Primary & Secondary transducers II. APIdays Paris 2019 - Innovation @ scale, APIs as Digital Factories' New Machi... No public clipboards found for this slide. eg: strain gauge, LVDT, Thermocouple. So Transducer can be categorized on the basis of four thoughts. Here bourdon tube acts as primary transducer and LVDT acts as secondary transducer. On the other hand transducer that can’t work on the absence of external power supply are called ‘passive transducers’. Transducers may be classified according to their application, method of energy conversion, nature of output signal, etc. Photomultiplier tube. Based on the electrical phenomenon or parameter that may be changed due to the whole process. Passive Transducer– The transducer which requires the power from an external supply source is known as the passive transducer. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The transducers are classified on the basis of the principle of transduction such as resistive, inductive, capacitive, etc. So they are not self generating type transducers. The foremost consideration for the choice of a transducer is the input quantity it is going to measure and its operating range. Speed of Response: It is the rapidity with which the transducer responds to changes in the measured quantity. Electrical Transducers 5. The type of input, which can be any physical quantity, is generally determined in advance. Powered by Discourse, best viewed with JavaScript enabled, What is control system? Thermister; Resistance Temperature Transducer; Self Generated Transducers. LVDT, strain gauge, thermocouple, and thermistor are some examples of analogue transducers. Department Of Electrical Engineering Open loop and Closed loop control system. IV. If you continue browsing the site, you agree to the use of cookies on this website. Check here. Analog and digital transducers. On the basis of transduction form it`s used, we can go further. So let’s check on classification of transducers. (2170913) Therefore, an electrical device acts as a secondary 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 The capacitive, resistive and inductive transducers are the example of the passive transducer. Classification of Transducers: There are many principles on which a transducer can work like resistive, inductive, capacitive etc. •Electrical transducers •voltage, current, frequency. 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. 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 communication can be … B.H.Gardi College Of Engineering & Technology These are also used in the systems which perform specific tasks, to communicate with the real world. A physical quantity may be measured by the use of a number of transducer. Here the measuring variable pressure is passed through bourdon tube. Capacitance - Variable capacitance pressure gauge, Capacitor microphone, Dielectric gauge. Prepared By:- We have already looked into transducers, inverse transducers are just the opposite of transducers in function. Classification of Transducer 3. Transducers those which don’t require an auxilary power source to produce their output are known as ‘Active transducers’ or self generating type. 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