Various Uses of Capacitive and Inductive proximity sensors
A proximity sensor is an instrument that detects the presence of nearby objects without any physical contact. A proximity sensor regularly emanates an electromagnetic field or a light emission radiation (infrared, for example), and searches for changes in the field or return signal. The object being detected is frequently alluded to as the proximity sensor’s objective. Diverse proximity sensor targets request distinctive sensors.
There are various types of proximity sensors such as Inductive, capacitive, photoelectric and magnetic proximity sensors.
Capacitive proximity sensor

Capacitive proximity sensors are perfect for level and feed monitoring. From strong material, for example, paper or wood, to granules or fluids, they can be depended upon to identify what is going on in the creation procedure and amid definite review. For example to know whether there is something behind the cover? How much paint is still left in the tank? Are some of the questions which a capacitive proximity sensor can easily answer?
These sensors can sense ranges between 1 and 25 mm which allows them to be used in nearly all installation situations. These sensors are also resistant to interference, impurities, contamination and dust.
Inductive proximity sensor

An inductive proximity sensor can distinguish metal targets moving toward the sensor, without physical contact with the objective. Inductive Proximity Sensors are generally ordered into the accompanying three sorts as per the working standard: the high-frequency oscillation type using electromagnetic induction, the attractive sort utilizing a magnet, and the capacitance sort utilizing the adjustment in capacitance.
This technology can be used in applications where the metal object is to be detected is within an inch or two of the sensor face. Currently these sensors are used in light duty packaging applications and on the automotive welding equipment.
