Industrial automation is the use of control systems, such as computers or robots, and information technologies for handling different processes and machineries in an industry to replace a human being. It is the second step beyond mechanization in the scope of industrialization.
What is Instrumentation?
Instrumentation can has many different meaning related to its field of application. As Wikipedia define:
Instrumentation is a collective term for measuring instruments that are used for indicating, measuring and recording physical quantities. The term has its origins in the art and science of scientific instrument-making.
Instrumentation can refer to devices as simple as direct-reading thermometers, or as complex as multi-sensor components of industrial control systems. Today, instruments can be found in laboratories, refineries, factories and vehicles, as well as in everyday household use (e.g., smoke detectors and thermostats)
What is an Industrial sensor?
If we classify the sensors to home sensors and industrial ones, Then Industrial sensors would be those sensors that are used in factories and industrial zones for sensing and monitoring physical parameters like Pressure, Flow , Level ,Vibration and etc.
Sensor?! Transmitter?! Or Transducer?!
You may hear electronic pressure detectors referred to as sensors, transducers, or transmitters. And understanding the difference in what these three terms mean is important to ensure the chosen device is right for the end application; particularly with regards to cost, power consumption, susceptibility to noise, and constraints around wiring and installation.
So how do you differentiate between these terms?
As a scientific definition,
Sensor or transducer is A device that translates a physical property (pressure, temperature, humidity etc.) to an electrical signal.
Transmitters are devices that converts small signals to a amplified signal that can be sent over long distances.