UNIT 10 INTRODUCTION TO TRANSDUCERS Transducers and Sensors AND SENSORS Structure 10.1 Introduction Objectives 10.2 Active and Passive Sensors 10.3 Basic Requirements of a Sensor/Transducer 10.4 Discrete Event Sensors 10.4.1 Mechanical Limit Switches 10.4.2 Proximity Limit Sensors 10.4.3 Photoelectric Sensors 10.4.4 Fluid Flow Switch 10.5 Transducers 10.5.1 Position Transducers … Optical Encoder (1) The optical encoder uses an opaque disk that has one or more circular tracks, with … This page contains Transducer Seminar and PPT … No public clipboards found for this slide. Download MOCT seminar report and PPT to learn more. There are various types of transducers depending upon the change in property or the energy they bring about to measure specified physical quantities. This ppt consists of an easy way to represent the basic idea of transducer, its types, constructional details, applications, advantages & disadvantages. A transducer uses many effects to produce such conversion. The following are the advantages of converting the physical quantity into an electrical signal. When we squeeze this piezoelectric material or apply any force or pressure, the transducer converts this energy into voltage. The attenuation and amplification of the electrical signals a… Transducers The Linear Variable Differential Transformer (lvdt) Is A Type Of Electrical PPT Presentation Summary : The Linear Variable Differential Transformer (LVDT) is a type of electrical transformer used for measuring linear (i.e. When the transducer converts an electrical signal into another form of energy, such as sound (which, incidentally, is a pressure field), light, mechanical movement, it is called an actuator. A device which converts a physical quantity into the proportional electrical signal is called a transducer. The magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. ELECTRICAL TRANSDUCERS The electrical transducers is one which converts the non- electrical quantity into the equivalent electrical quantity. Non-electrical quantity such as force, displacement, stress, temperature. Electrical quantity such as current, voltage 4. Hence it converts any quantity to be measured into a usable electrical signal. ELECTRICAL TRANSDUCER  The electrical transducers are one which converts the non- electrical quantity into equivalent electrical quantity. However we will pay little attention to them in this course. Looks like you’ve clipped this slide to already. This voltageis … This physical quantity which is to be measured can be pressure, level, temperature, displacement etc. Many of the transducers used in everyday life operate in both directions, such as the speakerphone on certain intercoms. : Information signal is analog signal and, analog signal (through discrete process) and less, A transducer is usually required to convert the output of a source into an.  RVDT is an inductive type passive transducer. Sensors and Transducers Characteristic Transducers converts the form of energy A microphone coverts sound energy into electrical energy A speaker converts electrical ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 5ed5b2-ZmZlY These types of transducers are also known as pressure transmitters. See our User Agreement and Privacy Policy.  It is also known as Rotary Variable Differential Transducer. • A transducer is a device that convert one form of energy to other form. A transducer is a device which transforms a non-electrical physical quantity (i.e. The circuit o/p can be directly adjusted against the input value. • Operate on principle that when light strikes special combination of materials then following may result.  It converts rotary or angular displacement into electrical voltage. An actuator is a device that actuates or moves something. Actuators are important in instrumentation. 1. temperature, sound or light) into an electrical signal (i.e. The input given to the electrical transducers can be in the form of the displacement, strain, velocity, temperature, flow etc and the output obtained from them can be in the form of current, voltage and change in resistance, inductance and capacitance. • In other word it is a device that is capable of converting the physical quantity into a proportional electrical The transducers that convert the mechanical input signals of the physical quantity into electrical output signals are called as electrical transducers. electrical signal that is suitable for transmission. It converts the measurand to a usable electrical signal. Working of Resistive Transducer . For the measurement of object displacement, one plate of the capacitance transducer is kept fixed, while the other plate is connected to the object. The transducers convert the physical forces into an electrical signal which can easily be handled and transmitted for measurement. translational) displacement. This uses the concept of change of capacitance by a change in overlapping area and distance between the capacitor plates. Magnetostrictive Transducers Ch i i Magnetostrictive materials transduce or convert magnetic energy Characteristics: to mechanical energy and vice versa. PowerPoint slide on Peizoelectric Transducer compiled by Narendra Kumar. A ppt on Magneto Optic Current Transducer. PowerPoint slide on Digital Transducers compiled by Jandeep. This preview shows page 1 - 8 out of 34 pages. If a magnetostrictive material is magnetized, it strains.Conversely, if an external force produce a strain in a magnetostrictive material thean external force produce a strain in a magnetostrictive material, the The piezoelectricmaterial is one kind of transducers. 44 4-20 mA Output Pressure Transducers. