrow laser beam (or radio beam or…
Read More » - Flow Measurement
What is Cavitation and Flashing?
Cavitation and flashing are two main kinds of noise in flowmeters and in control valves. Cavitation: When the decreased…
Read More » - Flow Measurement
Ultrasonic Flow Measurement
Introduction There are two types of ultrasonic flow measurement: – Transit time measurement – Doppler effect The fundamental difference is…
Read More » - Instrumentation
Different methods of Density Measurement
Introduction Density is defined as the mass per unit volume. Specific gravity is a unitless measurement. It is the ratio…
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What is a Rotameter ?
Introduction A rotameter measures the flow of liquids, gases and steam by using a float inside a conical tube. The…
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Square root extractor for DP flow measurement
Why use square root extractor for DP transmitter? The DP flowmeters measure the differential pressure across the constrictions made in…
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Rotameter basics, variable area flow meter
Rotameter is a variable area flow meter, works for measuring the flow of low viscous fluid at high velocity. A…
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