Great experiment. Never opened my scale but I thought the strain gauges needed to be attached in a more complicated way, that's great.

@CuriousScientist

3 жыл бұрын

Thanks! Not, it is "just glued" to the surface. Of course, they might use different glues, but cyanoacrylate glues are usually perfectly fine for the purpose. When they are used in load cells, they are attached in a bit more complex way in a sense, that they are installed to a certain geometry with a certain alignment. In load cells, it is often that there are 4 strain gauges are used.

Excellent tutorial. Thank you for uploading.

@CuriousScientist

Жыл бұрын

Thank you! Cheers!

Great detailed video. Thanks for posting it.

@CuriousScientist

Жыл бұрын

Glad you liked it! Cheers!

Great video. Thank you very much.

@CuriousScientist

2 жыл бұрын

Glad you liked it!

Great video ! Thanks

@CuriousScientist

2 жыл бұрын

Thank you! Glad you liked it!

Great video sir love from Pakistan

@CuriousScientist

3 жыл бұрын

Thank you! I am glad you liked it! Best wishes from Sweden!

Excellent tutorial. I’d like to use something like this to measure the torque of an auger drive for screw piling.

@CuriousScientist

3 ай бұрын

Thanks! I hope your project goes well!

Awesome !

@CuriousScientist

Жыл бұрын

Thank you!

Nice 👍

@CuriousScientist

3 жыл бұрын

Thanks ✌

How accurate are these strain guages? Could they possibly be used to measure the expansion of a metal tube over the course of an evening as the temperature outside changes?

@CuriousScientist

3 жыл бұрын

Definitely! In fact, if you want to use the strain gauges properly, you have to install them in a way that they cancel out the thermal expansion. The unit used for strain gauges is usually expressed in "microstrain" because the change that you can resolve with them "does not make sense" in "strain" units. It is just too small to use the regular strain units.

thank you sir, if i may ask. how do i know the amplifier gain that used in the module?

@CuriousScientist

2 жыл бұрын

You are welcome! Either you check the schematics of the amplifier and calculate it or measure the voltage at the input and the output of the amplifier and figure it out from the proportions. If I am not wrong, the LM358-based circuit has a 2-stage amplification, first with ~50x gain which is followed by another ~25x gain stage.

What is the built-in module you use (the one at 2:45)? I have developed my own circuit making a Wheatstone bridge and using an instrumental amplifier, but just because I wasn't aware of the existence of these kinds of built-in solutions. This seems to simplify the matter a lot!

@CuriousScientist

3 ай бұрын

Hi! It is on my website under the parts and tools section.

Very good video! I would like to know whatever is the graphics software used. Is this graphics software available?

@CuriousScientist

2 жыл бұрын

Thank you! This whatever software is written by me. It is not available for free.

good explanation... but may you show how do you connect that small circuit to the bar? I don't get it

@CuriousScientist

2 жыл бұрын

Thank you!

Great video. I am wondering why don’t you use hx711 with 3 constant resistors to establish a Wheatstone bridge.

@CuriousScientist

3 жыл бұрын

Hi! I cannot offset the signal with the HX711, and I cannot measure fast. The HX711 can only measure up to 80 samples/s. Also, the amplifier circuit comes with a built-in Wheatstone bridge.

@ahmedalkhairo7651

3 жыл бұрын

@@CuriousScientist So, is this module capable of measuring strain gauges for dynamic and impact experiments? What’s the best amplifier for this kind of experiments?

@CuriousScientist

3 жыл бұрын

It is capable yes. For dynamic experiments, you just need a fast and high resolution ADC such as the ads1256. I don't know which is the *best* as I haven't tested too many yet.

@ahmedalkhairo7651

3 жыл бұрын

@@CuriousScientist Thanks for your reply. What about load cells, can I hook it to this module? I mean load cell is a full Wheatstone bridge which means that we don’t need the built-in resistors. I built similar data logger with hx711 modules and three resistors attached to the output to make the Wheatstone bridge. Thus, I can read strain gauges and loadcell at the same time. However, I am looking for an upgrade to read at higher sampling rate for dynamic testing.

@CuriousScientist

3 жыл бұрын

Load cells will not work with this module. I think you haven't watched the video carefully enough, but I specifically talked about this. This is a strain gauge amplifier with a built-in Wheatstone bridge.

This might be a silly question, but would apply a strain gauge like this work on curved surfaces? Like for example, a bowl?

@CuriousScientist

3 жыл бұрын

Absolutely doable! They do it with pipes, rods...etc in the industry which are also curved. And there are no silly questions! :)

@CuriousCat-yl8by

3 жыл бұрын

@@CuriousScientist thankyouuu for your reply and nice explanations :D

If I may ask.. Could it be used in universal testing machine (UTM) and measure the strain of material under testing of UTM?

@CuriousScientist

3 жыл бұрын

Yes, but keep in mind that these gauges can only measure up to ~2% strain.

hello, thanks for this video. So, I have a strain gauge with amplifier connected to the Arduino circuit. i am able to read some numbers from the strain gague but it's not the forces or the mass. do you know how i can make Arduino convert whatever the strain gauge is reading to mass?

@CuriousScientist

2 жыл бұрын

Hi! I think you don't understand how strain gauges work. Check my video, so you will understand more about them: kzread.info/dash/bejne/eIuGy7WCoamZlps.html In order to convert the readings into weight, you need to be able to convert the voltage into strain, then you need to convert the strain into force/stress (hint: Hooke's law).

