Mailing List Archive Mailing List Archive
JJohn wrote: > > >> O2 sensors are used in mining operations. See what you can track > >> down of what miners use locally. > >No mines down here <gosh> > I think tunnel builders too use O2 sensors to check if the > crew can breath safely :-). > > >Oh, Mini-Ox brochure states 2%, did you have any personal > >experience of Mini-Ox failure? > Nope, my knowledge of Mini-Ox is second hand - some > of it posted to techdiver. People were complaing. > > >Who's the manufacturer of PDS-1? > Pequoit Diving Services. > > >Can you tell me the Tipe of sensor? > Affordable O2 sensors are probably all of the galvanic cell > type. The differences are in how it's built. > > PDS-1: Galvanic fuel cell w/ Pb anode, Au plated cathode > and Potassium Hydroxide electrolyte. Thermal compensation > with 1k thermistor. > > I have never heard of the > >FIGARO ENGINEERING the KE-25 O2 sensor > I'm not able to rate it relative the three sensors > I mentioned. > > [Meter]: > >Did you use a pre assembled unit? > No. I didn't like the cost of the pre-assembled unit :-). > You basically get AX+B out from the sensor (X being some > measure of the concentration of O2 in the sensor). > The meter interface subtracts B' and then amplifies the result > by C. If B' = B I can vary C so that readout is in %O2 = C A X. > B' and C are adustable. > > >Do you think our post will be of any interest on the techdiver list? > Sure, ask the list for it's opinion at large. You'll get feedback :-). > > John OK this is a little part of what John is sharing with me about O2 meter, and obviously what kind of sensor and electronics to use for it and why. Any sugestion? Roberto
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]