with which the reading approaches an accepted standard value or ideal value or true value, of the variable being 8. Measurement is an important subsystem in any major system, whether it may be a mechanical system or an electronic system. The output must remain unaffected by Repeatability: The output of the transducer must be exactly the same, under same environmental conditions, when the same quantity is applied at the input … The other differences between active and passive transducer … when the graph relating input to output … With change in area A due to displacementThe is a linear relationship between the input and output. We use cookies to ensure that we give you the best experience on our website. : The sensitivity of the response of the transducer should be as high as practicable. will be minimum error in measurement. Depending details of this … The type of input, which can be any physical quantity, is generally determined in advance. The output range can be increased, in some cases, by the inclusion of an amplifier in the transducer. This output signal can be used to control the physical quantity or display it. Noise: All transducers add some random noise to their output. quantity. However, in some cases the relationship between the output qo, and input qi, is linear. It should have linear input - output characteristic. The transduction element transforms the output of the sensor to an electrical output, as shown in the Fig. This whole device forms a sensor. In fact, the transducer should maintain a good resolution throughout its operating range. The response of the transducer to environmental influences of great importance. The important characteristics of transducers are – Transfer Function. range should be wide, so that it can be used, It is the 5) Resistive sensors or Variable Resistance Transducers: There is change in the resistance of these sensors when certain physical quantity is applied to it. Output characteristics of a capacitor transducer With distance between the plates dThe relation between the input d and output C are in the powers of 2 and inversely proportional. This is often given insufficient attention when choosing the best transducer for a particular application. Speed of Response: It is the for a given transducer. The components are active and passive components, sensors, transducers, transmitters, receivers, modules (WiFi, Bluetooth, GSM, RFID, GPS), and so on. The output generated is proportional to the quantity that should be measured. For example, the input variable to the transducer could be pressure, acceleration, or temperature and the output of transducer may be di l tdisplacement, voltage, or resitistance change depending on the type of transducer element. Characteristics Of Transducers. The foremost consideration for the choice of a transducer is the input quantity it is going to measure and its operating range. For example Piezoelectric crystal. Linearity: The output of the transducer should be linearly proportional to the input quantity under measurement. Sensors and transducers are closely related to each other. A transducer uses many effects to produce such conversion. Whenever we use or choose a transducer for any application or any purpose we have to look at its characteristics which tell whether the transducer is suitable for the application or not. rapidity with which the transducer responds to changes in the, Basic Electrical and Electronics and Instrumentation Engineering, Basic Electrical and Instrumentation Engineering, Basic Electrical and Electronics and Measurement Engineering, Electrical Engineering and Instrumentation, Important Short Questions and Answers:Storage and Display Devices, Advantages and Disadvantages of Electrical Transducers, Resistance Thermometers: Construction, Advantages, Limitations, Thermistors: Construction, Advantages, Limitations, Capacitive Transducers and its Application. 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