Week5:Proximity Sensor

          In my project circuitry i have decided to use proximity sensor because in order to make my load run as there detecting something that presence nearby.The maximum distance that this sensor can detect is defined "nominal range". 

          Some sensors have adjustments of the nominal range or means to report a graduated detection distance.Proximity sensors can have a high reliability and long functional life because of the absence of mechanical parts and lack of physical contact between sensor and the sensed object.

           Proximity sensors are also used in machine vibration monitoring to measure the variation in distance between a shaft and its support bearing.

Here i'm attached a circuitry drawing of Proximity Sensor that i searched from the web and also i'm using this circuit drawing as a reference to my sensor circuit for my project.