File Name: difference between sensor and transducer .zip
A digital sensor produces discrete digital signals.
sensors and transducers pdf nptel
One of the significant difference between the sensor and the transducer is that the sensor senses the physical changes occur in the surrounding whereas the transducer converts the physical quantity or nonelectrical into another signal or electrical signal. Some other differences between the sensor and transducer are explained below in the comparison chart. The transducer and sensor both are the physical devices used in electrical and electronic instruments for measuring the physical quantities. The sensor detects the energy level and changes it into an electrical signal which is easily measured by the digital meters. The transducer transfers the energy either in the same form or another. Basis For Comparison Sensor Transducer Definition Senses the physical changes occurs in the surrounding and converting it into a readable quantity.
The physical devices, sensor and transducers are might used by some people interchangeably. These devices are used in numerous electrical and electronic gadgets and appliances. But, people fail to make a difference between sensor and transducer. Because, transducers are sometimes found in sensors. The main difference between sensor and transducer is, the sensor is a physical device, that senses a physical quantity and then converts it into signals which can be read by an instrument or the user.
Difference between a Sensor and a Transducer
Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. History has shown that advancements in materials science and engineering have been important drivers in the development of sensor technologies. For instance, the temperature sensitivity of electrical resistance in a variety of materials was noted in the early s and was applied by Wilhelm von Siemens in to develop a temperature sensor based on a copper resistor. The high resonance stability of single-crystal quartz, as well as its piezoelectric properties, have made possible an extraordinarily wide range of high performance, affordable sensors that have played an important role in everyday life and national defense.
The main difference between a sensor and a transducer is the output signal. Both a sensor and a transducer are used to sense a change within the environment they are surrounded by or an object they are attached to, but, a sensor will give an output in the same format and a transducer will convert the measurement into an electrical signal. Sensors are defined as a device which is used to measure a physical quality - for example - light, sound, temperature etc. For example a mercury thermometer; the mercury simply expands when the temperature rises to give a reading for the user, there are no electrical inferences or changes.
A transducer is a device that converts energy from one form to another. Usually a transducer converts a signal in one form of energy to a signal in another.
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