Introduction: are devices used to transform one kind of energy to another. When a transducer converts a Transducers (sound, pressure level, optical intensity, magnetic field, etc.) to an or an physical quantity electrical voltage we call it a sensor. electrical current When the transducer converts an into another such as sound, light, or electrical signal form of energy, mechanical movement, it is called an actuator. As an example in figure 1, transducers are used in to convert signals of various physical forms to , and vice versa. In this example, the first transducer could be a , and the second transducer could be a . Transducers in a communication system Figure 1: A transducer is made of three blocks: an input (physical parameter), a sensor and an output (electrical signal) as shown in figure 2. Figure 2: Transducer Structure Classification of transducers: The classification of transducers is made on the following basis: 1. Based on the physical phenomenon: Primary transducer and Secondary transducer. 2. Based on the power type Classification: Active transducer and Passive transducer. 3. Based on the type of output: Analog transducer and Digital transducer. 4. Based on the electrical phenomenon is a best Classification of Transducer:
Introduction: Transducers are devices used to transform one kind of energy to another. When a transducer converts a physical quantity (sound, pressure level, optical intensity, magnetic field, etc.) to an electrical voltage or an electrical current we call it a sensor. When the transducer converts an electrical signal into another form of energy, such as sound, light, or mechanical movement, it is called an actuator. As an example in figure 1, transducers are used in to convert signals of various physical forms to , and vice versa. In this example, the first transducer could be a , and the second transducer could be a . Figure 1: Transducers in a communication system A transducer is made of three blocks: an input (physical parameter), a sensor and an output (electrical signal) as shown in figure 2. Figure 2: Transducer Structure Classification of transducers: The classification of transducers is made on the following basis: 1. Based on the physical phenomenon: Primary transducer and Secondary transducer. 2. Based on the power type Classification: Active transducer and Passive transducer. 3. Based on the type of output: Analog transducer and Digital transducer. 4. Based on the electrical phenomenon is a best Classification of Transducer:
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