PSN-L Email List Message

Subject: Re: Omnidirectional instrument
From: chrisatupw@.......
Date: Fri, 4 Jan 2013 13:44:45 -0500 (EST)


From: Tangazazen 

To: psnlist 
Sent: Fri, 4 Jan 2013 16:30
Subject: Re: Omnidirectional instrument


Hi All,
     Incidentally, if you modulate the LED with a sine wave and sum the out=
put of the two photo detector, this can be used to stabilize the LED amplit=
ude which renders it insensitive to temperature.
 Martin
=20
     Excellent point !=20
    Chris

=20
=20
From: Tangazazen <Tangaz=
azen@.......>
To: psnlist <psnlist@..............>
Sent: Fri, 4 Jan 2013 16:30
Subject: Re: Omnidirectional instrument

Hi All,
     Incidentally, if you modulate the LED with a = sine wave=20 and sum the output of the two photo detector, this can be used to stabilize= the=20 LED amplitude which renders it insensitive to temperature.
 Martin
 
     Excellent point !
    Chris
 

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