Re: Suggestion on LVDT?

["Makarov, Oleg A. via Tech-talk" <tech-talk at aps.anl.gov>]

Hi Guobao Shen,


I suggest a different technology to be used for linear displacement 
sensing: an optical linear encoders:
https://www.celeramotion.com/microe/products/linear-encoders/compact/veratus-series-vi/

these provide resolutions down to 20 nm and up to 30 m measuring lengths.


Regards,
Oleg Makarov

On 8/20/2020 2:40 PM, Shen, Guobao via Tech-talk wrote:
> Hi Community,
> Does anyone have a suggestion about an electronics on the LVDT?
> We, here at APS, are currently using North Atlantic NA7800 LVDT, and want to have a replacement.
>
> Appreciate if there is any suggestion a newer version of  electronics, especially VME module, as well as the EPICS driver availability.
>
> Thanks,
> Guobao
>
> ---
> Guobao Shen
>
> Controls Group Leader
> Accelerator Systems Division
> Advanced Photon Source Bldg. 401-C2268
> Argonne National Laboratory
> 9700 South Cass Avenue
> Argonne, IL 60439
>
> Office:  630-252-1614
> Email:  gshen at anl.gov<mailto:gshen at anl.gov>
>
>