who know about sensors?

[mona:)]

hi buddies...
i am so confused ,i should design and make a vibration sensor which should work in 10_2500 hz and its top measurement should be 20grms......
i search for it in the web but i find nothing!
looking forward for your advise.
thanks
mona

 

[ronv]

Would this do it?

https://www.electro-tech-online.com/custompdfs/2012/07/ACH_01.pdf

 

[mona:)]

thnx ronv...
it's good help,but does not say any thing about its circuit or design.....except gain stage.

 

[ronv]

What do you need to know?
Explain what you are trying to build and I bet someone can help.

 

[mona:)]

i said .it is my project to design and build a vibration sensor(Accelerometer) which show its result by 7seg (up to 24 bit)....buti dont know any thing about sensors(specially the vibration ones)....i found some thing but they were very primery.i need a tutrial that explain evry parts and their rules
thank u for your reply
mona

 

[ronsimpson]

I went to the web page of the Accelerometer manufacture, looked for application notes, found many papers.
Next go to another manufacture and look for application notes. Do this five times.

 

[mona:)]

excuse me. could u give the web address u went?

 

[davenn]

thnx ronv...
it's good help,but does not say any thing about its circuit or design.....except gain stage.

it tells you all you need to know about it .... a 3 wire connection ....power supply and signal out

the problem is you havent really told us what kind of vibrations you are trying/want to detect.
That would help greatly in recommending a specific sensor for you

following the sensor you will probably need preamplification and filtering using several Op-Amps then feeding that signal into your A to D converter

similar to what friends and I do for our digital seismograph systems for recording earthquakes

cheers
Dave

 

[mona:)]

it tells you all you need to know about it .... a 3 wire connection ....power supply and signal out

the problem is you havent really told us what kind of vibrations you are trying/want to detect.
That would help greatly in recommending a specific sensor for you

following the sensor you will probably need preamplification and filtering using several Op-Amps then feeding that signal into your A to D converter

similar to what friends and I do for our digital seismograph systems for recording earthquakes

cheers
Dave

why ur so serious.....
thnks for all your help . i found my way .but could i have ur design for digital seismograph systems for recording earthquakes
??and what ADC u reccomend me?

 

[ronsimpson]

excuse me. could u give the web address u went?

You have a job but you don't know how to design this and you don't know how to find the web address or how to find papers describing how to use the parts. In my country if you know how you don't have a job. Replaced by workers in China.

The web address is on the data sheet (at the bottom). It might take 5 minutes to find the page "application notes".
There are many companies that make this kind of part. You need to learn how to search the internet and find their application notes. Do you need help with that?

 

[circuitspecialists]

Here is a link for a simple use of an accelerometer to measure vibration. Hope it helps!
https://www.dimensionengineering.com/appnotes/vibration_meter/

 

[mona:)]

You have a job but you don't know how to design this and you don't know how to find the web address or how to find papers describing how to use the parts. In my country if you know how you don't have a job. Replaced by workers in China.

The web address is on the data sheet (at the bottom). It might take 5 minutes to find the page "application notes".
There are many companies that make this kind of part. You need to learn how to search the internet and find their application notes. Do you need help with that?

hi ronsimpson....
thnx for your help but i am not an employee im a junior student and this project is for my apprenticeship!!!
i shoud work 300 h without salary....(from 8am to 4 pm)
if i asked somthing silly ,plz excuse me(i am enjoying chating u )

 

[mona:)]

and another thing
i found many companies but u know what i found was only catalogs they don't say about their design.(reasnably)

 

[ronsimpson]

Your project has two parts. The Accelerometer and the Meter.

There are many types of meters like this one. https://www.electro-tech-online.com/custompdfs/2012/07/40lcd.pdf This one measures DC voltage and you need a AC meter. These meters come in LED or LCD.

Here is a meter kit made from a small micro and a LCD. The accuracy is not as good the meter above.
https://electronics-diy.com/product...me=Voltmeter Ammeter Kit - Blue Backlight LCD

If you have a DC meter and need a AC meter here is some information on how to rectify low voltage AC signals signal. This will allow you to measure the AC signal from the accelerometer and measure it with a DC meter.
**broken link removed**

I hope this helps you.

Have you seen this?
https://blog.makezine.com/2009/04/06/how-to-tuesday-arduino-101-accelero/
https://www.evilmadscientist.com/20...an-accelerometer-with-an-avr-microcontroller/
https://www.dimensionengineering.com/info/accelerometers
https://www.dimensionengineering.com/appnotes/vibration_meter

 

[mona:)]

i am so greatful for your reply ...
thanks a lot......