3 Ways to Test Encoders Without an Oscilloscope

What do all encoder manufacturers have in common? I know it is shocking, but they all make encoders — well, either that or have someone else do it for them. So if you were an encoder manufacturer with a philosophy of making things easier for your customers, what else might you also make besides the encoders themselves? 

Most companies that regularly work with encoders have an oscilloscope in their lab to analyze encoder signals. But what do you do if you are a technician or machine operator out in the field or on the factory floor? It is doubtful that you have an oscilloscope in your back pocket.

That is exactly why US Digital has developed several products over the years to bridge that gap—making it easier for anyone outside the lab to test and evaluate encoder performance. No, these tools don’t provide the same digital waveform view as an oscilloscope (yet), but take a look at what they can do for you.

The USB4, introduced in 2006, offers the broadest range of inputs and outputs. Features include:

•    Real-time tracking of up to 4 incremental encoders
•    Choice of single-ended or differential input models
•    Eight digital inputs and outputs
•    Programmable sampling period from 2 microseconds to approximately 2 hours
•    USB connection for PC-based configuration and diagnostics
•    Accepts digital input levels up to +25 V

The QSB was first released in 2012 and has received several upgrades to expand its capabilities. Its current feature set includes:
•    Low-cost, easy-to-use USB connection to a computer for data and power
•    Reads quadrature, analog, and PWM encoder outputs
•    Available in single-ended, differential, and single-ended with I/O versions
•    Stepper Motor Control
•    Adjustable baud rate
•    Quick Check for verifying resolution with index
•    Scope Function-signal snapshots available

US Digital’s newest tool is the ED4 encoder display. It is available now, and even more powerful enhancements are already in development — all to make your job easier. Current features include:
•    Color graphics LCD display with capacitive touchscreen and backlight
•    Two input channels for quadrature, analog, or PWM encoder outputs
•    Two alarm outputs and two digital capture inputs
•    Quick, intuitive setup using PC GUI software
•    Programmable display units, scale, and offsets
•    After programming, it can be used as a stand-alone diagnostic or reporting device
•    Display speed, resolution, position, level, alarm status, and more

Every one of these tools was created in response to customer feedback, with the goal of contributing to your success.

Together, the USB4, QSB, and ED4 reflect more than product design. They reflect a philosophy. When customers face questions that slow down progress, US Digital looks for practical ways to make things easier. These tools are simply another expression of that commitment.

Every job gets easier with the right tools. You wouldn’t drive a nail with a screwdriver, and you shouldn’t have to troubleshoot encoders without practical tools you can rely on. That’s exactly why we make them.

This is the second of several stories that demonstrate "making it easier" is not just a slogan; it is who we are.