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. MAHSA University - Faculty of Engineering 7 Department of Electrical and Electronics Engineering A transducer is usually required to convert the output of a source into an electrical signal that is suitable for transmission. An actuator uses energy to provide motion. electrical/ electronic/ electro-mechanical device that converts one form of energy to another is called a Transducer A ppt on Magneto Optic Current Transducer. A transducer is a device which transforms a non-electrical physical quantity (i.e. OMEGA’s PX2760 Series barometric pressure transducers use a capacitive sensor that has excellent thermal stability and low hysteresis. The major types of resistive transducer include potentiometers, resistive position transducers, resistive pressure transducers, thermistors, strain gauges, and LDR. The signal is processed through a custom ASIC, ensuring long-term reliability and accuracy. A piezoelectric transducer(also known as a piezoelectric sensor) is a device that uses the piezoelectric effect to measure changes in acceleration, pressure, strain, temperature or force by converting this energy into an electrical charge. 1. The primary transducer converts the physical quantities to a mechanical signal whereas the secondary transducer converts to an electrical signal directly. • By proper interruption of the light signal due to motion input, the electrical signal produced can be related to the input. • Antenna: is the most basic transducer and can be made from a simple piece of wire. Types of Transducers. Let use see these in details. voltage, current, capacity) In other word it is a device that is capable of converting the physical quantity into a proportional electrical quantity such as voltage or current. Now customize the name of a clipboard to store your clips.  Non-electrical quantity such as force, displacement, stress, temperature. They allow the use of feedback at the source of the measurement. Download MOCT ppt for seminar in electrical engineering. Transducer Seminar and PPT with PDF Report: In the direct method any physical quantity like duration, mass, etc are calculated directly by some instruments like the measuring tape, weighing scale etc. 5. There are mainly three types of electrical pressure transducers – inductive, resistive, and capacitive. The magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. The internationally accepted standard for electrical transducers is IEC 60668, titled "Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital signals". Department of Electrical and Electronics Engineering, Department of Electrical and Electronics Engineering. SAURABH KUMAR Therefore, directly it provides the parameter’s valve to … The discharges of electrons vary the property of the photosensitive element. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. JHANWAR. What are Electrical Transducers? Eg: Telephone, facsimile, radio, satellite. Download MOCT seminar report and PPT to learn more. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. temperature, sound or light) into an electrical signal (i.e. A transducer can be anything that converts one form of energy to another. Download MOCT ppt for seminar in electrical engineering. In this type of inductive transducer, a simple single coil is used as the transducer. The output can be measured easily and it is calibrated against the input You can change your ad preferences anytime. The inductive type consists of a Linear Voltage Differential Transformer (LVDT) where core is positioned by the pressure through a diaphragm or a bellows element as shown in the figure below.  Electrical quantity such as current, voltage. A SEMINAR The photoelectric transducer uses a photosensitive element, which ejects the electrons when the beam of light absorbs through it. Which of the previously mentioned examples is an actuator? Chapter1_Noise Part 2.ppt - Department of Electrical and Electronics Engineering COMMUNICATION ENGINEERING SYSTEM Chapter 1 Introduction to. PRESENTED BY: Therefore, an actuator is a specific type of a transducer. The capacitor transducers are used for the measurement of linear and angular displacement. The electrostatic and piezoelectric transducer belong to the group of electrical transducers. Course Hero is not sponsored or endorsed by any college or university. An electrical transducer is a device which is capable of converting physical quanties into a proportional electrical quantity such as voltage or electric current. When the mechanical element whose displacement is to be calculated is moved, then it will change the flux path’s permeance which is generated from the circuit. susceptible to electrical noise as millivolt transducers and can therefore be used in much more industrial environments. ON TRANSDUCER It modifies the inductance of the circuitas well as the equivalent output. The electrical signal produced may be a voltage, current or frequency. The transducers used for the measurement systems are broadly classified into following categories: mechanical and electrical. See our Privacy Policy and User Agreement for details. But if the physical force is converted into an electrical signal, then their value is easily measured with the help of the meter. The process of transforming signal from one …  It measures force in terms of displacement of ferromagnetic core of a transformer. If you continue browsing the site, you agree to the use of cookies on this website. Quantum Computation and Logic_ How Quantum Computers Have Inspired Logical Investigations ( PDFDrive, Overcurrent protection and coordination.pptx, Unit 1 Beginning of science and technology .pdf, Marking Scheme MOD004282 Instrumentation and Me.docx, Unit 4 - Transducer, Sensor and Actuator.pdf, Unit 1 - Overview of Instrumentation measurement.pdf. An electric motor is a transducer for conversion of electricity into mechanical energy or motion. OPTO-ELECTRICAL TRANSDUCER • Convert light beam into an electrical signal. voltage, current, capacity…) 5 Where are they used and what for? Clipping is a handy way to collect important slides you want to go back to later. 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