LDC1000: Linear sensing

na na78

Guru 16770 points

Part Number: LDC1000

I'm referring the following blog.

I want to realize linearity sensing using LDC1000 with stretched coil.

Overview

Distance between target and coil : 2mm - 3mm

Target size : W 10mm / L 10mm

Target material : Iron or Zinc

Target displacement : Max 5mm

We have to sense target displacement (~ 5mm) linearly.

What kind of coil do you think it is the best choice?

And do you have design support tools for that?

BestRegards

over 7 years ago

0 Varn Khanna over 7 years ago

TI__Intellectual 2725 points

Hello nana,

You can refer to the following design guide and app note for help regarding linear position sensing using LDC devices.

In addition I would recommend considering the newer LDC1x1x devices instead of the LDC1000.

Regards,

Varn.

0 na na78 over 7 years ago in reply to Varn Khanna

Guru 16770 points

Hi Varn

Thank you for your reply.

Don't you have any tool to design stretched coil?
How can I get coil parameters for meeting our requirement?

BestRegards

0 Varn Khanna over 7 years ago in reply to na na78

TI__Intellectual 2725 points

Hi na na78,

What PCB layout design tool do you use? If you use Altium we have a script that can help generate these coils but if you are using a different PCB design tool, the coils will need to be generated manually.

In addition, we have the pre-fabbed LDCCOILEVM, which is available for purchase and has a bunch of different stretched coils. The design files for these coils are also available on the link I provided.

Regards,

Varn.

0 na na78 over 7 years ago in reply to Varn Khanna

Guru 16770 points

Hi Varn

Thank you for your suggestion.

We may ask you to help us about designing the coil but we think the system requirement should be considered in more detail at first.

let me close this thread in this time.

BestRegards

Sensors

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LDC1000: Linear sensing