Variable Area Flow Meter – Application – Working Principle – Advantages

Flow Measurement, Instrumentation

Variable Area Flow Meters  Variable area flow meters are used to measure the volume flows of liquid and gases. Application of Variable Area Flow Meter – Volume flow measurements of Liquids and Gases Components –  Vertical Conical Measuring Tube Mobile Float It consist of vertical conical measuring tube which widens upwards and a specially formed …

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What are the different types of DC Motors and how to select DC motors for your application?

Electrical

The most common DC motors types are 1.The basic brushed DC motors 2.Brushless motor 3.Permanent Magnet motor Brushed DC motor In a brushed DC motor, the magnet acts as the stator.The armature is integrated onto the rotor and a commutator switches the current flow.Commutator function is to transfer current from fixpoint to the rotating shaft.Brush …

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Level Measurement – Ultrasonic Type Working Principle Application Advantages and Disadvantages

Instrumentation, Level Measurement

Ultrasonic Level Detectors Ultrasonic sound waves with frequencies of 1 to 5 megahertz can be used to detect liquid or solid levels. Ultrasonic are sound waves but are at higher frequencies that cannot be detected by the human ear. The most common kind of ultrasonic transducer consist of a piezoelectric crystal.When a voltage is applied to …

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Pressure Measurement – Manometers Working Principle – Vaious types of Manometers

Instrumentation, Pressure Measurement

Manometers Manometers are one of the oldest type of pressure measurement. Manometers can be used to measure gauge pressure,differential pressure and absolute pressure. Various types of Manometers 1.U tube Manometer 2.Well type or reservoir manometer 3.Inclined manometer 4.Float type manometer U tube Manometer. U tube is made of glass.The tube is filled with a fluid known …

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Instrumentation : Basics of pressure measurement

Instrumentation, Pressure Measurement

Pressure measurement  Pressure is an important process variable. Pressure is defined as force per unit area. Pressure = Force / Area Force can be represented as Pound force,Kilogram force,Newton,dyne Area can be represented as Square inches,Square feet,Suare Centimeter, Square Meters Common units of Pressure include: 1.Pounds per square inch (psi) 2.Newton/m2 (=Pa) : SI unit …

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Basics of Pressure Regulator (Pressure Reducing Valve – PRV)

Instrumentation, Pressure Measurement

Pressure regulatorSelf-Operated devices which work off the medium alonePressure reducing valve – PRV : Lowers inlet pressure to desired point How PRV works? Internal architecture of a Pressure regulator Basic Characteristics of a pressure regulator is standalone self actuating controllers. What to expect from a regulator?1.Accurate regulation2.Tight shutoff3.Fast response4.Minimum maintenance5.Low noise6.Low initial cost Advantages of …

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Types of Valve

Instrumentation, Valves

Valves are used for 1.Full flow of throttle :which is a wide range for valves use,because valves are designed in a way way to reduce pressure losses for fluids passing through theses valves,diaphragm valve is used with dangerous and toxic liquids. 2,Flow regulating: Sometimes we need to regulate flow by changing calve positions between fully …

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Working Principle of a Float operated Level Switch

Instrumentation, Level Measurement

In a float operated level switch the float rides in the process liquid surface precisely tracking liquid surface motion.Rising liquid level lift the float sliding the attraction slip up inside the enclosing to and into the magnetic field to actuate electrical or pneumatic switch. Subsequently falling liquid level lowers the flow drawing the attraction slip …

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What are the differences between circuit breaker and fuse ?

Electrical, whatis

The differences between circuit breakers and fuses. Both residential and industrial electronics circuits systems require some form of protection to prevent catastrophic failure circuit damage or loss of life due to excessive current brought on by a short circuit overload device failure or other unforeseen elements. The two most common forms of circuit protection are fuses and …

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