Incremental Encoder Line Card

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...

Sensors Online Press Release

July 23, 2018

QM35 and QML35 Press Release on www.sensorsmag.com https://www.sensorsmag.com/components/encoders-offer-high-performance-low-profile

Motion Control Tips Press Release

July 23, 2018

QM35 and QML35 Press Release on motioncontroltips.com https://www.motioncontroltips.com/new-qphase-encoders-from-quantum-devices/    

Skewed Encoder Waveform

April 24, 2016

I received this e-mail from a potential customer who is trying to determine why his Encoder waveform doesn’t look right.  His name has been changed to protect his identity. Hi Jim I have just come across your Web page on RPM calculation using an optical encoder and oscilloscope. I was...

Air gap in high resolution optical encoders

April 18, 2016

As the resolution of optical encoders increases, the distance from sensor to disk decreases. In the incremental encoder industry, this distance is called the “Air gap”.  In the side view photo of an optical encoder above, the two red lines indicate the air gap between the sensor and disk  in...

Incremental Encoder Engineer interview

April 4, 2016

I was featured in an interview with EEweb. Jim Miller – Application and Design Engineer at Quantum Devices How did you get into electronics/ engineering and when did you start? I started when I was pretty young, like nine or ten, taking apart radios and using an old wood-burning tool...

Incremental Encoder Lathe Automation

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...

Cable length considerations with Incremental Encoders

March 16, 2016

The QD145, QD200 and QR12 series of optical encoders have  28 AWG conductors in the standard flying lead cable. This gauge of cable is excellent for tight bends and fitting in applications where space is a premium.  The conductors can easily handle the 250 mA max current requirement of the...

QD145 Incremental Encoder Shaft Tolerance

March 9, 2016

I received a phone call the other day that caught me a bit off guard. A customer was asking what tolerance they need to have on their motor shaft for it to fit with one of our incremental encoders.   I reflexively told the customer that we machine our shaft...

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