@neonk3655

2 жыл бұрын

@@CuriousScientist thank you! The video is helpful. I am aware of the process, but i am not sure how to implement that into Arduino.

@CuriousScientist

2 жыл бұрын

You're welcome! Well, it is quite a lengthy process to explain it in the comments. But you can get the ideas from my videos.

@neonk3655

2 жыл бұрын

@@CuriousScientist will do! Thank you.

Thanks for the video!!! I found a loadcell for scales has 5strain gauge. Could u explain how can we connect all of them or schema. Thatnk you!!!!!

@CuriousScientist

2 жыл бұрын

I have no idea what kind of load cell you are talking about. It is impossible to say anything without seeing it. It's like telling the car mechanic that you have a yellow car and it is broken, can he fix it?

@Mkhayra

2 жыл бұрын

@@CuriousScientist ok I ll send you the pic

@Mkhayra

2 жыл бұрын

I dont have ur email

@CuriousScientist

2 жыл бұрын

My email address is really easy to find. But keep in mind that I am not a free support service.

How would I connect multiple strain gauges on the metal bar in a wheatstone configuration? Thanks!

@CuriousScientist

Жыл бұрын

Hi! Just Google it. You'll find pictures of it.

thank you very much....please can you tell me when i find the software that you are used ..and how you connect computer?? thank you again

@CuriousScientist

3 жыл бұрын

Hi! That is my own custom software I wrote. It is not available.

@fatimafatima-oc7dz

3 жыл бұрын

@@CuriousScientist i have Arduino can i use it instead of ads /??

@CuriousScientist

3 жыл бұрын

Yes and no. The Arduino has built in AD converter, however it is nowhere near as good as the ADS1256. I would not use it for strain gauges.

@fatimafatima-oc7dz

3 жыл бұрын

​@@CuriousScientist thank you so much you helpful ...can you show me the guide to get similar software i am civil engineering not familiar with electronic.. thank you again

@CuriousScientist

3 жыл бұрын

Yes, watch my videos. I have so many videos dedicated to ADS1256. I also have some where I use the ADS1115.

is there a simple way to convert the voltage from the module to strain? i found no data sheet nor formular for this module. still nice video

@CuriousScientist

2 ай бұрын

Sure! Check this video: kzread.info/dash/bejne/ao6n2ZWLcdPRhqQ.html

@c13.12t

2 ай бұрын

@@CuriousScientist thanks 👍

I have a question: If he has a ruler made of aluminum or iron, should I clean the ruler with 80 grains of silicon carbide before applying strain?

@CuriousScientist

6 ай бұрын

It is always advised to clean the surface.

@EsraAbay200

6 ай бұрын

@@CuriousScientist What is the nominal resistance of type 402? Which is written |||IFSR_||||18|||

@CuriousScientist

6 ай бұрын

Sorry, I have no idea what that is based on your description.

Does this software communicate directly with the STM32 board?

@CuriousScientist

2 жыл бұрын

Hi! Yes it does through the serial port.

I have a load cell with strain gauges attached to the top and bottom, but the wires have been removed. How can I tell which of the "pads" go to which of the wires? It is hard to tell from your video because my strain gauges are different.

@CuriousScientist

3 ай бұрын

It's hard to tell from your description which connections you should use because there are several different strain gauge patterns. I am not a magician to guess your strain gauge. You can look up Omega Engineering's catalog and find your strain gauge and the relevant information.

@VidarrKerr

3 ай бұрын

@@CuriousScientist Yeah, I thought I would find one like mine and put a link here. I still cannot find a similar strain gauge. I might send an email with a pic to Omega. Thanks.

@CuriousScientist

3 ай бұрын

You can send a mail to me too.

@VidarrKerr

3 ай бұрын

@@CuriousScientist OK. Tomorrow. Thank You!

Hello, how can i find the rate of deformation for strain gauge when it undergoes a consistent deformation and thank you

@CuriousScientist

11 ай бұрын

Hi! The rate is the time derivative of the strain.

@user-uk8ji5mw2v

11 ай бұрын

@@CuriousScientist how can I measure the strain of gauge from voltage difference?

@CuriousScientist

11 ай бұрын

Watch my strain gauge videos, I explained it very carefully.

Hi. What is the name of that amplifier?

@CuriousScientist

2 жыл бұрын

Hi! It is an LM358D if you meant the OPAMP.

hello sorry, would there be any way to access the code used in arduino?

@CuriousScientist

2 жыл бұрын

Hi! Yes, check my website and other KZread videos.

@tanjerincupcake

2 жыл бұрын

@@CuriousScientist thank you

Soldering is not sticking to leads of strain gauge. What to do?

@CuriousScientist

Жыл бұрын

Make sure you use flux. Also, you need to heat _both_ the solder tab and the wire. If the tab is cold, the solder will not stick to it.

@girishpanchal9072

Жыл бұрын

@@CuriousScientist thank you so much, I am able to do soldering as per your guidance!!

@CuriousScientist

Жыл бұрын

@@girishpanchal9072 Super, I am really happy for you! Now you also learned a new skill! Have fun!

Glue.??

@CuriousScientist

2 жыл бұрын

Glue. What else?