Inductive proximity sensors are suitable for many applications. Selecting models with factor 1 capability makes them even easier to deploy for sensing targets of varying metals. Andrew Waugh, Product Manager for Sensor and Safety products at AutomationDirect, authored an article for the May 2019 issue of Design World titled A Look into Factor 1 Proximity ... Read More
For a PLC to monitor and in turn control its application variables, there must be a way for it to sense its surroundings. In today’s industrial realm, there are a huge variety of electrical sensors that provide the input data (position, distance, level, flow, etc.) that control systems need. These basic sensors can be broken ... Read More
Andrew Waugh, Product Manager, Sensor and Safety Products at AutomationDirect.com, wrote an article for the September 2018 issue of Design World titled Wide and Narrow Views of Position Sensors, here’s a summary. Limit switches, photoelectric switches and laser sensors all provide position sensing, but depending on the application some shine and reflect better. Waugh points ... Read More
What is a Proximity Sensor? Proximity sensors allow non-contact detection of objects. In particular the presence of parts and/or machine elements for the purpose of counting, indexing, verification, end-of-stroke or travel, determining orientation, and many other common automation tasks. They are used in many industries, including manufacturing, robotics, semiconductor, etc. Selection Criteria There are several types of proximity ... Read More
A better understanding of distance laser sensors helps when applying these rangefinders in material handling and industrial measurement applications. By Andrew Waugh, Product Manager for Sensor and Safety Products at AutomationDirect What is a Laser Sensor? Laser sensors come in several configurations, with some detecting presence and others measuring distance. A proximity type laser sensor, ... Read More
A better understanding of photoelectric sensors helps when applying these versatile, non-contact presence sensing devices in industrial machine, conveyor and other applications By Andrew Waugh, Product Manager for Sensor and Safety Products at AutomationDirect What is a Photoelectric Sensor? A photoelectric sensor, often called a photo eye, uses light to detect the presence of an ... Read More
A better understanding of mechanical limit switches will help when applying these versatile devices in a variety of industrial applications. By Andrew Waugh, Product Manager for Sensor and Safety Products at AutomationDirect Mechanical limit switches are a common presence or position sensing device used in industrial automation systems. Typically, these switches are electromechanically operated, so ... Read More
Beyond the standard sensor types used in machine automation—such as photo eyes, limit switches and DC proximity sensors—are a wide range of color, contrast, AC proximity and area sensors. All of these sensors, as well as optical rotary encoders, are used to enable sorting, detection, error checking and positioning for machine automation.
Overview of Magnetic Proximity Sensors Magnetic proximity sensors are used for non-contact position detection beyond the normal limits of inductive sensors. In conjunction with a separate “damping” magnet, magnetic sensors offer very long sensing ranges from a small package size and can detect magnets through walls of non-ferrous metal, stainless steel, aluminum, plastic or wood. Depending on the orientation of the magnetic field the ... Read More
When it comes to detecting position and presence in automated equipment, be sure to consider limit switch as choices available today are robust, and can provide high precision. While photo eyes and inductive switches are popular choices in many applications, precision limit switches can be a better option with repeatable accuracy less than a micron.