Linear variable differential transducer (LVDT). The linear variable differential transducer (LVDT) is a type of electrical transformer used for measuring.

Slides:

Advertisements

Similar presentations

Translational motion transducers

Advertisements

Magnetic effect of Electric current 1.Faraday’s Experiments 2.Faraday’s Laws of Electromagnetic Induction.

Sensors Bryson Cook James Wyler Hao Phan 1. Outline Optical Encoders: Theory and applications –Types of encoders –Fundamental Components –Quadrature –Errors.

Copyright © 2010 Pearson Education, Inc. Lecture Outline Chapter 23 Physics, 4 th Edition James S. Walker.

Pressure measurements. INTRODUCTION Absolute pressure = Pgage + Patm. Atmospheric pressure = 100 KP a =14.7 Psi =1 0.2 m H 2 o =760 mm H g =760 torr.

Today’s class By the end of this class, you’re expected to learn

SENSORS AND TRANSDUCERS

Consider a long solenoid of cross-sectional area A, with number of turns N, and of length l. The flux is The magnitude of B is given by: Therefore, The.

Storey: Electrical & Electronic Systems © Pearson Education Limited 2004 OHT 14.1 Inductance and Magnetic Fields  Introduction  Electromagnetism  Reluctance.

Differential Transformer

Sensors Chris Davidson Ari Kapusta Optical Encoders and Linear Variable Differential Transformers.

Electromagnetic Induction

Unit 27 Transformers. Objectives –After completing this chapter, the student should be able to: Describe how a transformer operates. Explain how transformers.

SENSORS MEETING THE NEEDS OF THE DAY  A device which converts energy or information in one form to another  In other words, a device which provides.

Electromagnetic Induction

Linear variable differential transducer (LVDT)

Magnetism. Earliest ideas Associated with naturally occurring magnetic materials (lodestone, magnetite) Characterized by “poles” - “north seeking” and.

Centre for Mechanical Technology and Automation Institute of Electronics Engineering and Telematics  TEMA  IEETA  Sensors.

POWER CIRCUIT & ELECTROMAGNETICS

1 Motion Sensors Displacement, velocity and acceleration.

It is sometimes difficult to find the polarity of an induced emf. The net magnetic field penetrating a coil of wire results from two factors.

9AEI It is defined as the change of position of a body with respect to a reference It may be Linear motion Rotational motion Displacement.

Magnetic Flux and Faraday’s Law of Induction

Chapter 29 Electromagnetic Induction and Faraday’s Law

Electromagnetic Induction. Current can be created in a wire by a magnetic field British scientist Michael Faraday and American scientist Joseph Henry.

The link between electricity & magnetism N S When a wire moves through a magnetic field a voltage is produced N Moving a magnet moves through a coil of.

3/17/2014 PHYS , Dr. Andrew Brandt 1 PHYS 1442 – Section 004 Lecture #15 Monday March 17, 2014 Dr. Andrew Brandt Chapter 21 Generator Transformer.

Transformers A transformer is a device for increasing or decreasing

Mutual Inductance As in a transformer, changing the current in the primary coil causes an induced voltage in the secondary coil i.e. mutual induction has.

Displacement and Motion Measurement

CH Review Changing the magnetic flux in a coil induces an emf around the coil. (As long as the coil is connected in a complete circuit, a current.

Chapter 21.  Electromagnetic induction is the process of generating a current by moving an electrical conductor relative to a magnetic field.  This.

22.3 Inductance pp Mr. Richter. Agenda  Warm Up  Notes:  Mutual Inductance  Transformers.

1 ELECTRICAL TECHNOLOGY EET 103/4 Define and analyze the principle of transformer, its parameters and structure. Describe and analyze Ideal transformer,

POWER CIRCUIT & ELECTROMAGNETICS EET 221 Transformer.

 V s /V p = N s /N p  I p V p = I s V s  I p /I s = V s /V p = N s /N p  V s = (N s /N p )V p  I s = (N p /N s )I p  P = VI; I = P/V (I.

Capacitive transducers(cont’d):- The capacitance of this unit is proportional to the amount of area on the fixed plate that is convered, that is, "'shaded"

Displacement, Location or Position Sensor Muhajir Ab. Rahim School of Mechatronic Engineering, KUKUM.

1 Eeng 224 Chapter 13 Transformer Applications Huseyin Bilgekul Eeng224 Circuit Theory II Department of Electrical and Electronic Engineering Eastern Mediterranean.

Copyright © 2009 Pearson Education, Inc. Chapter 30 Inductance, Electromagnetic Oscillations, and AC Circuits HW8: Chapter 28:18,31,40 Chapter 29:3, 30,48.

Chapter 21 Magnetic Induction and Chapter 22.9: Transformers.

Construction and working of TRANSFORMERs

Transformer Objectives 1.Describe how a transformer works by watching a video clip. 2.Apply the transformer equations by solving problems.

1 ELECTRICAL TECHNOLOGY ERT 105/3 Define and analyze the principle of transformer, its parameters and structure. Describe and analyze Ideal transformer,

TRANSDUCERS PRESENTATION BY: ELECTRICAL ENGINEERING DEPARTMENT.

Electric Pressure Transducer

TRANSFORMER A transformer is a static device.

14.1 Introduction Earlier we noted that capacitors store energy by producing an electric field within a piece of dielectric material Inductors also store.

& 13 transformers.

SVMIT ELECTRICAL Prepared By : - Rohan Kapadia (016)

Engineering Measurements

There are three parts of a transformer

Mechatronics is as old as the history of modern engineering practice, But at the same time it is as new as few decades.

Measurement of Pressure

Principles & Applications

Transformer -Types & Applications

Displacement, velocity and acceleration

Electric Currents from Magnetism

What is a transformer? iron core secondary coil primary coil

Transformers A transformer changes the high voltage from the main power lines to the 120 volts your appliances use.

Electromagnetic Induction & Transformers

Electro-Magnetic Induction

ELECTROMAGNETISM.

LVDT You’re expected to learn

L-11 ELECTROMAGNETISM ELE 1001: Basic Electrical Technology

LVDT The LVDT's primary winding, P, is energized by a constant amplitude AC source. The magnetic flux thus developed is coupled by the core to the adjacent.

Unit-1 Transformer.

Presentation transcript:

Linear variable differential transducer (LVDT)

The linear variable differential transducer (LVDT) is a type of electrical transformer used for measuring linear displacement. The transformer has three solenoidal coils placed end-to-end around a tube. The center coil is the primary, and the two outer coils are the secondary. A cylindrical ferromagnetic core, attached to the object whose position is to be measured, slides along the axis of the tube.transformersolenoidal

As the core moves, these mutual inductances change, causing the voltages induced in the secondaries to change. The coils are connected in reverse series, so that the output voltage is the difference (hence "differential") between the two secondary voltages. When the core is in its central position, equidistant between the two secondaries, equal but opposite voltages are induced in these two coils, so the output voltage is zero.

When the core is displaced in one direction, the voltage in one coil increases as the other decreases, causing the output voltage to increase from zero to a maximum. This voltage is in phase with the primary voltage. When the core moves in the other direction, the output voltage also increases from zero to a maximum, but its phase is opposite to that of the primary. The magnitude of the output voltage is proportional to the distance moved by the core (up to its limit of travel), which is why the device is described as "linear". The phase of the voltage indicates the direction of the displacement.phase