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Tyler Davis

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Proximity Sensors

What is a Proximity Sensor?

Proximity sensors are used for contactless detection of presence or absence, as well as the position, direction, velocity, and physical properties of objects. The proximity sensor sends an analog or digital output which can be used for counting, sorting,...
Contactor vs. Relay

Contactor vs. Relay

What is the difference between a contactor and a relay? The Basics Contactors and relays perform the same task and operate under very similar principles. In essence, to turn things on and off, we need devices that are switchable by application...
Applications Ultrasonic proximity sensors measure the distance of an object by measuring the time between emission and reception of a pulse of sound. Because ultrasonic sensors use sound for detection, they are able to detect non-metallic, non-transparent and complex objects which...
Applications In general, inductive proximity sensors are used any time you want to detect the presence of a metal in a particular location. The most common application for inductive proximity sensors is machine position verification. Another application would include detecting the presence...
Applications Photoelectric sensors use a light beam to detect presence, position, markings or color of an object. Photoelectric sensors can detect physical properties of objects, including color, shape and luminescence. They have a wide range of industrial applications in packaging, material...
Applications Capacitive proximity sensors can be used in a wide variety of applications due to their ability to detect numerous types of materials. Some common examples would include material feeding applications such as hoppers, or detecting the level of liquid in...
Applications Magnetic proximity sensors including Hall effect and magneto-resistive sensors are used for detecting and positioning magnetic objects, angular positioning of parts in an assembly, and for controlling complex motor operations. Examples of applications of magnetic sensors include the positioning of...