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Statement (I): To use a sensor, we generally need to add signal conditioning circuitry, such as circuits which amplify and convert from analog to digital, to get the sensor signal in the right form, take account of any non-linearities, and calibrate it. Statement (II): A smart sensor is integrated with the required buffering and conditioning circuitry in a single element and provides functions beyond that of just a sensor.

Statement (I): To use a sensor, we generally need to add signal conditioning circuitry, such as circuits which amplify and convert from analog to digital, to get the sensor signal in the right form, take account of any non-linearities, and calibrate it. Statement (II): A smart sensor is integrated with the required buffering and conditioning circuitry in a single element and provides functions beyond that of just a sensor. Correct Answer Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Concept:

  • General sensors like strain gauge provides low electrical resistance change (∆R) corresponding to applied force F, but to transmit this low value to digital meter, we require amplifier and analog to digital convertor.
  • The extra equipment (circuitry/ devices) required to convert the output of sensors into more appropriate form called signal conditioning circuit.
  • Normal sensors requires extra ‘signal conditioning’ elements. But whereas smart sensors has inbuilt signal conditioning circuity.

Related Questions

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