Magnetic Linear Encoder: Positioning Accuracy & Machining Speed Guaranteed
A scanning unit and a scale are the two main parts that make up a magnetic linear encoder. The scale is usually made up of glass and is cemented to be able to support a number of materials. The scanning unit itself is made up of a light source, the second piece of glass which is referred to as a scanning reticle, and photocells. The scanning reticle usually sits at a short distance away from the scales themselves. Below we will be covering the basic operations of a magnetic linear encoder as well as what elements this equipment consists of and what each element does.
They can be used in nearly every industrial application, but are particularly great when it comes to machines that have a feed axes in a closed loop. Some machines you may know of with this feature could include milling machines, machining centres, boring machines, lathes, grinding machines, and much more. There are so many different reasons why industries rely on magnetic linear encoders: their highly reliable speed, precision, as well as their ability to execute the job precisely. You can also find a magnetic linear encoder that has been build for manual machine tools, presses, bending machines, automation equipment, and production equipment, making magnetic linear encoders highly versatile and highly sought after.
There are many advantages to using this kind of encoder which is what makes it a popular choice. It can easily measure the position of linear aces without any addition equipment or mechanical equipment. Any transfer errors during the process can also be detected by the linear encoder which is easily corrected through the control electronics. This means that correcting errors is easy as well as gaining a few more benefits that you might not have known about. Some of the errors that the linear encoder can correct include any positioning errors that can happen from thermal behaviour connected to the recirculating ball screw, hysteresis, and kinematic error which can happen through the ball screw pitch. This is why most industries would agree that a linear encoder is an indefensible piece of equipment that is a must for any industry that needs great positioning accuracy and speed.
When it comes to the design there are a few things that all linear encoders should have in common. It is important to know what to look for to make sure you get the best quality magnetic linear encoder you can. You should look for encoders that are sealed and have aluminium housing which protects the scales. It is important that things like chips, dust, and fluids have no way of getting inside the housing, so look for something that seals them. It is also important to note that any machinery that moves at a rapid pace needs to be measured when it comes to its thermal activity. Make sure to match the thermal behaviour of your encoder to the object it will be working with. There are many great encoders available that have been designed for this purpose. If you are someone who thinks they can benefit from this technology but are unsure of where to find an encoder yourself, you can easily search online for a manufacturer near you.
