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Author Topic: Pressure sensor  (Read 1587 times)
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cenkar
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« on: March 05, 2008, 08:46:59 20:46 »


Hello

 Pressure sensor + lm324 circuit diagram searc.

Thanks
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8K51
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« Reply #1 on: March 05, 2008, 10:54:02 22:54 »

a simple schematic with LM324 equivalent :
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POWERMAN
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« Reply #2 on: March 09, 2008, 11:57:01 23:57 »

Here a schematic for you.
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free
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« Reply #3 on: March 10, 2008, 10:00:03 22:00 »

Using Instrumentation Amplifier(InAmp) chip is better than build InAmp from general purpose opamp(GPO).
I tried build from GPO with 1% resistors, but the result is not satisfy, the gain is too far from what I want.
 
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« Reply #4 on: March 11, 2008, 09:16:04 09:16 »

Hi,

i using this schematic for MPX2010D and is work fine, i do correction parameters (offset and range) with autocalibration by soft.
Instrument amplifier is better, yes, but more expensive too.
All depend about application goals.
regards.
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anemon06
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« Reply #5 on: March 11, 2008, 11:41:10 11:41 »

http://www.sonsivri.com/forum/index.php?topic=10598.msg45424#msg45424

This post mpx4150 pressure sensor applicaiton
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Kova
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« Reply #6 on: March 11, 2008, 05:00:20 17:00 »

This post mpx4150 pressure sensor applicaiton

I haven't found the project Sad
In the .rar file there are 10 projects but none use the mpx4150 sensor Sad
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anemon06
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« Reply #7 on: March 12, 2008, 10:43:57 10:43 »

Ok. attached this file. source kode picbasic
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armandiaz
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« Reply #8 on: April 18, 2008, 07:03:12 19:03 »


If you are looking for barometric sensor I suggest you to have a look at:

www.hoperf.com
www.wti.fi

They have cheap sensors a lot more accurate than the Freescale ones.
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AdiN
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« Reply #9 on: May 01, 2008, 10:06:57 22:06 »

lm324 circuit diagram search.
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