electrical conductance - Electronic Circuits Projects Diagrams Free

xcidu · 17th November 2003, 07:50 PM

hi xcidu here first time hi all 8)
:roll: dose anyone have any info schematic diagrams ect for a electrical conductivity meter used to measure the electrical conductance of a soultion also any info on PH meters
thx

Exo · 17th November 2003, 11:28 PM

measuring electrical conductance ... I would use a resitance meter for that

Phasor · 18th November 2003, 06:52 AM

I'm not sure what system commercial pH meters use, but I do know that you have to be careful not to apply too much voltage across your electrodes, otherwise you can cause unwanted chemical reactions to occur...

laroche73 · 18th November 2003, 12:55 PM

Take a look at the 3rd circuit, "Circuit provides constant current for ISFETs/MEMFETs"

http://www.e-insite.net/ednmag/conte...s/102600di.pdf

17th November 2003, 07:50 PM	#1 (permalink)
xcidu New Member Join Date: Nov 2003 Posts: 1	electrical conductance hi xcidu here first time hi all 8) :roll: dose anyone have any info schematic diagrams ect for a electrical conductivity meter used to measure the electrical conductance of a soultion also any info on PH meters thx

18th November 2003, 12:55 PM	#4 (permalink)
laroche73 Experienced Member Join Date: Aug 2003 Location: Ann Arbor, MI Posts: 414	pH Take a look at the 3rd circuit, "Circuit provides constant current for ISFETs/MEMFETs" http://www.e-insite.net/ednmag/conte...s/102600di.pdf

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17th November 2003, 11:28 PM	#2 (permalink)
Exo Experienced Member Join Date: Sep 2003 Location: Belgium Posts: 1,881	measuring electrical conductance ... I would use a resitance meter for that

18th November 2003, 06:52 AM	#3 (permalink)
Phasor Experienced Member Join Date: Aug 2002 Location: Sydney, Australia Posts: 698	I'm not sure what system commercial pH meters use, but I do know that you have to be careful not to apply too much voltage across your electrodes, otherwise you can cause unwanted chemical reactions to occur...