March 29, 2016
I have been working on a project to automate a manual lathing operation for our incremental encoder/optical encoder line. To keep things simple, thumb switches allow the set point, along with some offsets for fine-tuning, to be entered. I am not completely finished with project, but in the video below...
February 24, 2016
Quantum Devices Inc. has a mounting option that allows for IP66 sealing of the QR145 Incremental Encoder. There are two o-rings in the clam shell design; one o-ring seals the encoder to the mounting surface (usually a motor) and the other o-ring seals the end bell housing that covers the...
February 3, 2016
We have always been able to come up with a suitable replacement for Renco encoders, but our customers are making us aware that we need to point that out. For those who don’t know, Renco, after being absorbed by Heidenhain, made the decision to eliminate much of their encoder product...
January 26, 2016
Potentiometer vs Encoder Recently, I decided to catalog the competitive incremental encoders that have populated the shelves surrounding my desk. In doing so, I was surprised to find that many of our competitors use potentiometers in their designs. I can understand why they need to use potentiometers. In most...
January 20, 2016
We recently teamed up with one of our Optical Encoder Distributors to create a Demo box that showcased our QD145 encoder with a Delta Tau PLC and touchscreen panel. It was sent off to a trade show where potential customers would get to spin the encoder and watch on the...
October 21, 2014
Why Do My Incremental Encoder Signals Disappear? Today I was called to the production floor after one of the test Technicians noticed that the encoder signals disappeared from the oscilloscope when they ran the encoders “unloaded”. I asked one of the techs if the encoders being tested were of the...
August 27, 2014
What’s the difference between a brushless motor with a commutating encoder and a brush motor? Well, the brushes of course. And, without brushes – the need for a commutating encoder for current carrying. Yeah, but what does that mean? The principle behind the internal working of both a brushless DC...
July 19, 2014
O. Another Way to Mount an Optical Encoder Instead of using an end bell, a lot of our motor manufacturer customers recess the QD145 optical encoder into an extended motor housing and then seal the motor with an endplate. This has the advantage of being a lower cost item to...
June 17, 2014
Gray code was named for Frank Gray, a Bell labs researcher, who patented the procession in 1953, even though a form of it was used by Emile Baudot for telegraphy as early as 1878. The most important thing to understand about Gray code is that only one bit changes from...
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