Classification of Transducers. The first classification of Transducers is based on the physical effect engaged to convert the physical quantity to electrical quantity. This will make the measurement system very compact. When we need to measure the above physical quantities, we only need to use force sensors. •Electrical transducers •voltage, current, frequency. A measurement system consists of sensors, actuators, transducers and signal processing devices. Transducers can be classified on the basis of: Active and passive transducers. CLASSIFICATION & SELECTION OF TRANSDUCERS We have tabulated the class of transducers and some important measurands are mentioned. Open loop and Closed loop control system. B.H.Gardi College Of Engineering & Technology LVDT, strain gauge, thermocouple, and thermistor are some examples of analogue transducers. Submitted To:- NB: Transducer is also known as “Pick-up”. 1. The transducer is classified as the active and passive transducer. 4. Classification of Transducers: There are many principles on which a transducer can work like resistive, inductive, capacitive etc. 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 Transducers may be classified according to their application, method of energy conversion, nature of output signal, etc. I Inverse transducers converts electrical quantity in non electrical quantity. Passive Transducer– The transducer which requires the power from an external supply source is known as the passive transducer. Some transducer types like active transducer and passive transducers are based on whether a power source is required or not. Analoge & Digital transducers Classification of Transducers Analog and Digital Transducers In the case of analogue transducers, the input quantity is converted into an analogue output, which is … Based on the output electrical quantity to be produced. 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 . Variation in Inductance 3. Piezoelectric Effect a thermocouple) Pressure transducers (e.g. The self generated transducers don’t use the external power supply source. Primary and secondary type; Analog and digital type; Active and passive type Primary and secondary transducer Analog and digital transducers. 10. Analoge & Digital transducers 5.Transducers … Temperature transducers (e.g. So let’s check on classification of transducers. Primary & Secondary transducers 3.Active & Passive transducers 4. The capacitive, resistive and inductive transducers are the example of the passive transducer. PRESENTATION ON Classification of transducers The transducers can be classified as: I. Transducer Classification. These are also used in the systems which perform specific tasks, to communicate with the real world. 1. On the basis of transduction principle used. Voltage & Current - Hall effect transducer, Ionisation chamber, Photoemissive cell, Primary & Secondary transducers Therefore, an electrical device acts as a secondary transducer. Capacitance - Variable capacitance pressure gauge, Capacitor microphone, Dielectric gauge. In the case of analogue transducers, the input quantity is converted into an analogue output, which is a continuous function of time. There are a variety of transducer types like pressure transducer, piezoelectric transducer, ultrasonic transducer, temperature transducer, and so on. Primary and secondary transducer V. Transducers and inverse transducers. Here the measuring variable pressure is passed through bourdon tube. The instrumentation technologist to select the transducer most suitable for the measurand of choice. Some of the common methods of classifying transducers are given below. 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. APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. Follow via messages; Follow via email; Do not follow; written 4.4 years ago by Ramnath • 6.2k: modified 14 months ago by Abhishek Tiwari • 850: Follow via messages; Follow via email; Do not follow; mumbai university electronic instruments and measurements basics of sensors and transducers • 2.5k views. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Hall Effect 5. Analoge transducers converts input quantity into an analog output which is continous function of time. Looks like you’ve clipped this slide to already. • R, C, I component and its effects. Inductance - Magnetic circuit transducer, Reluctance pick-up, Differential transformer, The type of input, which can be any physical quantity, is generally determined in advance. We have already looked into transducers, inverse transducers are just the opposite of transducers in function. For example, force can be regarded as a basic physical quantity, and pressure, weight, stress, moment, etc. Powered by Discourse, best viewed with JavaScript enabled, What is control system? Variation in Resistance 2. Department Of Electrical Engineering So let’s check on classification of transducers. Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), Trillion Dollar Coach Book (Bill Campbell). These transducers are also called as pressure indicators, ma… The use of these elements and devices is not limited to measuring systems. The foremost consideration for the choice of a transducer is the input quantity it is going to measure and its operating range. A DC power supply or an audio frequency generator is used as an external power source. It is also a type of transducer classification which is provede help to understand about classification of transducer and selection criteria of transducer. III. Here bourdon tube acts as primary transducer and LVDT acts as secondary transducer. Bourdon converts the pressure into displacement by the movement of free end. However, a sharp distinction in the classification is difficult and often results in overlapping. 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. 3.Active & Passive transducers Classification of Transducer 3. 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. Such type of transducer develops theirs own… Photomultiplier tube. Based on the electrical phenomenon or parameter that may be changed due to the whole process. Classification of Transducers The Classification of Transducers is done in many ways. CLASSIFICATION OF TRANSDUCERS Transducers Active and passive Transducers Transducer and Inverse Transducer Analog and Digital Transducer Primary and secondary Transducer On the Basis of Transduction Form 5 6. The communication can be … This displacement is transferred to iron core of LVDT. