From: TangazazenTo: 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.MartinExcellent point !
Chris