The Electromagnetic Flow Measuring Principle

  Рет қаралды 747,771

Endress+Hauser

Endress+Hauser

15 жыл бұрын

eh.digital/2RiJxpJ - Illustration of the electromagnetic flow measuring principle.
Faraday’s law of induction states that a metal rod moving in a magnetic field induces electrical voltage. This dynamo principle also governs the way electromagnetic flowmeters work. Endress+Hauer's electromagnetic flowmeters are suited to measure all electrically conductive liquids in every industry.

Пікірлер: 158
@cyriljanda253
@cyriljanda253 2 жыл бұрын
Thanks to all these companies trying to explain how their products work. It helps me with finishing the engineering studies
@JagadeeshJage
@JagadeeshJage 6 жыл бұрын
A very nice and crisp video with good visuals. To the point. Fit to purpose. 10/10
@rendarsmith
@rendarsmith 7 жыл бұрын
This is great! I love how you guys made the 3D model to show how it works, it makes it so much easier to understand. Thank you so much for making this!
@natarajanmuthuswamy6865
@natarajanmuthuswamy6865 2 жыл бұрын
0 ooo 09n9bb9ppp
@proteusindustriesinc2637
@proteusindustriesinc2637 7 жыл бұрын
Amazing description through great animation!
@user-jk8kj4ri3x
@user-jk8kj4ri3x 12 жыл бұрын
excellent explanations, I like, perfect illustration for clients. Thanks from Kyrgyzstan
@gauravsinhparmar3283
@gauravsinhparmar3283 5 жыл бұрын
A best animation And Instrument video...thanks, to share this Info on Electromagnetic Flow meter.✌️
@rameshpm1978
@rameshpm1978 11 жыл бұрын
Great contribution by EndressHauserAG. I am impressed. Please continue your contributions to the society!
@kirtanbhatt7854
@kirtanbhatt7854 3 жыл бұрын
Such a wonderful animation :) Thanks EH 🤝
@gunduzosmanli1685
@gunduzosmanli1685 5 жыл бұрын
You are extraordinary!!!! I am very very grateful!! Thank you, Sir! Thank you!
@Thebassmark
@Thebassmark 3 жыл бұрын
Great animation! Should work as the leading example for educational videos!
@nnaemekaeze2498
@nnaemekaeze2498 7 жыл бұрын
Incredible with very good visuals.
@snowylau9328
@snowylau9328 4 ай бұрын
Thank you so much! Just reading the explanation through words and documents confused me so your KZfaq video really helped!
@ZsoltPinters
@ZsoltPinters 7 жыл бұрын
Awesome animation, thanks!
@mespritneel8354
@mespritneel8354 7 жыл бұрын
this is so beautiful, thanks a lot
@MrYudi-hw5so
@MrYudi-hw5so 6 жыл бұрын
your video make me Understand about electromagnetic flow meter. thanks
@omarickamalov9212
@omarickamalov9212 12 жыл бұрын
thanks from egypt , wonderful explanation
@NAKIOTOKENZI
@NAKIOTOKENZI 6 жыл бұрын
Very nice explanation with good animation.
@quanhoalu
@quanhoalu 7 жыл бұрын
this video very nice explanation and good animation and very help full
@mdaqsamkhan1009
@mdaqsamkhan1009 4 жыл бұрын
Thank you sooo much sir for this extra ordinary effort
@bhagyeshmodi2111
@bhagyeshmodi2111 8 жыл бұрын
very nice explanation with good animation...👍
@JanSefari
@JanSefari 10 жыл бұрын
Great effort and explination!
@CHzwaves
@CHzwaves 4 жыл бұрын
Nice Explanation and Nice Animations!
@amandatotarelli14
@amandatotarelli14 3 жыл бұрын
perfeito, excelente explicação. Obrigada pelas informações. sz
@anthonyforbes7957
@anthonyforbes7957 6 жыл бұрын
Thank you. Very informative.
@huaianaquilamachinery7668
@huaianaquilamachinery7668 5 жыл бұрын
very nice explanation with good animation
@rakkanthi
@rakkanthi 2 жыл бұрын
Awesome presentation
@jonatan.d.ruiz.t.
