January 3, 2019
As outlined in a previous post, our HR12 optical encoder is a popular choice for HEDS replacement. We also have found that the HR12 serves as a great HEDM replacement. Our HR12 rotary encoder boasts a wide range of line count options from 24 to 20,000 PPR as well as many...
September 19, 2018
Quantum Devices offers a full range of transmissive incremental encoders. Our rotary encoders are used in industrial and commercial motion control, including medical equipment, industrial automation, and automated guided vehicles (AGV). Our full incremental encoder line card is now available online. This is a helpful resource for comparing the configuration options available...
February 24, 2016
Quantum Devices Inc. has a mounting option that allows for IP-66 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...
November 20, 2013
The QDH20 is an IP66 sealed encoder made for the rugged duty of an industrial application. Due to the huge array of configuration options, this optical encoder has over 200,000 possible ways that it can be configured. While this is certainly an advantage to an end user that may be...
September 14, 2013
A standard edge sensing scheme for optical rotary encoders is to square up the raw analog sine wave by comparing it against a given voltage. If your analog signal has a 2Vpp amplitude, the value at which you switch off of, creating the edges of your square waves, could be...
June 10, 2013
Since most electronics are set up to have high input impedance, in some situations the addition of a loading or “termination” resistor can help to reduce interference from electrical noise. This can be of particular help when implementing an incremental encoder where there is a long cable run. If the...
May 13, 2013
. If you search the web for a rotary encoder tutorial on incremental encoder construction, the simplest two channel A & B style encoders talk about a light source and a single photo receptive element for each channel. The light beam of this optical pair is then interrupted by the...
May 4, 2013
. The QD-H20 is an idea replacement encoder for size 20 and size 25 industrial applications. It is an IP-66 sealed rotary incremental encoder. This high IP rating provides outstanding environmental protection with all of the line count and output options of the QD-145 incremental encoder. The QDH20 style...
May 1, 2013
“What resolution of rotary encoder do I need?” is a question designers often ask themselves. A common mistake is that a higher resolution is always better. This may or may not be the case. Ultimately it is the nature of the application that decides. Here are some things to take...
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