Such type of transducer develops theirs own… Variation in Inductance 3. Based on the method of converting the non-electric signal into electric signal. Variation in Resistance 2. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. A physical quantity may be measured by the use of a number of transducer. Pressure detection circuit and function of pressure detector. Therefore, an electrical device acts as a secondary transducer. eg: strain gauge, LVDT, Thermocouple. Photomultiplier tube. Active Transducer– The transducer which does not require the external power source is known as the active transducer. This will make the measurement system very compact. The transducer is classified as the active and passive transducer. 4. Piezoelectric Transducer CLASSIFICATION OF ACTIVE TRANSDUCERS ACTIVE AND PASSIVE TRANSDUCERS • Passive Transducers : I. Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), Trillion Dollar Coach Book (Bill Campbell). 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. Variable inductive transducer may be classified as follows It is also a type of transducer classification which is provede help to understand about classification of transducer and selection criteria of transducer. Just think about an current coil moving in magnetic field which is an inverse transducer. They generate their voltage or current signal. A DC power supply or an audio frequency generator is used as an external power source. The instrumentation technologist to select the transducer most suitable for the measurand of choice. 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. You can change your ad preferences anytime. Primary and secondary type; Analog and digital type; Active and passive type Based on the output electrical quantity to be produced. Classifications:-1.Based upon transduction principle used 2. (2170913) 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. Based on their application. 1.Based upon the transduction principle:- If you continue browsing the site, you agree to the use of cookies on this website. Variation in Capacitance 4. What is Transducer and its Types of Transducer in Instrumentation and Measurement by Ashok Kuar Saini Hindi - Voltage & Current - Hall effect transducer, Ionisation chamber, Photoemissive cell, The operating range of the transducer may be a decisi… Thermister. Temperature transducers (e.g. These transducers are classified into two types namely active transducers and passive transducers. On the basis of transduction form it`s used, we can go further. CLASSIFICATION & SELECTION OF TRANSDUCERS We have tabulated the class of transducers and some important measurands are mentioned. Open loop and Closed loop control system. Define a transducer and explain its classification. Looks like you’ve clipped this slide to already. Classification of Transducers The Classification of Transducers is done in many ways. Based on the electrical phenomenon or parameter that may be changed due to the whole process. Electrical Transducers 5. The self generated transducers don’t use the external power supply source. 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. Look at the above picture, it is easy to understand the concept with this picture. The speed of response of the transducer should be as high as practicable. Resistance - Potentimeter devices, Resistance strain gauge, Pirani guage or hot wire meter, Resistance thermometer, Thermister, Resistance hygrometer, Photoconductive cell. Capacitance - Variable capacitance pressure gauge, Capacitor microphone, Dielectric gauge. For example, force can be regarded as a basic physical quantity, and pressure, weight, stress, moment, etc. The type of input, which can be any physical quantity, is generally determined in advance. Primary and secondary transducer V. Transducers and inverse transducers. eg: Moving coil, Piezoelectric crystal, Thermocouple, Photovoltaic cell. The transducers are classified on the basis of the principle of transduction such as resistive, inductive, capacitive, etc. 1. Analoge & Digital transducers 5.Transducers & Inverse transducers. Submitted To:- Primary & Secondary transducers 3.Active & Passive transducers 4. See our User Agreement and Privacy Policy. Classifications:-1.Based upon transduction principle used 2. eg: Peizoelectrical crystal. Classification of Transducers Analog and Digital Transducers In the case of analogue transducers, the input quantity is converted into an analogue output, which is … APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. depending upon how they convert the input quantity into resistance, inductance, and capacitance respectively. Analoge transducers converts input quantity into an analog output which is continous function of time. Digital transducer converts input quantity into an electrical output is in the form of pulses Transducers those which don’t require an auxilary power source to produce their output are known as ‘Active transducers’ or self generating type. 1). eg: Resistive, Capacitive, Inductive. 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. This is the first type of classification of a transducer. LVDT, strain gauge, thermocouple, and thermistor are some examples of analogue transducers. II. However, a sharp distinction in the classification is difficult and often results in overlapping. Thermister; Resistance Temperature Transducer; Self Generated Transducers. Asst Prof. Amit A Kulkarni Types of Transducer. A measurement system consists of sensors, actuators, transducers and signal processing devices. These transducers are also called as pressure indicators, ma… On the basis of transduction principle used. Powered by Discourse, best viewed with JavaScript enabled, What is control system? NB: Transducer is also known as “Pick-up”. Classification of Transducers Analog and Digital Transducers. Analoge & Digital transducers 5.Transducers … This transducer is also named as -self-generating transducer. Transducer Classification. There are a variety of transducer types like pressure transducer, piezoelectric transducer, ultrasonic transducer, temperature transducer, and so on. 1.Based upon transduction principle used If you continue browsing the site, you agree to the use of cookies on this website. Self generating transducers - Thermocouple, Thermopile, Moving coil generator, Piezoelectric transducer, Photovoltaic. 5.Transducers & Inverse transducers, 1.Based upon the transduction principle:-. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. So let’s check on classification of transducers. So let’s check on classification of transducers. So Transducer can be categorized on the basis of four thoughts. Moreover, cross … Inductance - Magnetic circuit transducer, Reluctance pick-up, Differential transformer, The name of each class is keyed to the transduction mechanism, but its explanation is given along with the description of the transducer. a diaphragm) Displacement transducers (e.g. Before going to the classifications we have to check-out, what are transducers? 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