Define a transducer and explain its classification. Some transducer types like active transducer and passive transducers are based on whether a power source is required or not. Classification of Electrical Transducers Thus we can say that transducers are classified • As active and passive transducer • According to transduction principle • As analog and digital transducer • As primary and secondary transducer • As transducer and inverse transducer Classification of Electrical Transducers a thermocouple) Pressure transducers (e.g. Active Transducer– The transducer which does not require the external power source is known as the active transducer. Classification of Transducers Analog and Digital Transducers. Size: The transducer should have smallest possible size and shape with minimal weight and volume. Now customize the name of a clipboard to store your clips. They can be categorized as piezoelectric, thermoelectric, magnetorestrictive, … Analoge & Digital transducers 5.Transducers … eg: Moving coil, Piezoelectric crystal, Thermocouple, Photovoltaic cell. Thermister; Resistance Temperature Transducer; Self Generated Transducers. APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. Just think about an current coil moving in magnetic field which is an inverse transducer. Selecting Transducer 4. •Electrical transducers •voltage, current, frequency. 3.Active & Passive transducers So Transducer can be categorized on the basis of four thoughts. Transducers those which don’t require an auxilary power source to produce their output are known as ‘Active transducers’ or self generating type. 1. can be derived from the force. LVDT, strain gauge, thermocouple, and thermistor are some examples of analogue transducers. Transducers can be classified on the basis of: Active and passive transducers. Photomultiplier tube. There are different types of transducers because there are different kinds of physical parameters we should measure and each of them can used in distinct purpose . III. Types of Transducer. Based on the output electrical quantity to be produced. eg: strain gauge, LVDT, Thermocouple. So let’s check on classification of transducers. INDUSTRIAL INSTRUMENT Variation in Inductance 3. Variation in Capacitance 4. Classifications:-1.Based upon transduction principle used 2. They generate their voltage or current signal. These transducers produce the output signal in the … Primary & Secondary transducers 3.Active & Passive transducers 4. So they are not self generating type transducers. This classification method divides the most types of physical quantities into two categories: basic quantities and derived quantities. This will make the measurement system very compact. On the basis of transduction form it`s used, we can go further. • Transducers On The Basis of principle Used Active/Passive Primary/Secondary Analog/Digital Transducers/ Inverse Transducers Capacitive Inductive Resistive • R, C, I component and its effects. Classification of Transducers • Transducers may be classified according to their application, method of energy conversion, nature of the output signal, and so on. 1. Analoge transducers converts input quantity into an analog output which is continous function of time. Some of the criteria for the classification are based on their area of application, Method of energy conversion, Nature of output signal, According to Electrical principles involved, Electrical parameter used, principle of operation, & Typical applications. Digital transducer converts input quantity into an electrical output is in the form of pulses Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. depending upon how they convert the input quantity into resistance, inductance, and capacitance respectively. Classification of Transducers Analog and Digital Transducers In the case of analogue transducers, the input quantity is converted into an analogue output, which is … The self generated transducers don’t use the external power supply source. Clipping is a handy way to collect important slides you want to go back to later. The first classification of Transducers is based on the physical effect engaged to convert the physical quantity to electrical quantity. Variation in Resistance 2. LVDT) Oscillator transducer; Flow transducers; Inductive Transducer PDF | On Dec 6, 2017, G R Sinha published Introduction and Classification of Sensors | Find, read and cite all the research you need on ResearchGate Open loop and Closed loop control system. Analoge & Digital transducers 5.Transducers & Inverse transducers. Classification of transducers The transducers can be classified as: I. Introduction • A Sensor is a device that measures a physical quantity and converts it into a signal which can be read by an observer or by an instrument. Electrical Transducers 5. What is Transducer and its Types of Transducer in Instrumentation and Measurement by Ashok Kuar Saini Hindi - Pressure detection circuit and function of pressure detector. Temperature transducers (e.g. A physical quantity may be measured by the use of a number of transducer. Primary and secondary transducer Analog and digital transducers. Inductance - Magnetic circuit transducer, Reluctance pick-up, Differential transformer, So let’s check on classification of transducers. electrical-transducer Types of Electrical Transducer. These transducers need external source of power for their operation. Primary & Secondary transducers The foremost consideration for the choice of a transducer is the input quantity it is going to measure and its operating range. The transducer is classified as the active and passive transducer. There are some classifications of transducer which is given below, Primary transducer: The primary transducer is also known as detector or sensor.It senses a physical parameter such as pressure, humidity, temperature etc and converts it into suitable physical parameter which is readable. They required an external power supply and therefore output is equal to the variation in a physical parameter such as pressure, temp etc . 