Proximity sensor question, speed

[Sandor Akarki]

Which proximity sensor/switch would you recommend from the <2ms response time range when power consumption matters? Range: <=3cm. The smaller is the better, there are electromagnetic coils around. I found that APDS-9190 might be close; a little quicker and smaller would be better.

 

[cl10greg]

What are you detecting? How are you detecting it? You can use reflective optical sensors or break beam sensors or magnetic sensors or many other things. So a little bit more about the system always helps.

 

[Sandor Akarki]

Bearings steel balls, between rings in a magnetic environment. Speed needs to be checked to ensure that there is enough oil and that it does not start to burn by calculating heat (air temperature is checked by a different PCB).