May 7, 2020
An INDEX PULSE is a digital signal generated from an incremental encoder on an individual output channel, once per revolution. This unique pulse may be used for several purposes: In conjunction with a counter, it can be used to track the total number of shaft rotations. It may be used...
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...
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...
March 2, 2016
When using an incremental rotary encoder, you often have to know how many pulses there are per degree of rotation. This is a very straightforward math problem. Pulses per Degree = Number of encoder pulses per rotation/Number of degrees in a circle For a 5,000 line count incremental encoder we...
February 16, 2016
Quantum Devices is now offering an interface cable to our QDH20 series of industrial incremental encoders. While we like to focus more on building encoders than “add on” products, we did find this to be something that made sense to offer with our QDH20 encoders. At this time, the ten...
October 1, 2014
The index pulse, often also called “Z” or “Marker pulse”, of an optical incremental encoder is a once per revolution digital pulse that is used for homing or count verification of incremental signals. In the QD145 and QD200 series of encoders, the index pulse fires when the mark on the...
August 10, 2014
Sometimes you don’t have the right tools to do the job. Let’s say you needed to identify where the index pulse was firing on your incremental encoder, but you left your oscilloscope in your other jacket pocket, and now all you have on hand is a Digital Multimeter (DMM). Well...
June 29, 2014
Which Encoder Wires Should I Use to Begin Understanding Incremental Encoder Signals? Channels A & B (Incremental Channels) Use only A (or only B) for an RPM or counting applications where the rotation is either unidirectional, or where you don’t need to know direction. Use A and B together to...
April 27, 2014
. I have interfaced a 200 line count QR145 optical encoder to a DL06 PLC. The PLC’s inputs are set up in high speed mode to receive the incremental quadrature pulses coming from the optical encoder. . CT174, the designated high speed up/down counter is used to interface to the...
Create an account to gain access to all of our 3D models!
Create an account to gain access to all of our 3D models!
