[wxqc] Rain Sensor With No Moving Parts

Victor Engel brillig at gmail.com
Tue Oct 25 10:19:08 CDT 2011


People may be interested in this paper about the sensor (I believe
it's the same).

http://www.wmo.int/pages/prog/www/IMOP/publications/IOM-96_TECO-2008/2%2811%29_Salmi_Findland.pdf

On Tue, Oct 25, 2011 at 10:10 AM, Victor Engel <brillig at gmail.com> wrote:
> I'm having trouble finding information about size. It says it ships in
> a box that's 8" by 8", though, so let's say the unit fits snuggly in
> that box and is round. Let's give 1/2 inch for the packaging. That
> leaves 7.5 inches diameter. That has an area of 285 square
> centimeters. I think they need to correct their collection area. The
> units are definitely wrong, and I suspect the area is wrong, too, if
> they intended square centimeters. That would be almost 11 inches in
> diameter.
>
> I see another problem. The wind sensors cast rain shadows on the rain sensor.
>
> Victor
>
> On Tue, Oct 25, 2011 at 10:03 AM, Paleski, Richard <paleski at kyw.com> wrote:
>> My guess is you are right about the size of the measurement area Victor. The unit we own is sizable. It is maybe 6 to 8 inches across the top.
>>
>> We don't have the rain sensor on our mobile unit but I am considering that upgrade. When we are on location, I would like to provide some sort of rain rate data for the viewers. Moreover, I thought this was a cute idea and one more cleaver measurement method out in the universe is always food for thought.
>>
>> Rich
>>
>> -----Original Message-----
>> From: wxqc-bounces at lists.gladstonefamily.net [mailto:wxqc-bounces at lists.gladstonefamily.net] On Behalf Of Victor Engel
>> Sent: Tuesday, October 25, 2011 10:51 AM
>> To: Discussion of weather data quality issues
>> Subject: Re: [wxqc] Rain Sensor With No Moving Parts
>>
>> It says "Collection Area: 602cm". That is not a unit of area.
>> Supposing they mean cm^2, that's a pretty large area.
>>
>> Victor
>>
>> On Tue, Oct 25, 2011 at 9:40 AM, Paleski, Richard <paleski at kyw.com> wrote:
>>> Hi Everyone,
>>>
>>>
>>>
>>> http://www.columbiaweather.com/Orion420.html
>>>
>>>
>>>
>>> This is the newest product from Colombia Weather Systems.
>>>
>>> They integrate an OEM / military grade weather sensor into their weather
>>> server.
>>>
>>> They measure wind speed and direction using ultrasonic sound and Doppler
>>> information.
>>>
>>> Now they have added a drum type sensor that counts rain drops as they fall
>>> onto the unit.
>>>
>>>
>>>
>>> Given the last round of rain rate calibration discussions, I thought many of
>>> you would all find this new device interesting.
>>>
>>>
>>>
>>> Best,
>>>
>>>
>>>
>>> Rich
>>>
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>


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