ArduinoGeneral

Accuracy of URM07 ultrasonic sensor

userHead Account cancelled 2019-10-21 20:44:21 1940 Views2 Replies
Dear DFrobot-Fellows,

I have purchased following ultrasonic range sensor and would like to use it for prototyping:
https://www.dfrobot.com/product-1057.ht ... ption=true

For my democase, I would like to measure the height of snow and I have a few questions:

1. Do you recommend temperature calibration for the speed of sound?
2. What is the exact error of the sensor. In the datasheet it reads 1% but is it relative to full scale (750cm) or relative to the reading (for 100cm=1cm error).
3. What is the radiation angle for the ultrasonic sound?
Do you have any hints on how the sensor will behave with snow, will it just work like for any other material?

Thank you!