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About eco delay in PING ultrasonic — Parallax Forums

About eco delay in PING ultrasonic

pumajupumaju Posts: 9
edited 2008-07-20 18:39 in Robotics
hi,

i have a PING ultrasonic
i want to know what is the relation between delay eco (in microseconds) with distance (in cm)??

for example if i received a delay eco of 1000 us, how many centimeters are??

thanks

Comments

  • pumajupumaju Posts: 9
    edited 2008-07-20 17:17
    i had probe divided for 29, for example

    100 us / 29 = 34.5 cm

    but i had have better result with a value of 60, but with this value, if distance is less than 10 cm, the measurement is OK, but if distance increase then the measurement is not exactly (error is about 5cm!!)
  • iDaveiDave Posts: 252
    edited 2008-07-20 18:39
    If you go to the download section and get the ping manual it goes into detail on all that

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    "THE ONLY TRUE WISDOM IS IN KNOWING YOU KNOW NOTHING." - SOCRATES
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