A Sensor is a converter that measures a physical quantity and converts it into a signal which can be read by an observer or electronic instrumentation. A sensor is a device which receives and responds to a signal when activated. A sensor’s sensitivity indicates how much the sensor’s output changes when the measured quantity changes.
Sensors are used in everyday objects such as touch-sensitive elevator buttons (tactile sensor) and lamps which dim or brighten by touching the base. There are also innumerable applications for sensors of which most people are never aware. Applications include automotive, transportation, aerospace and medical. The miniaturization of sensors due to MEMS technology has created a proliferation of new applications in a wide variety of markets.
The types of sensors that we manufacture can be divided into four main groups: