In the current industrial environment, the content of oxygen plays an important role in industrial production, so it is often measured. There are various products on the instrument market, but in terms of measurement principles, there are mainly 2 measurement methods:
(1) Thermal magnetic oxygen analyzer
The principle is to use the physical characteristics of the high magnetic susceptibility of oxygen in the flue gas components to determine the oxygen content in the flue gas. Oxygen is a paramagnetic gas (the gas that can be attracted by a magnetic field is called a paramagnetic gas). It is attracted in a non-uniform magnetic field and flows to a strong magnetic field. There is a heating wire here, so that the temperature of oxygen here increases and the magnetic susceptibility decreases, so the magnetic field attraction is reduced, and the magnetic field is pushed out by the unheated oxygen molecules with higher magnetic susceptibility. The phenomenon of “thermomagnetic convection” or “magnetic wind”. Under a certain pressure, temperature and flow rate of the gas sample, the oxygen content in the gas sample can be measured by measuring the size of the magnetic wind. Since the thermistor (platinum wire) acts as the resistance of the two bridge arms of the unbalanced bridge and the heating resistance wire, the temperature gradient appears under the action of the magnetic wind, that is, the temperature of the inlet side bridge arm is lower than the outlet side bridge The temperature of the arm. The unbalanced bridge will output the corresponding voltage value according to the oxygen content in the gas sample.
(2) Zirconia sensor type oxygen analyzer
Zirconium oxide (ZrO2) is a ceramic, a solid with ionic conductivity. It is a monoclinic crystal at normal temperature. When the temperature rises to 1150°C, the crystal form changes to cubic crystals with a volume shrinkage of about 7%; when the temperature decreases, it becomes a monoclinic crystal. If heating and cooling are repeated, ZrO2 will crack. Therefore, pure ZrO2 cannot be used as a measuring element. If a certain amount of calcium oxide (CaO) or yttrium oxide (Y2O3) is added to ZrO2 as a stabilizer, and then calcined at a high temperature, it becomes a stable zirconia material. At this time, the tetravalent zirconium is replaced by divalent calcium or The trivalent yttrium replaces and simultaneously generates oxygen ion holes, so ZrO2 is an anionic solid electrolyte. ZrO2 conducts electricity mainly through the movement of holes. When the temperature reaches above 600°C, ZrO2 becomes a good oxygen ion conductor.
A platinum electrode is sintered on both sides of the zirconia electrolyte. When the oxygen partial pressures on both sides of the zirconia are different, the oxygen on the side with the higher oxygen partial pressure migrates to the side with the lower oxygen partial pressure in the form of ions, resulting in the oxygen partial pressure The platinum electrode on the higher side loses electron positive charge, while the platinum electrode on the lower oxygen partial pressure gains electron negative charge, thus generating an oxygen concentration difference potential between the two platinum electrodes. This potential is only related to the difference in oxygen content (oxygen concentration difference) in the gas on both sides when the temperature is constant. If the oxygen content on one side is known (for example, the oxygen content in the air is constant), the oxygen content on the other side (for example, the oxygen content in the flue gas) can be expressed by the oxygen concentration difference potential, and the oxygen concentration difference potential can be measured to know the smoke The oxygen content in the gas.
Hello there! Would you mind if I share your blog with my zynga group?
There’s a lot of folks that I think would really enjoy your content.
Please let me know. Cheers
With havin so much content and articles do you ever run into any problems of plagorism or copyright infringement?
My blog has a lot of completely unique content I’ve either created myself or outsourced but it looks like a
lot of it is popping it up all over the web without my agreement.
Do you know any techniques to help reduce content from
being stolen? I’d really appreciate it.
What’s up mates, how is everything, and what you desire to say regarding this post,
in my view its actually awesome in support of me.
Outstanding quest there. What occurred after? Good luck!
There is definately a lot to find out about this subject. I really like all the points you made.
Hi there, just became aware of your blog through Google, and
found that it’s really informative. I am going to watch out for brussels.
I will be grateful if you continue this in future. Many people will be benefited from
your writing. Cheers!
Hey! This post couldn’t be written any better! Reading through this post
reminds me of my good old room mate! He always kept talking
about this. I will forward this page to him.
Fairly certain he will have a good read. Many thanks for sharing!
Hi there mates, pleasant piece of writing and pleasant urging commented here, I am truly enjoying by these.
I really love your website.. Great colors & theme. Did you build this web site yourself? Please reply back as I’m attempting to create my very own blog and would like to know where you got this from or what the theme is named. Thank you!
May I just say what a relief to discover someone that genuinely
knows what they’re discussing on the net. You certainly realize how to bring an issue to light and make it important.
More people ought to check this out and understand this side of the story.
It’s surprising you’re not more popular since you definitely possess the gift.
Hey there I am so excited I found your site, I really found you by mistake, while I was researching on Yahoo
for something else, Regardless I am here now and would just
like to say many thanks for a remarkable post and a all round
entertaining blog (I also love the theme/design), I don’t have time
to read it all at the minute but I have book-marked it
and also included your RSS feeds, so when I have time I will be back to read more, Please do keep up the superb work.
These lenders wikll lokk at borrowers without having any
revenue aat a greater threat.
Stop by my webb site 정부지원대출
McKinsey’s report builds on prior analysis
that found automation will threaten male-dominated industries, like trucking or manufacturing.
my web pae 이지알바
These are integral to mantaining your info secure and makes it poissible for
you tto play with confidence.
My site 토토사이트 추천
This is a jackpot that builds up more than time and then pays ouut
a massive sum of revenue to a single player.
Also visit myy page … Casino Play Online
As technologically sophisticated as the nation is, it nevertheless cannot
get fll manage of Online Casino activities.
In the complete nation, there’re only 17 physical licensed casinos.
My homepage; webpage
If you adhere to the repayment schedule, your loan will be paid in full.
my site: 소액대출
Youu can use a telephone or laptop to verify your loan eligibility, submit your KYC specifics and
apply ffor a loan, getting approval within 5 hours.
Here is my web site :: 무직자대출
Ultimate X Poker is also well-known iin California casinos,
27 oof which offer the game.
Feel free to visit my homepage … Casino Gamble
With most rewards applications the rewards boost the much more you play.
my web page – 바카라 추천
Ads promoting brick and mortar casinos and on the net gambling are not allowed.
Check out my web-site – Casino Bonus
Journalists are a well-known lot who attract a terrific deal of admiration from the masses.
Here is my website :: webpage
Advisrd if you want a British betting web sife thhat puts horse racing att the forefront of its providing.
My blog post; Online Gamble
I was working ass a digital strategist wigh Fortune 500, planet-renowned brands.
Also visit my blog post … 밤알바
Just make certain you do your due diligence and come across a sportsbook that
cater to your demands.
my webpage … Sports betting sites
They’ve partnered with Caesars in a multi-state access deal to join more states, with additional coming soon.
my page Online Betting Site
The COVID-19 crisis has noot only produced the world’s current inequalities even extra evident
it has even deepened them.
Also visit my homepage: 이지알바
You could definitely see your skills in the work you write.
The sector hopes for more passionate writers like you who are not afraid to mention how they believe.
At all times go after your heart.
Pretty! This was an incredibly wonderful article. Thank you for providing these details.
Thank you for any other informative web site. The place else could I am getting that kind of info
written in such an ideal approach? I have a venture that I am simply now operating on, and I’ve been on the
glance out for such info.
From the minute you click on aany of their live games, this higher high quality is very apparent.
My homepage – Evolution Gambling
I’ve been surfing online greater than three hours these
days, but I never found any fascinating article
like yours. It is pretty value sufficient for me. In my
view, if all site owners and bloggers made just right content
as you probably did, the internet shall be much more helpful than ever before.
I like the valuable information you provide in your articles.
I will bookmark your weblog and check again here regularly.
I’m quite sure I’ll learn lots of new stuff right here!
Good luck for the next!
Cam shows also ensures a consistent enjoy the best hairy live show experience across various devices.
If you have high cholesterol levels, you re not alone generic cialis tadalafil Superior therapies with milder adverse effects and better safety profiles have replaced it, such as beta blockers and calcium channel blockers
Hello to all, for the reason that I am in fact eager of reading this web site’s post to be updated regularly.
It includes fastidious information.
Today, while I was at work, my cousin stole my iPad and
tested to see if it can survive a 25 foot drop, just
so she can be a youtube sensation. My apple ipad is now broken and she has 83 views.
I know this is entirely off topic but I had to share it with someone!
Here is my page; vpn special code
Good blog you’ve got here.. It’s hard to find excellent writing like yours nowadays.
I really appreciate individuals like you! Take care!!
my blog … vpn 2024
I am really enjoying the theme/design of your website.
Do you ever run into any browser compatibility issues?
A handful of my blog visitors have complained about my website not operating
correctly in Explorer but looks great in Opera. Do you have any advice to help fix this
problem?
my homepage: vpn 2024
Great article! We are linking to this great post on our site.
Keep up the good writing.
Take a look at my webpage – vpn special coupon code 2024
What’s Taking place i am new to this, I stumbled upon this
I have discovered It absolutely helpful and it
has aided me out loads. I hope to give a contribution & help different users like its aided
me. Great job.
Here is my homepage: vpn coupon code 2024
Hey! Would you mind if I share your blog with my zynga group?
There’s a lot of people that I think would really enjoy your content.
Please let me know. Cheers
Stop by my web page; vpn special code
mexico drug stores pharmacies: cheapest mexico drugs – reputable mexican pharmacies online
indian pharmacy http://indiaph24.store/# top 10 pharmacies in india
best online pharmacy india