@jonatan.d.ruiz.t. 6 жыл бұрын
Excelente información!
@mitchellsteindler
@mitchellsteindler 2 ай бұрын
Great explanation!
@tagoreji2143
@tagoreji2143 4 жыл бұрын
Thank you Sir for the video. The animation is very good
@comforttapiwachamaonde2647
@comforttapiwachamaonde2647 6 жыл бұрын
Great explanation.
@GHULAMABBAS-kx7nw
@GHULAMABBAS-kx7nw 5 жыл бұрын
Amazing explanation
@flowmeters-tx
@flowmeters-tx 11 жыл бұрын
For sure a great effort.
@bomabali
@bomabali 13 жыл бұрын
wonderful illustration
@jonessmith9769
@jonessmith9769 11 жыл бұрын
understanding increased by this video.
@shahnawazhussain4842
@shahnawazhussain4842 4 жыл бұрын
Awesome explaination thank you
@ronhumiston3418
@ronhumiston3418 6 жыл бұрын
very informative, nice animation
@aadithyasathiamurthy7167
@aadithyasathiamurthy7167 2 жыл бұрын
yo youre just straight up awesome
@totoilongo6132
@totoilongo6132 6 жыл бұрын
Thank you additional knowledge
@automation5252
@automation5252 6 жыл бұрын
Well explained... Thanks
@abdulsaboorkhan1365
@abdulsaboorkhan1365 4 жыл бұрын
Now i get a concept how flow meter works
@ranjithr7718
@ranjithr7718 6 жыл бұрын
wonderful animation
@TiberiusStorm
@TiberiusStorm 5 жыл бұрын
Amazing!
@jayaramantv
@jayaramantv 14 жыл бұрын
Excellent explanation...
@MD-cd7em
@MD-cd7em 4 жыл бұрын
CLEAR VIDEO..THANKS
@imailpradeep
@imailpradeep 11 жыл бұрын
excellent video thanks
@creativeeee
@creativeeee 3 жыл бұрын
nice and so informative video
@984998491
@984998491 9 жыл бұрын
nice explanation..........
@brofenix
@brofenix 4 жыл бұрын
Very good explanation :) I didn't understand though what charged particles would be in water; I'm assuming hydronium and hydroxide ions and we assume they are randomly evenly distributed in the water?
@hopetrunks9
@hopetrunks9 2 жыл бұрын
Instant subscribed
@shubhamdubey3585
@shubhamdubey3585 4 жыл бұрын
Very help full for me
@momenshtayeh67
@momenshtayeh67 2 жыл бұрын
thanls for making my life easier
@moatezmozakas4231
@moatezmozakas4231 10 жыл бұрын
Great !
@AsadPassionateEngineer
@AsadPassionateEngineer 2 жыл бұрын
💖 This is an inspiration for ME !! Even I make "INSTRUMENTATION VIDEOS". I hope I can emulate your presentation skills. All the best for your future videos ☺
@kunjal96
@kunjal96 8 жыл бұрын
great animation ....concept clear in just 4 min..great
@ishwarsonawane3314
@ishwarsonawane3314 6 жыл бұрын
Kunjal Brahmbhatt barobar
@GauravGupta-pb8mk
@GauravGupta-pb8mk 3 жыл бұрын
Thank you sir
@tdilleshwarrao1997
@tdilleshwarrao1997 5 жыл бұрын
Good video
@raviverma3122
@raviverma3122 3 жыл бұрын
Nice video
@ee913vinaykumar2
@ee913vinaykumar2 5 жыл бұрын
its good please also make video on electrical instrument please please sir
@melkamubekele3758
@melkamubekele3758 3 жыл бұрын
great!
@bhagwansinghlodha939
@bhagwansinghlodha939 4 жыл бұрын
Very good
@mechseca2755
@mechseca2755 8 жыл бұрын
thank u
@tritranquoc8850
@tritranquoc8850 11 жыл бұрын
fabulous
@josuaritter6167
@josuaritter6167 9 жыл бұрын
@Jeston: Electromagnetic Flowmeters are absolutely suitable for milk (conductivity of milk 4 to 6 mS/cm). A hygienic version is often required (EHEDG/3A)
@udaynarayanpan6704
@udaynarayanpan6704 Жыл бұрын
Transcript of the video: Basic physics of this principle can be traced back to the English physicist Michael Faraday. Two field coil is located in each electro magnetic flow meter. These coils generate a constant magnetic field over the entire cross section of the measuring tube. Two electrode which can pick up electrical voltages are installed at a right angle in the wall of the tube. If there is no gas/liquid flow, no induce electrical voltages measured at first between the two electrodes. The electrically charged particles of the conductive liquids/gas are evenly distributed. Shown here in red and blue particles. However, as soon as the liquid starts to flow in the measuring tube magnetic field applied a force to the charged particles as a results the positively and negatively charged particles in the liquid are separated and collect on the opposite side of the tube wall. Now an electrical voltage forms which is detected and measured by the two electrodes. This voltage is directly proportional to the flow velocity on the pipe line together with the known tube cross section the flow volume can then be calculated. The greater the flow velocity, thus the separations of the charge particles greater the electrical voltage between the electrodes. The electrodes also detects what is called interference voltage. Which has to be separated from the actual measuring signal. One method that has been successfully used for this purposes to create the magnetic field with a pulse direct current, to do so the polarity of the magnetic field is alternately reversed, illustrated here in slow motion. Voltage pick up on the measuring electrode now constantly changes in polarity. As a result all constant interference voltages can be eliminated. For example: electrochemical effect on the liquid or external electromagnetic field. Thus, the size of such interference has no impact whatsoever on the actual measuring signals. The advantages of this are a stable measurements and a stable system zero point.
@endresshauser
@endresshauser Жыл бұрын
Thank you for your comment. To see the complete transcript, please enable the subtitles/closed captions function of this video or open the transcript pane by clicking on the three dots and “show transcript”.
@hondasiti404
@hondasiti404 11 жыл бұрын
i have experience working with E&H flowmeter.. Great products!!
@satishpal5164
@satishpal5164 4 жыл бұрын
Could explain me in detail all the process plzz
@hannakhoury5787
@hannakhoury5787 3 жыл бұрын
How we can isolate the electromagnetic Flow Meter ?? I want to stop the count process
@BCSTGROUP
@BCSTGROUP 9 жыл бұрын
Study , thanks
@MrHoangsek
@MrHoangsek 11 жыл бұрын
thanks for helping me with revision for my exam
@autolancegega599
@autolancegega599 4 жыл бұрын
I am looking for a flow meter in a vacuum sewage system, Since there is Sewage slurry, the conveying air in the pipe i want to determine if there is only air in the system, creating an alarm for a vacuum leak.
@nileshparmar2561
@nileshparmar2561 4 жыл бұрын
Sir can you please tell me from where I can learn animation making just like you did here ??
@javonf1
@javonf1 12 жыл бұрын
does this work for laminar and turbulent flows?
@kunjal96
@kunjal96 8 жыл бұрын
thank u....
@khanderaomali
@khanderaomali 3 ай бұрын
@user-dq2fd2wo9g
@user-dq2fd2wo9g 2 жыл бұрын
كنير عم يجنن شرحلك كتير عم احب اشكرك بليز تقبل الشكر بليز فكككك يووووووور قراند فاذر اششششش شارب
@hussainaliansiran5762
@hussainaliansiran5762 Жыл бұрын
god bless u
@frankservant5754
@frankservant5754 4 жыл бұрын
So the flow rate depends on what substance (liquid) is flowing through the pipe right?
@endresshauser
@endresshauser 4 жыл бұрын
As long as the medium (liquid) is above a minimum conductivity level, the flow rate measured is directly proportional to the velocity of the medium flowing through the meter. There are of course some aspects to be considered when selecting and sizing an electromagnetic flowmeter for a specific measuring purpose including the properties of the medium.