4. A DC power supply or an audio frequency generator is used as an external power source. Based on their application. Transducers may be classified according to their application, method of energy conversion, nature of output signal, etc. On the basis of transduction principle used. Primary and secondary transducer V. Transducers and inverse transducers. The instrumentation technologist to select the transducer most suitable for the measurand of choice. Classification of Transducers: There are many principles on which a transducer can work like resistive, inductive, capacitive etc. Jaydeep Chandra (140040109009) For example, in pressure measurement, as shown in the above figure, Bourdon’s tube acts as a primary transducer which converts pressure into displacement and LVDT acts as a secondary transducer which converts this displacement into an equivalent quantity of electrical signal. Variable Inductance Transducer | Classification Of Variable Inductance Transducer These are based on a change in the magnetic characteristic of an electrical circuit in response to a measurand which may be displacement, velocity, acceleration etc. Analoge & Digital transducers Capacitance - Variable capacitance pressure gauge, Capacitor microphone, Dielectric gauge. You can change your ad preferences anytime. Classification of Transducer 3. Looks like you’ve clipped this slide to already. There are of many different types of transducer, they can be classified based on various criteria as: Types of Transducer based on Quantity to be Measured. Speed of Response: It is the rapidity with which the transducer responds to changes in the measured quantity. This displacement is transferred to iron core of LVDT. Classification of transducer: The transducer can be classified as, Primary transducer; The primary transducer is also known as detector or sensor.It senses a physical parameter such as pressure, humidity, temperature etc and converts it into suitable physical parameter which is readable. Department Of Electrical Engineering Eddy current guage, Magneto striction gauge. A transducer is classified as Resistive, Inductive or Capacitive depending upon how they convert the input quantity into resistance, inductance or capacitance respectively. Bourdon converts the pressure into displacement by the movement of free end. Voltage & Current - Hall effect transducer, Ionisation chamber, Photoemissive cell, Transducer Classification. The use of these elements and devices is not limited to measuring systems. Pressure transducer is a special kind of sensor that alters the pressure forced into electrical signals. So let’s check on classification of transducers. Some of the common methods of classifying transducers are given below. There are a variety of transducer types like pressure transducer, piezoelectric transducer, ultrasonic transducer, temperature transducer, and so on. Resistance - Potentimeter devices, Resistance strain gauge, Pirani guage or hot wire meter, Resistance thermometer, Thermister, Resistance hygrometer, Photoconductive cell. Classification of Transducers. When we need to measure the above physical quantities, we only need to use force sensors. In the case of analogue transducers, the input quantity is converted into an analogue output, which is a continuous function of time. NB: Transducer is also known as “Pick-up”. Classification of Transducers The Classification of Transducers is done in many ways. For example, force can be regarded as a basic physical quantity, and pressure, weight, stress, moment, etc. Check here. The speed of response of the transducer should be as high as practicable. Piezoelectric Transducer CLASSIFICATION OF ACTIVE TRANSDUCERS ACTIVE AND PASSIVE TRANSDUCERS • Passive Transducers : I. (2170913) However, a sharp distinction in the classification is difficult and often results in overlapping. Measurement is an important subsystem in any major system, whether it may be a mechanical system or an electronic system. Thermister. NB: Transducer is also known as “Pick-up”. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Force can be regarded as a basic physical quantity into resistance, inductance, and to provide you with advertising..., Capacitor microphone, Dielectric gauge, force can be classified according to their application, of... Criteria of transducer classification which is continous function of time for details,,... Is also known classification of transducer the external power supply and Therefore output is in classification. 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