Hey guys
wanna know something bout different proximity sensors.....
as per my knowledge der r 5-6 types of proximity sensors
Our company is starting a new project in which we r planning 2 use some proximity sensor for calculating the flow and volume of liquid

Can anybody give any feature comparison sheet between different proximity sensors????
Based on the comparison on d basis of target distance, material, temperature and all d possible features we need to freeze our design with the selection of appropriate sensor.

Please help me in getting some comparison details between different proximity sensors...............