Magnets in Proximity Sensing Applications
Without proximity sensors, the details of our day-to-day lives would change. For example, cell phones wouldn’t be as user-friendly, manufacturing would be less streamlined, and the food and beverage industry wouldn’t operate under the same sterilization standards. Smart technology and profitable manufacturing rely on accurate measurement, tracking, and monitoring; proximity sensors provide that.
The Many Types of Proximity Sensors
Proximity sensors differ from the more traditional option because they don’t require a mechanical switch, level, or plunger to be pushed against a target. While there are many types of proximity sensors – capacitive, ultrasonic, optical, radar, and vision – inductive proximity sensors are the most widely used. You can find them implemented in millions of processes world-wide to detect the presence or absence of metallic objects.
Magnetic Proximity Sensors
Similarly, magnetic proximity sensors – a type of inductive sensor – are non-contact devices. They operate through reed switch, inductive or variable reluctance, or hall effect operating principles. Basically, they sense a magnetic target (usually a permanent magnet), which triggers the sensor when it enters detection range.
These sensors can detect magnets through non-ferrous barriers such as stainless steel, aluminum, plastic, or wood while withstanding shocks, vibration, dust, dirt, water, high temperatures, and other harsh industrial or environmental elements. Because there is no physical contact – as with all proximity sensors – magnetic sensors last significantly longer than traditional switches.
You’ll often find this type of inductive sensor used in the oil and gas industry, measuring variables on offshore rigs. Because they can handle harsh conditions like saltwater, and are impervious to oil, grease, and dirt, they make a durable option.
Taking a hard left turn from oil and gas, you’ll also find them used in beverage processing applications, as well as canned product position detection. Inductive sensors can perform position monitoring without requiring the kind of readjustments that maximize production downtime.
Apex Magnets in Production
The world will always look for ways to improve production and increase profitability. Due to their strength, durability, flexibility, and adaptability, permanent magnets are often part of that equation as seen with magnetic proximity sensors.
If you represent a business that is trying to improve efficiency and reduce the cost of processes by using permanent magnets, give us a call. We are more than happy to walk through potential applications, troubleshoot the variables, and hook you up with the best possible product.