1 - What is a Sensor?

Our company mainly produces four types of sensors: pressure sensor, pressure switch, temperature sensor and temperature switch.

There are numerous definitions as to what a sensor is but we would like to define a Sensor as an input device which provides an output (signal) with respect to a specific physical quantity (input).
The term “input device” in the definition of a Sensor means that it is part of a bigger system which provides input to a main control system (like a Processor or a Microcontroller).
Another unique definition of a Sensor is as follows: It is a device that converts signals from one energy domain to electrical domain. The definition of the Sensor can be understood if we take an example in to consideration.

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