Basic configurations #1 - Wheatstone bridge
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- Опубліковано 2 бер 2019
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I hope you like this kind of basic tutorial about the Wheatstone bridge. Soon I'll make more about other topics. Check the links below for more information and the mathematics behind this circuit.
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-----------------LINKS-------------------
Tutorial website: www.electronoobs.com/eng_circ...
Example video with thermistor: • Wheatstone bridge exam...
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#wheatstone
#bridge
#resistance - Наука та технологія
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I understand everything
You're a go(o)d teacher! :D
Great video have watched almost all on UA-cam found this one the easiest and most practical to understand
beautiful tutorial, the formulas explained very well and simple to understand!
I was stuck on this problem for hours. Thank you for the clear explanation!
Great concise clear explanation. Loved the animations.
I was just looking for something like this but didn’t know it could be made this simple! I need to use a thermocouple to read temperature with a arduino but the resistance change over the thermocouple is too small to be noticed. Thanks and great timing :)
Thank you for saving my life with this video. Those fucking physics teachers in my country just taught me to check the ratio between the resistances of resistors without any explanations.
Your videos are so SO good and well explained! I love your style of explanation where you sandwich the theory in between practical usage and that makes it really easy to follow and understand. Thanks for making these videos!
Nice clear and concise explanation and demonstration!
Three words, clear and beautiful. Thanks!
Incredible presentation skills. Well done. 👍👍👍👍
There's a mistake on 4:43. The strain gauge resistance must be 20 ohm, just like R3, for a bridge to be balanced.
Also on 5:30, the more temperature you apply, the more resistance increases. So, for example, it must increase to 22 ohms. But you're showing that it decreases. Otherwise very good, clear explanation! Thank you, dude!
Temperature up resistance down
disagree. Seems like an important reason for why this configuration is used is to account for resistors and systems not being ideal.. Although 20 ohms may make the bridge balanced in ideal conditions, this is real life. 23 ohms might be needed to balance the circuit due to the resistors not being ideal and environmental factors such as temperature
@@clobraico_private9121 that would have been plausible if he had explained that pragmatic scenario. The explanation should stick to the theory. If you dont understand the theory you wont understand its real world effects and variations.
Resistors come in large variation of properties and not all respond the same way to changes in temperature. Look up thermistors; they come with negative (i.e. temp goes up resistance goes down) and positive (vice versa) temperature coefficients.
Now: Even resistors that aren't purpose built to respond to temperature coefficient. And whether the temperature coefficient of any given resitor is positive or negative depends on its construction and the materials its made from. Therefore the generalization "the more temperature you apply, the more resistance increases" is incorrect.
Thanks man ... You explained it like a pro
The main goal of this video is how to eliminate temperature effects from our sensors. No one of the professors on our faculty could explained like that.
thank you for explaining 5:22, was wondering that since the start of the video
but R1, R2 and R3 are not effected by the same temperature that was given to the Thermistor, so they are not all effected at the same time like you said in the minute before. how can you explain this ?
please continue to make this kind of videos.
good explanation, but you should mention that the big advantage of the wheatstone bridge is that the voltmeter actually shows the small deviation from the equilibrium and thus you can use a much more sensitive measurement range. In your example of 20 ohm resistors (quite low value by the way) if you would only measure one resistor which changes from e.g. 20 ohm to 20.2 ohm than this would only be a change of 1% seen on the last decimal on a regular multimeter. Even if you just measure the voltage on the right side, you end up with an unuseable value of just 5.02 V, also here the important information is hidden in the last digit of the multimeter. However, if you measure the difference between the two voltages, you get a value of 25 mV which you even might be able to read with an addition decimal in the millivolt range of your multimeter.
It all makes sense now, thanks for you explanation, superb. i was struggling to understand the benefits...
It was on my school syllabus... This video is for me like Back to the memory Lane.
Great video information ❤ Great discussion 💯
Thank you for sharing your knowledge ♥️🇵🇭
impressive explanation. thank you
Hey what about using just a simple voltage divider - just put the strain guage in series with another known resistor, and measure the difference in the voltage drop...? Is there any advantage over the wheatsone bridge?
Simple and easy to understand, thank you
Thank you. Finally an understandable explanation.
Very smart explanation!
thank you so much!this is the best video on wheatstone bridge
Hello ! I liked your method of explaining you do a very good job but i have a small question how a voltage divider will existe if we have spplited current i think if we you ohm lows would be more satisfying and thanks you
In my school we did it with a two resistor voltage divider. Why do i have to use a Wheatstone bridge compared to a simple two resistor voltage divider?
Hi, Which software do you use for presenting the schematics and other graphical explanation in 2D?
