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2. Smart sensors are sensors with integrated electronics that perform the following functions:  Logic functions  Two-way communication  Make decisions

3. The smart sensor is used with other sensors:  Pressure  Electrical Conductivity  Dissolved Oxygen  Turbidity  pH  Temperature  ORP

4.  An analog signal is converted to digital form by an analog to digital converter  The ADC gives the end of conversion signal to the processor  Smart sensors also include internal memory to store the data and program required

6.  An intelligent (or smart) sensor has a built-in microprocessor for automatic operation, for processing data, or for achieving greater versatility. A general architecture of smart sensor consists of following important components:  Sensing element/transduction element,  Amplifier,  Analog multiplexer,  Analog to digital converter (ADC),  Digital to analog converter (DAC),  Memory  Processor

7.  Optical sensor: Optical sensor is one of the examples of smart sensor, which are used for measuring exposure in cameras, optical angle encoders and optical arrays.