Published:2009/6/23 3:37:00 Author:Jessie | From:SeekIC
The drain-to-source resistance of Q1 varies depending on the acidity of the sample presented to Q1's gate circuit. That variable resistance varies the current flowing through the bridge; that current is proportional to pH.
Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Audio_Circuit/Other_circuit/ACID_RAIN_MONITOR.html
Print this Page | Comments | Reading(3)
Code: