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<p>DPRG<br>
</p>
<p> "The Time-of-Flight (ToF) sensor measures the distance by
calculating the time taken by a light pulse to travel from the
source to the observed target and then return to the detector. The
following formula calculates the flight time: </p>
<p> Distance value = Photon travel time/2 x the speed of light"</p>
<p>Is that really true? Speed of light is about a foot per
nanosec. So measuring an object 10 feet away should take 20
nanosecs. None of these TOF sensors have that sort of response.
I thought they were measuring phase differences in a group of
pulses, or something like that, and doing it over and over to get
a reliable reading. <br>
</p>
<p>From the article: "The timing budget is around 12mS per sensor
‘zone,’ which would equate to a total sweep time of approximately
160mS, giving a frame rate of a little more than 6 FPS."</p>
<p><br>
</p>
<p>dpa</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 4/25/22 3:13 PM, Doug Paradis via
DPRGlist wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOdUW+Zk-PPC7G3PO=UuzfFNhMOHK_nB6MpCgXyshWoNQaMTCA@mail.gmail.com">
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<p style="background-color: #f4eaa5;color: #000000
;margin:5px;padding: 2px;text-align: left !important;
align-content: center; display: block; border: 1px solid
#000000; font-size: large; font-family: sans-serif;"><strong><em
style="font-size: 11px;"> [EXTERNAL SENDER]</em></strong></p>
<div dir="ltr">-All,
<div> This might be of interest to you: <a
href="https://www.newark.com/how-to-implement-2d-lidar-using-time-of-flight-sensors"
moz-do-not-send="true">https://www.newark.com/how-to-implement-2d-lidar-using-time-of-flight-sensors</a></div>
<div><br>
</div>
<div>Regards,</div>
<div>Doug P.</div>
</div>
<br>
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