I have a question about the 10M depth sensor, https://bluerobotics.com/store/sensors-sonars-cameras/sensors/bar02-sensor-r1-rp/ , I have seen that the resolution is .16mm , it’s perfect but I need the sensor to give me this precision at water level and 10 centimeters below it but I see something that I don’t understand in the technical details of the product…
-What is the difference between Extended Operating Pressure and Standard Operating Pressure?
-I am going to use this sensor because I need a very precise resolution at the water level (0 bar) and at 10/15cm (0.10 bar) below, can this sensor help me with the indicated resolution of .16mm?
The sensor can operate in the “extended” range, but it’s less accurate than in the “standard” range. There are some accuracy charts on page 4 of the datasheet.
Note that resolution has to do with the increments used in the measurement output - it’s not the same thing as accuracy (which for this sensor depends on both temperature and pressure). If you have a piece of string that’s 9±0.5 cm long, and you use it to measure something as 5 lengths of that string, your final measurement has a resolution of 9cm, but the measurement you made may be inaccurate by up to 2.5 cm in either direction (assuming no additional human error while measuring).