Tasks Accomplished Jan31

[Joyce Poon <poonj@ecf.utoronto.ca>]

I did the following yesterday:

	built some more amp./filter stages & tested sensor circuit
	found that the range is really small & the angle of detection is
really narrow
	try to improve sensor range with min success

Plans:
	will ponder more on sensors in the next few days
		(I might have come up w/ a scheme to use transistors as
switches for the sensors -- this should lower the cost of the circuit &
make the timing easier for tim; I'll try simulating it on PSpice.)

Joyce :)