[Test-Equipment] bolometer

[Richard Knoppow]

----- Original Message ----- 
From: "Glenn Little WB4UIV" <glennmaillist at bellsouth.net>
To: <test-equipment at mailman.qth.net>
Sent: Monday, June 01, 2009 1:03 PM
Subject: [Test-Equipment] bolometer


>I have a number of nos bolometers that I do not know what 
>they are for.
> They are part number DWB450-200 and NSN 6625-00-127-7754.
> The cage code, 21845, indicates that this was made by 
> Solitron.
>
> Does anyone have any information on this bolometer?
>
> Thanks
> 73
> Glenn
> WB4UIV
>
>
     A Google search will find a good deal of infomation 
about bolometers and their uses. They are often used to 
measure high frequency radio energy but are also used in 
more exotic applications. Bolometers are of two general 
types, baretters and thermistors. The difference is the sign 
of the temperature co-efficient. A simple small fuse can be 
used as a baretter.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com