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blood pressure mesurement????

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elchula

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Hi everybody.

I'm trying to make an blood pressure mesurement, but I don't have much information of this.

Please If someone have documentation of this please help me
 

Here is quite interestin project:
**broken link removed**
Regards,
IanP
 

The basic principle is this. You put a pressure pad around the arm and pump-up the pressure to higher than the expected blood pressure. There is a diaphram pressure sensor that measures the air pressure of in the pad. The pressure is then slowly released. When the air pressure becomes equal to the 2 pressure points that signify the blood pressure, the pressure pulsates widely. Using some computation, you detect these 2 break points. So you measure both the absolute pressure and the AC component of that. Rest is all computation and calibration.
 

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