@josuaritter6167
@josuaritter6167 8 жыл бұрын
@David: Faraday’s law of electromagnetic induction is the basic principle of any EMF. A voltage is induced if an electric conductor is moved through a magnetic field. Instead of a wire moved within a magnetic field formed by a permanent magnet, a conductive liquid passes through an alternating magnetic field generated by coils. If there is no movement, no voltage is induced (this are not particles, this is the induced voltage). The EMF’s is capable to measure the flowrate in both directions. Based on the polarity of the induced voltage one can detect the flow direction.
@PWFSeattle
@PWFSeattle 7 жыл бұрын
No, the principle at work here is the Hall effect, not the Faraday effect. There is no electromagnetic induction since the fields are static (except for the reversals).
@ruiilhavo9034
@ruiilhavo9034 6 жыл бұрын
Is it safe and reliable install an electromagnetic flow meter,next to one water pump? Thank you
@cqueirozzz
@cqueirozzz 6 жыл бұрын
@Rui Ilhavo - To keep the instrument performance and reliability is recommended to install the flowmeter >5DN inlet and >2DN outlet runs. There is one option for Promag 400 that it's possible to have 0 inlet and outlet runs but only for 90ºangle turns, nevertheless, with this option you have to consider pressure lost in the meter. Regarding safety depends how you support the instrument mechanically, please be aware of vibrations on the pipe.
@rjaganmohanrao
@rjaganmohanrao 6 жыл бұрын
The flow meter is mounted 5 pipe diameter from the pump or any bends, 10 pipe diameters downstream of pipe should not have any bends. This to avoid turbulance in the flowing fluid.
@obourevans8811
@obourevans8811 5 жыл бұрын
Would you say that the hall effect principle is applied here since a magnetic field is placed perpendicular to flow and charges are displaced sideways
@endresshauser
@endresshauser 5 жыл бұрын
The hall effect is created though a permanent magnet where the measured voltage is proportional to the field strength. With the magnetic-inductive measurement principle, a constant field strength is created and through the flow velocity (of an conductive liquid) a voltage is induced. The voltage induced is proportional to the flow velocity and is supplied to the amplifier by means of two measuring electrodes. Difference is therefore that the inductive measurement principle needs moving charge carriers in the magnetic field.
@obourevans8811
@obourevans8811 5 жыл бұрын
@@endresshauser thanks for the reply.Much appreciated
@hkkhgffh3613
@hkkhgffh3613 5 ай бұрын
Wickid! Almost a kinda Hall sensor
@pedrool2041
@pedrool2041 Жыл бұрын
Fabio timbo matando noix
@ericldeleonruiz6851
@ericldeleonruiz6851 7 жыл бұрын
What is used to distribute the magnetic field vertical?? 1:34
@endresshauser
@endresshauser 7 жыл бұрын
The orientation of the magnetic field is defined by the placement of the coils and the electrodes. Normally the electrodes are positioned at a 90° angle to the coils (ringcore coils).
@vongdeuannila
@vongdeuannila 8 жыл бұрын
interesting electro flowmeter
@waterlarge420
@waterlarge420 7 жыл бұрын
We can provide you more regarding electromagnetic flow meter, contact me via tonybae@163.com
@elmonodev8611
@elmonodev8611 11 жыл бұрын
por Dios muy buen video pero pongalo en español
@williamkelly682
@williamkelly682 7 жыл бұрын
will the electrodes detect induced voltage if they're outside the pipe?
@josuaritter6167
@josuaritter6167 7 жыл бұрын
Its depending on the measuring principle. In case of the mentioned System in the movie, electrodes need to be connected with the medium.
@erenay5088
@erenay5088 6 жыл бұрын
can i use this to get measurement from partially filled (pressurized air and liquid) pipe?
