[Elphel-support] Extension of stereobase and elongation sensor's cable length

[Oleg]

> We got a good results with 0x1ff80 value for MULTI_PHASE[n] in both
> channels without changing SENSOR_PHASE.

 I would measure the range around 0x1ff80 while the image is still good,
then set the phase to the middle. For a 450mm cable the working range is
~60-100 steps.

At first we get a broken images at same manner. By the way, if we use 450
> mm cable with MULTI_PHASE = 0x1ff80 we get same problem, so MULTI_PHASE is
> strongly depends on cable length.
>
Yes - signal propagation delay.

If the experiment will give us a good results we intend to expand a
> stereobase for second setup at the same manner. In with case we will order
> to you addition cables.
> Do you offer now a sensor board (compatible with our 10359) with
> monochrome sensor? If so what type of sensor installed into such board?
>

We do have some monochrome sensor boards.
You can buy them but using a monochrome sensor reduces overall resolution
of the sensor+lens combination. And most of nowadays the applications deal
with color sensors.
So, you can:
a. Keep using a color sensor - just work with R, G and B channels
separately, then combine.
b. Get a monochrome sensor - but use a green color band filter in front of
the lens to a have better resolution.

Best regards,
Oleg Dzhimiev
Electronics Engineer
phone: +1 801 783 5555 x124
Elphel, Inc.
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