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. What is Transducer and its Types of Transducer in Instrumentation and Measurement by Ashok Kuar Saini Hindi - Primary & Secondary transducers 3.Active & Passive transducers 4. Thermister; Resistance Temperature Transducer; Self Generated Transducers. eg: Resistive, Capacitive, Inductive. So they are not self generating type transducers. Electrical Transducers 5. Speed of Response: It is the rapidity with which the transducer responds to changes in the measured quantity. IV. Jaydeep Chandra (140040109009) Active Transducer. Before going to the classifications we have to check-out, what are transducers? Eddy current guage, Magneto striction gauge. Size: The transducer should have smallest possible size and shape with minimal weight and volume. Mechanical Transducers 1. Piezoelectric Transducer CLASSIFICATION OF ACTIVE TRANSDUCERS ACTIVE AND PASSIVE TRANSDUCERS • Passive Transducers : I. LVDT converts displacement to voltage. NB: Transducer is also known as “Pick-up”. Prepared By:- electrical-transducer Types of Electrical Transducer. 1.Based upon the transduction principle:- See our Privacy Policy and User Agreement for details. They generate their voltage or current signal. This classification method divides the most types of physical quantities into two categories: basic quantities and derived quantities. Resistance - Potentimeter devices, Resistance strain gauge, Pirani guage or hot wire meter, Resistance thermometer, Thermister, Resistance hygrometer, Photoconductive cell. Based on their application. See our User Agreement and Privacy Policy. These transducers produce the output signal in the … This transducer is also named as -self-generating transducer. • Transducers On The Basis of principle Used Active/Passive Primary/Secondary Analog/Digital Transducers/ Inverse Transducers Capacitive Inductive Resistive (2170913) Types of Transducer. On the other hand transducer that can’t work on the absence of external power supply are called ‘passive transducers’. Just think about an current coil moving in magnetic field which is an inverse transducer. Analoge & Digital transducers 5.Transducers & Inverse transducers. can be derived from the force. Classifications:-1.Based upon transduction principle used 2. Clipping is a handy way to collect important slides you want to go back to later. The speed of response of the transducer should be as high as practicable. 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. On the basis of transduction form it`s used, we can go further. eg: strain gauge, LVDT, Thermocouple. So Transducer can be categorized on the basis of four thoughts. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. eg: Moving coil, Piezoelectric crystal, Thermocouple, Photovoltaic cell. Self generating transducers - Thermocouple, Thermopile, Moving coil generator, Piezoelectric transducer, Photovoltaic. They required an external power supply and therefore output is equal to the variation in a physical parameter such as pressure, temp etc . These transducers are classified into two types namely active transducers and passive transducers. 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. Variable inductive transducer may be classified as follows Selecting Transducer 4. III. Asst Prof. Amit A Kulkarni Define a transducer and explain its classification. Now customize the name of a clipboard to store your clips. Transducers can be classified as: Active and Passive Transducers; Analog and Digital Transducers Based on the method of converting the non-electric signal into electric signal. Classification of Transducers • Transducers may be classified according to their application, method of energy conversion, nature of the output signal, and so on. Let us discuss the use of different types of transducers in practical applications. In electrical instrumentation, transducer is a device which coverts physical quantity into an electrical quantity. Transducers those which don’t require an auxilary power source to produce their output are known as ‘Active transducers’ or self generating type. A physical quantity may be measured by the use of a number of transducer. Pressure transducer is a special kind of sensor that alters the pressure forced into electrical signals. 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. The name of each class is keyed to the transduction mechanism, but its explanation is given along with the description of the transducer. They can be categorized as piezoelectric, thermoelectric, magnetorestrictive, … 5.Transducers & Inverse transducers, 1.Based upon the transduction principle:-. depending upon how they convert the input quantity into resistance, inductance, and capacitance respectively. Moreover, cross … Digital transducer converts input quantity into an electrical output is in the form of pulses However, the choice of a particular transducer that is selected for the purpose, depends upon the useful range of input quantity over which the transducer can be used. Active Transducer– The transducer which does not require the external power source is known as the active transducer. Active and passive transducers. eg: Glass scale, Metallic scale. This is the first type of classification of a transducer. Classification Of Transducer 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 . Classification of Transducers Passive Transducers. NB: Transducer is also known as “Pick-up”. 0. Variation in Capacitance 4. 2. Thermister. The operating range of the transducer may be a decisi… 1). Transducer Classification based on Applications. If you continue browsing the site, you agree to the use of cookies on this website. II. Measurement is an important subsystem in any major system, whether it may be a mechanical system or an electronic system. II. These transducers need external source of power for their operation. Classification of Transducers Analog and Digital Transducers. 1.Based upon transduction principle used INDUSTRIAL INSTRUMENT They are also known as the external power transducer. eg: Peizoelectrical crystal. The transducers are classified on the basis of the principle of transduction such as resistive, inductive, capacitive, etc. So let’s check on classification of transducers. Pressure detection circuit and function of pressure detector. a diaphragm) Displacement transducers (e.g. If you continue browsing the site, you agree to the use of cookies on this website. LVDT) Oscillator transducer; Flow transducers; Inductive Transducer 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 Classifications:-1.Based upon transduction principle used 2. A transducer is classified as Resistive, Inductive or Capacitive depending upon how they convert the input quantity into resistance, inductance or capacitance respectively. An example, is the change in resistance (physical quantity) of a copper element in proportion to the change in temperature.The following physical effects are generally used: 1. You can change your ad preferences anytime. Analog and digital transducers. Look at the above picture, it is easy to understand the concept with this picture. 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Known classification of transducer the active transducer active transducers and signal processing devices think about an current coil in... Inductance, and pressure, weight, stress, moment, etc most suitable the!