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The active transducer generates output without using external power source whereas passive transducer uses an external power source. When we squeeze this piezoelectric material or apply any force or pressure, the transducer converts this energy into voltage. The best examples of nonelectrical quantities are pressure, temperature, and the illumination of light. The transducers which requires an external power and their output is a measure of some variation such as resistance, inductance, capacitance etc., are called as a) Active transducer b) Primary sensor c) Self generating transducer d)Passive transducer Ans : (d) 32. Do not require an external power and they produce an analog voltage or current when stimulated by some physical form or energy. Bestsellers. Active Transducer – The transducer which does not require the external power source is known as the active transducer. Smallest change in pressure that it can be detected in its output is very low, i.e it has a low resolution. A passive transducer will require an external power source to operate. For example, a thermocouple is self-generating, producing a change in resistance in response to a temperature difference, whereas a What's difference between CPU Cache and TLB? A piezoelectric crystal transducer/sensor is an active sensor and it does not need the help of an external power as it is self-generating. What’s difference between Linux and Android ? Thus, this is all about an overview of the active transducer . en Change Language. •As the output of active transducers we get an equivalent electrical output signal An active transducer is a self-generating type transducer that has the ability to generate electrical voltage or current as its output without using any external source of power. The main function of this is to convert the energy from nonelectrical to electrical. Capacitive, resistive, and inductive transducers are all passive. 1. II. What is the Difference between 8051, PIC, AVR and ARM? They work under energy conversion principle. The transducer is classified by the transduction medium. What's difference between Microcontroller (µC) and Microprocessor (µP)? The best example of this is Thermocouple, Tachogenerator, PV cell, etc. Therefore they are also called as self generating type transducers. generate link and share the link here. The electromagnetic transducer is self-generating active transducers. The output of passive transducers depends on signal from external power supply. Self generating type transducers are _____ transducers. The arrangement of this crystal can be done in between two metallic electrodes. Shocks, pressure, vibrations, etc external source of power for generating output from an auxiliary power source ). Voltage for an equivalent electrical signal the transducer piezoelectric crystal transducer/sensor is an quantity! Temperature, and inductive transducers are also called as self generating devices which operate under the energy non-electrical... 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