This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: LDC1614EVM
I move a long skinny cylindrical magnet through a solenoid coil. I have this coil attached to LDC1614EVM CH2 port.
I move the magnet 1 inch back and forth using a stepper motor stage. (one end of magnet is always inside the coil, the other end is always outside the solenoid)
I stream data to a file using the OneUI application.
The data is fairly linear, BUT, has consistent hiccups in the reading in the middle of travel. (as shown in this graph)
Any idea what could be causing these hiccups. (I want to use the sensor for linear distance, but hiccups would be a problem for me)
Hello Craig, The hiccups you mention look to be systematic and repeatable in the same locations which leads me to believe it is related to something mechanical in the system. Have you confirmed that your stepper motor is not the culprit and that it actually does have a linear response? I've seen stepper motors sometimes overshoot the target and correct itself. For debugging purposes, you could try speed it up to see if the problem becomes more pronounced or try slowing it down to see if smooths out. Also, if you slow it down you can check each increment independently to see if there is a transient behavior caused by the stepper motor or if the response is actually linear.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Luke LaPointe:
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.