@endresshauser
@endresshauser 6 жыл бұрын
@eren ay: as shown on the video, the flowmeter measures the voltage on the electrodes which is linear to the flow velocity. So by knowing the flow velocity and the cross section of the flowmeter, the electronics calculates the flow rate. This measurement is correct as long as the pipe is full. The moment the pipe is not full, the flow rate cannot be calculated accurately anymore, as the meter does not know how much liquid and how much air is in the pipe. As long as the measuring electrodes are in contact with the liquid, the meter will measure the velocity and calculate the volume on full pipe conditions. For this reason, we have implemented in the unit a non-full-pipe detection, i.e. the moment there is air on top of the meter and the so called EPD electrode is no longer in touch with the fluid, the meter will display an alarm so that the user is aware that his measurement will not be correct anymore. The moment the fluid is below the electrodes, there will be no measurement at all anymore.
@erenay5088
@erenay5088 6 жыл бұрын
First of all, thank you for your reply. So, do you have any product to measure partially filled pipe? I saw some ultrasound tech. but they are running at normal pressure such as sanitary systems.
@endresshauser
@endresshauser 6 жыл бұрын
None of the classical flowmeters can be used for partially filled pipes unless they're designed for this typical application and described accordingly. Usually it makes more sense to find a solution in installation to keep the pipe always full rather than to use a flow meter for partially filled pipes. The reason is with the measuring uncertainty. A flow meter for partially filled pipes does always offer an increased uncertainty compared to flow meters for full pipes. That's why only few flow meters for partially filled pipes can be found. Suggestions for modifying installation in order to keep the pipe full can be given if you contact our office/representative in your country.
@erenay5088
@erenay5088 6 жыл бұрын
Again thank you for your kind replies and suggestions.
@khangtruong9300
@khangtruong9300 8 жыл бұрын
In case of more bubbles in liquid, Will this flowmeter work correctly?
@tobiasvanderzwan5195
@tobiasvanderzwan5195 8 жыл бұрын
+Kháng Trương That's why it's installed vertical
@umairahmed5835
@umairahmed5835 5 жыл бұрын
What, if the there is no flow but conductive fluid is still filled in it, will it show the output? if not why?
@endresshauser
@endresshauser 5 жыл бұрын
If the pipe is full with liquid but no flow, the output will show value zero.
@juancarlosvargas7279
@juancarlosvargas7279 8 жыл бұрын
Como se llama el inventor Suizo? No logro entender bien su nombre, Gracias
@ttdu81
@ttdu81 7 жыл бұрын
Father Bonaventura Thurlemann
@spiderx01
@spiderx01 2 жыл бұрын
Hello, i want ask how is measured the voltage? I particularly understand that positive particles are sent to one electrode and negative particles are sent do another electrode, so electrons are sent to one conductor and to the another conductor is sent what? I don't understand what determines that one electrode is anode and another electrode is cathode. Is there any diode behind the electrode?
@endresshauser
@endresshauser 2 жыл бұрын
Thank you for your question. Generally, the potential difference between the measuring electrodes is evaluated by state of the art electronics and filters in the sensor and transmitter of electromagnetic flowmeters. For further technical details please visit our website: eh.digital/proline-promag.
@spiderx01
@spiderx01 2 жыл бұрын
@@endresshauser thank you for information
@samuelsungstabtu7527
@samuelsungstabtu7527 12 күн бұрын
Assuming the liquid flowing is corrosive, will the electrode experience corrosion or are the epectrodes electrically isolated from the flowing liquid as well?
@endresshauser
@endresshauser 20 сағат бұрын
Thank you for your question. Electromagnetic flowmeters are not electrically isolated from the flowing media. Depending on the medium, a different electrode material must be selected. Endress+Hauser offers stainless steel, alloy C22, tantalum, platinum, and titanium, which can be used to prevent corrosion by the medium.
@onesteptowardssuccess9928
@onesteptowardssuccess9928 2 жыл бұрын
This is same function as QUADRUPOLE in mass spectrometry
@izmirfication
@izmirfication 2 жыл бұрын
Magnetic force is applied to particles to a single electrode, how are the oppositely charged ions goes to opposite side electrode as blue and red opposite charged ions separated ?
