Forum: Geothermal & Heat Pumps
12-17-13, 12:31 PM
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Replies: 45
Views: 25,929
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Forum: Geothermal & Heat Pumps
12-17-13, 11:24 AM
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Replies: 45
Views: 25,929
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Forum: Geothermal & Heat Pumps
12-17-12, 09:02 AM
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Replies: 45
Views: 25,929
I hate weevils
Wow, that sounds pretty nice! (Except for the 'Red palm weevil')!
Today we've got snow, rain & ice all over the place.
Ever since the day I slipped on ice and destroyed my right ankle, ice...
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Forum: Geothermal & Heat Pumps
12-16-12, 04:59 PM
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Replies: 45
Views: 25,929
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Forum: Geothermal & Heat Pumps
11-25-12, 10:19 PM
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Replies: 45
Views: 25,929
Mike wrote:
"With forced air HPs, the interior...
Mike wrote:
"With forced air HPs, the interior air often got too cold as the heat from indoors was used to defrost the coil, so finding ways to minimize it is important."
The Sanyos (and other...
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Forum: Geothermal & Heat Pumps
10-20-12, 10:45 AM
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Replies: 45
Views: 25,929
950 nm
That Sanyo is in the open, but it's installed next to a wall and there is no way
that direct sunlight could get back there and into the sensor.
Sanyo #2 is on the north side of the house and it's...
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Forum: Geothermal & Heat Pumps
10-20-12, 10:22 AM
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Replies: 45
Views: 25,929
tested in dark conditions and under hazy sunlight
Hooked up the voltmeter to the signal output and found there wasn't very
much interference from hazy sunlight directly on the sensor.
I believe the sensor lens would have to be aimed directly at...
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Forum: Geothermal & Heat Pumps
10-19-12, 09:55 PM
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Replies: 45
Views: 25,929
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Forum: Geothermal & Heat Pumps
10-19-12, 08:00 PM
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Replies: 45
Views: 25,929
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Forum: Geothermal & Heat Pumps
10-19-12, 02:39 PM
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Replies: 45
Views: 25,929
TCRT5000 part test
I used the humidity input on the CAI board to read the optical detector with the circuit above.
The range using a mirror was about 2.25". When I inserted foggy plastic
between the mirror and...
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Forum: Geothermal & Heat Pumps
09-29-12, 12:18 PM
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Replies: 45
Views: 25,929
I wasn't able to find much info on the Debron...
I wasn't able to find much info on the Debron 1052 Optical Sensor,
But, it's a good example of an emitter-detector open-gap sensor.
These sensors are commonly used to detect solid material...
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Forum: Geothermal & Heat Pumps
09-29-12, 09:41 AM
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Replies: 45
Views: 25,929
Optical detector 'optical frost sensor'?
For my systems, I would need a detector to work down to -15 C, so measuring temperatures to detect ice would be difficult.
But seeing ice isn't hard at all. :)
Here are two examples.
Frost...
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