Use of Ultrasonic sensor for measuring distance........
Discussion in "Project Doubts" started by akshaydusane Sep 10, 2012.
Tue Jan 22 2013, 12:28 am
What should be the duration of pulse according to you ?
I assume you are now using a HC-SR04 not the original GH311
distance = (high level timeÃ—velocity of sound (340M/S) / 2,
By my calculations..
For an object 10cm away the pulse is 0.58 mS (580 uS).
For an object 4m away the pulse is 23.5 mS.
Over 4 metres (out of range),or no object present the pulse is over 23.5 mS.
With no object present the pulse is probably not more than 50mS.
[ Edited Tue Jan 22 2013, 12:33 am ]
[ Fresher ]
Thu Jan 24 2013, 04:37 pm
According to you the delay of the pulse should be 23.5 ms....
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