How Are Eddy Current Drivers Calibrated on Field?

In some cases, you might need to calibrate your eddy current drivers when you are on the field. While it is possible to calibrate the drivers while on the field, machine calibration is often limited to calibrations of the original factory range, as well as the specifications.

For the ECL101

The output of this eddy current driver is 0-10VDC. The closest point to your target is zero volts, which is the offset.

First, position the Front Panel Zero adjustments to your machine’s mid-points. This will be 25 turns to one direction and then 12 turns back in order to center your adjustment. Now set your probe to the minimum to offset it.

Using the Calibration Zero adjustment on the device’s bottom, you can set the output voltage to around 0.00VDC. Then position your target gap and probe to your range’s mid-point. Set the output to 5.00VDC using your Calibration Gain.

Put the probe on the maximum setting and use your Calibration Coarse to set your output voltage to 10.00VDC. You may need to repeat these steps a few times until you reach your desired results.

How CNC Machine Tool Calibration Works for the ECL130

The regular output for this device is ±10VDC. The center of this range is zero volts, and this is often known as the standoff. The point closest to your target is -10V.

First, set the gap to the range center, or standoff. Then set your output to 0.000VDC by using the Fine Zero and Coarse adjustments. Now set your gap to the smallest gap, and using the Gain adjustment, set your output to –10.000VDC.

Next, set the gap to the largest gap, and set your output to +10.000VDC using your Fine Linearity and Coarse adjustments. Each of the adjustments can interact, so repeat these steps as needed.

For the ECA101

The output from this device is 0-10VDC. The closest point to your target is zero volts, which is the offset. You need to use a precise method of adjusting the target and probe gap to calibrate it.

First, set your target gap to the offset, or minimum. Then adjust the Front Panel Zero to 0VDC output. Now set your target gap to the maximum and adjust the Front Panel Gain to your desired output voltage. This is often 10VDC.

Finally, ensure that the output voltage changes through your range. Remember, there is a minimum and maximum gap where your output does not change. Ensure that these points are not in the calibrated range.

Get the Best CNC Machine Calibration Services

When it comes to CNC machine tool calibration, Maintenance Diagnostic Systems, Inc. is here to serve you. We can help you get your machines calibrated and ready to go. To learn more, feel free to contact us today.