LDC5071-Q1: Using inductive sensor to detect rotating angle with +/-0.1 degree tolerance

Ryder Nguyen

Prodigy 30 points

Part Number: LDC5071-Q1
Other Parts Discussed in Thread: LDC1314, LDC1614

Hi!

I need to make a rotary angle sensor

Now I am using a magnetic hall sensor for the first solution but I need another magnet-free solution

Can I use an inductive sensor to detect the rotary angle with +/-0.1 degree tolerance?

Could you give me some reference design if that is possible

Thanks

Ryder

8 months ago

0 John Miller - Sensing 8 months ago

TI__Mastermind 35755 points

Ryder,

We have a ref design that uses the LDC1314 inductive sensor for angle estimation: https://www.ti.com/tool/TIDA-00508 .
It is oriented towards 1deg absolute accuracy and 0.1deg resolution, but it could serve as useful starting point.
A higher resolution device, like the LDC1614 might help improve the angle accuracy of the design.

Another ref design uses Hall sensors for accurate angle detection: https://www.ti.com/tool/LDC-HALL-HMI-EVM

We don't have any ref designs to offer yet for the LDC5071/2, but we do have a sensor design tool for these devices:
https://www.ti.com/tool/LDC507X-SENSOR-DESIGN-TOOL
The tool provides some great tool tips that give guidance on the various parameters for the system.

The tool installation & getting started guide provides guidance on some system-related info: https://www.ti.com/lit/pdf/snou195
That may be helpful as well.

regards,
John

Sensors

Sensors forum

LDC5071-Q1: Using inductive sensor to detect rotating angle with +/-0.1 degree tolerance