Skip to main content

LVDT (Linear variable differential transformer or transducer) simple working explanation. By Yuvi - Study Point

Hey everyone, today we are going to learn about LVDT (Linear variable differential transformer or transducer).
So, without wasting any time lets get started.



  • LVDT'S are used to measure the displacement. It is similar to RVDT but LVDT employs soft or flexible iron core for displacement measurement and RVDT employs a cam-type core or a rotary ferromagnetic core.
  • LVDT is a common type of electromechanical transducer.
  • Applications of LVDT ~ power generation, aerospace, industrial automation, test, and measurement, subsea, etc.
  • It converts the linear displacement into an electrical signal through the principle of mutual induction.
  • LVDT'S main components are the transformer and the core.
  • It is basically an electromechanical sensor which I have told you which is used to convert mechanical motion or vibrations, more specifically a rectilinear motion into a variable electrical current, electric signals or voltage.
Now, let's see the three cases or conditions which occurs in LVDT.
  • If an external force is applied and the core remains in the null position without any displacement then the voltage induced in both the secondary windings is equal and the net output result is equal to 0. 
E1 - E2 = 0
  • And if an external force is applied and the core moves in the left side then the e.m.f induced in the secondary coil 1 is greater than the e.m.f induced in secondary coil 2.
E1 - E2 = (+) POSITIVE
  • And due to external force if the core moves in the right-hand side then the e.m.f induced in the secondary coil 2 is greater than the secondary coil 1. 
 E1 - E2 = (-)NEGATIVE

{Please go and check out my channel and this video. Because in this video I have explained the LVDT (Linear variable differential transformer) in simple or easiest way possible. }
{ And please go and check out the lecture video of mine which illustrates the difference between active and passive transducers and their explanations.}



Thank you!




Comments

Post a Comment

Popular posts from this blog

Impulse turbine simple explanation. By Yuvi - Study Point

Hey everyone, today we are going to understand about Impulse turbine. So, without wasting any time lets get started. In an impulse turbine, we are generating power by making the use of high-speed water jet impact. once, we have high-speed water jet, we can use its impact to rotate a turbine. In impulse turbine potential energy of the water is converted into kinetic energy by passing it through a nozzle. Impulse turbine is totally remain dipped in water. We can say that the impulse turbine uses Newton's second law of motion as it totally depends on two main factors i.e, the mass of water which was flowing into the turbine and change in the velocity of the flow coming into the turbine to that of going out of turbine after impact.                                 As with a considerable decrement in the velocity, the mass of water entering into the turbine is same as that of mass coming out of t...
Post a Comment
Read more

NBFM & WBFM (Narrow band frequency modulation & Wide band frequency modulation) simple explanation. By Yuvi - Study Point

Hey everyone, today we are going to learn about NBFM & WBFM (Narrowband frequency modulation & Wideband frequency modulation) in simple or easy way. So, without wasting any time lets get started. The information about NBFM & WBFM When the spectrum's efficiency is important or it is required then we use NBFM (Narrowband frequency modulation) is used.  But when better signal quality is required or when it is important then we use WBFM (Wideband frequency modulation). The term NBFM is used for those applications where the modulation index is less than or equal to 1. And the term WBFM is used for those applications where the modulation index is greater than or equal to 1. Now, let's see more difference between Narrow band frequency modulation(NBFM) and Wideband frequency modulation(WBFM). The term narrow-band and wide-band refer to the actual radio channel bandwidth. The purpose or advantage of using NBFM (Narrowband frequency modulation) The purpo...
2 comments
Read more

Ohm's law simple learning BY Yuvi - Study Point

Hey guys, have you ever heard about Ohm's law, ok so I will teach you in an easy way. So let's get started. It is the basic rule of electricity and it explains the relationship between voltage, electric current & resistance. Ohm's law states that the electric current which is flowing through a circuit or conductor is directly proportional to the voltage and inversely proportional to the resistance. In other words, if resistance is not changed then the electric current flowing through a conductor will increase with the increase in voltage. And if the voltage is not changed then the electric current which is flowing through a conductor decreases with the increase in resistance.    Ohm's law formulas, V = I * R R = V / I I = V / R Ohm's law states that Resistance (R) of the conductor is constant. [*Note = But research shows that the resistance is directly proportional to the length of the conductor and inversely proportional to the cross-sec...
Post a Comment
Read more