Thanks for explanations. Very well explained. Now I remembered what this bridge does. Keep up the good work. Salutare!
Very helpful tutorial Thank you very much
Is it possible to use this procedure, when for example Rx is a RTD (Resistance Temperature Detector) or a Potentiometer ?
thank you for all presentations
crystal clear explanation
perfect
Very nice and great explanation.
Just looking into the wheatstone bridge with a thermistor for one of my projects. Have you used this with the Arduino for temp readings? Currently I'm just using the thermistor in a voltage divider and it's quite accurate but can never have high enough accuracy right? :) if you haven't done said project, any chance?
what if the sensor changes voltage or amperage vs. resistance ?
Really great video! Thanks very much!
YOU ARE A LIFE SAVER. THANK YOU
High precision Wheatstone bridge are capable to measure the resistance between ?
Amo seus videos cara!
that was a clear explanation. thank you
Can you make a DIY 230V UPS with an integrated charger and battery level indicator for a lead-acid battery?
Nice explanation
Ammaaazing informations, this is genius, thanks a lot
very well explained
This is what I needed thank you very much
Fantastic explanation 🙏🙏🙏
Great explanation 👌🏽
Nice video mate, I liked your power supply ... Did you made it or it something available in the marketing?
Nice explanation thankyou !
Why does the voltage increase when the resistance increases?
Nice and Clear!!!
How to select the resistor values?
Excellent explanation ... Vielen danke 🍮🧁🌷
do you have schematics for the breadboard?
Great job! Thank you!
Great vid ,Thanks a lot 😍🥰
please do nodal analysis or mesh analysis ❤️
Nice bro , keep it up
If the voltage drop increases, why would the voltage at point D increase?
이해가 잘 됩니다 좋아요
I don't know if the same thing happens in the US, but in Brazil everyone sees this and many other advanced subjects in high school, you just need to search "ponte de whatstone" here and you will see the number of video lessons, it's crazy
How to know what size of resistors to use?
Thank you sir 🔥
Interesting. Thanks!
Best explanation
Great vid
Really, really interesting!!!
Kind of disappointed that you didn't go into other wheatstone configurations. Like the quad-wheatstone strain gauge :D
Sorry. I can do that in a future part.
Thanks, good video!
The explaination is correct but to apply the voltage divider metod you must first asume that the voltage between c and d is 0V, and not the other way around
Is R2/(R1+R2)*Vin the same as R1/(R1+R2)*Vin? I saw another video of proof showing R1 on top.
Great video
Thank you!
shouldn't RX be (R2R3)/R1 ?
Good tutorial....👌👌👌
Amazing thank you!
Nice explanation, but using quarter wheatstone bridge as u showed in this video doesn't solve the problem with temperature messing up the measurement, because it's very likely that resistors used in this bridge will have different temperature coefficient than the strain gauge. We should use the half bridge instead, so 2 strain gauges , to make sure that the changing temperature won't mess up our mesurements, am
I right?
So R3 should also be a strain gauge? You will have a problem with 2 strain gauges measuring different forces.
better explanation than my university professor
awesome explation
you are awesome ! ❤❤❤
Amazing!!!
Thank you
Just amazing
How should you connect a microcontroller with it's ADC input?
masteringelectronicsdesign.com/measure-a-wheatstone-bridge-sensor-signal-with-an-adc/
Useful video 👍
Something that I do not understand. Why is this method better than two resistors in series connection? I mean a voltage divider...
Next video should be Basic configurations #2 - *FULL BRIDGE RECTIFIER*
Very helpfull.👍👍👍👍👍
THANKS YOUU!!!
*PLZ HELP*. Given a pressure of 2kpa, nominal resistance of 120 ohm, diameter of strain gauge 0.1mm, a GF of 2. What will be the change in resistance value of the strain gauge?....in short I wanta formula to calculate the change in resistance of strain gauge for a given INPUT PRESSURE
You are amazing 😁
Please continue your work!!!!
Brooo Thanks !
What software do you use to edit the video? :)
After effects
@3.51 sec, you say , R3 can be changed until Vc = Vd; but didnot understand here.. Rx is a R3*const(Ratio of other two resistors). How can you change only R3 to make Vc = Vd. This part is not clear. Once we know R1, R2; Rx is R3* Ratio of (R1 & R2) assuming Vc = Vd. In this case i can choose R3 any value of Ohms and it will meet the criteria. so why do we need to change R3 value
Hi bro very good idea but how we can attach this to microcontroller using list means I would ask otherwise the project is awesome house have a good idea for project why not to make a constant current source for example in LED driver or something else Goodluck
------Great fan of yours
6:22 Reostat?
Thanks....
Spanish version please!!!
🔥