Sensor for tracking distance with lower than 1mm accuracy??

[313230]

Hi everyon,

I need to track a small object from a fixed position with 1mm accuracy, just need to know how far it is. What kind of solution do I need?

Thanks in advance

 

[klystron]

What is your maximum range?

 

[piyush_bhatt]

how far you will go from that object?

 

[tinto]

You can use an ultrasonic sensor to calculate the distance from nearly 2cm to 4m. Less than 1mm accuracy is possible with it. For example, a **broken link removed**.

 

[klystron]

Ultrasonic ranging has a temperature dependency that must be compensated for