@endresshauser
@endresshauser 2 жыл бұрын
A conductive liquid contains positive and negative ions. As soon as the liquid starts to flow, the movement of the ions through the magnetic field results in a force on the ions, this is Faraday's law of induction. The force is proportional to the charge and causes the positive and negative ions to separate, depending on their charge. For illustration purposes, this process is shown strongly exaggerated in the animation.
@mahmood964
@mahmood964 9 жыл бұрын
This technology is used for all types of water such as fresh, effluent, and (seawater) cooling. But its not suitable for measuring non conductive fluids such as hydrocarbons.
@vasanthkumar-zy4yg
@vasanthkumar-zy4yg 2 жыл бұрын
What is the out put of flow meter mA/v
@endresshauser
@endresshauser 2 жыл бұрын
Our electromagnetic flowmeters offer a wide selection of output possibilities covering analogue to digital as well as multiple and configurable outputs including 4 to 20mA. Find out more about our flowmeters and their respective outputs here eh.digital/3OnblHA
@wxz177
@wxz177 8 жыл бұрын
SO the electrodes are instales inside?
@waterlarge420
@waterlarge420 7 жыл бұрын
Yes, you can google.
@rjaganmohanrao
@rjaganmohanrao 6 жыл бұрын
cable from electrodes mounted inside are taken to the meter box located at certain distance. In side the meter box electronic ciruit takes care of amplification of low level signal and signal conditioning will be done. Later to dispay unit. It can be inside the meter box or a DCS system.
@night3x
@night3x 10 жыл бұрын
But in this case voltage is also proportional to fluid ph??
@LucasLatrova
@LucasLatrova 8 жыл бұрын
There is no reference pH liquid to compare with. So, no.
@derricktan3492
@derricktan3492 5 ай бұрын
please explain why there is no voltage induce if there is no flow? Thanks
@endresshauser
@endresshauser 5 ай бұрын
Thank you for your question. An electromagnetic flowmeter operates based on Faraday's law of electromagnetic induction. According to this law, a voltage is induced in a conductor moving through a magnetic field. In the case of an electromagnetic flowmeter, the conductor is the conductive fluid flowing through the pipe, and the magnetic field is generated by coils surrounding the pipe. When there is no flow, there is no movement of the conductive fluid through the magnetic field. As a result, no voltage is induced in the fluid. In other words, the absence of flow means there is no change in magnetic flux, which is essential for inducing a voltage.
@mata7648
@mata7648 5 жыл бұрын
I always think the measurement will depend on the conductivity of the fluid. cleary not.
@rexdxaiver5778
@rexdxaiver5778 4 жыл бұрын
How to troubleshoot if have no reading?
@endresshauser
@endresshauser 4 жыл бұрын
You may contact your local technical support or download manuals on www.endress.com
@ravirao5700
@ravirao5700 5 жыл бұрын
Wondering how many EE/PE engineering students landed here while studying for end sem GTU exams...
@TiberiusStorm
@TiberiusStorm 5 жыл бұрын
I'm studying Instrumentation & Control Engineering and I love these videos! They're so much easier to comprehend compared to the annoying teachers who go on and on ad nauseam without really simplifying the information.
@hardikpatel8149
@hardikpatel8149 3 жыл бұрын
Does it also measure air flow ?
@endresshauser
@endresshauser 3 жыл бұрын
Dear Hardik Patel, electromagnetic flowmeters measure conductive fluids. For air flow measurement, feel free to have a look at thermal, vortex, Coriolis or ultrasonic measurement devices.
@hardikpatel8149
@hardikpatel8149 3 жыл бұрын
@@endresshauser Thanks for your suggestion
@hardikpatel8149
@hardikpatel8149 3 жыл бұрын
@@endresshauser in our plant, coriolis flow meter is connected in palm oil and syrup line, so it's not showing accurate results, air flow in before fluids flow due to empty line. And also show reading without fluids flow. Does it good choice to use electromagnetic flow meter.?
@endresshauser
@endresshauser 3 жыл бұрын
​@@hardikpatel8149 for a particular application we'd kindly ask you to contact your local Endress+Hauser support. There you'll find best assistance for the tailored solution. The contact details can be found here: www.endress.com/en/contact
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