Anyeong,
So far, both sensors are appropriate for this project, just that the honeywell SCC05DN is a much better choice in accuracy when compared to the MPXV5050GP pressure sensor.
Above I have given the link of datasheets for both sensors for comparison purposes, and so that you can see the differences between this two sensors. Somehow the SCCO5DN is a more sensitive and more accurate sensor. So I have decided to give priority to this sensor and will try to implement this sensor with the Blood Pressure circuit. :) wink2...hehe
Okay that's all folks..... Enough blogging and lets continue reading for phase test.... Bye Bye
Regards,
Idriah Safriza Bte Idris Chin :p
This week is phase test week. Schedule is rather tight and not much that I can do this week, but I did spare some time on research for the best pressure sensor to use for the Blood Pressure circuit. OK as I promised earlier, I will
update you guys on what sensor I'll be using right?
So, here we go......
So, here we go......
After
much dilemma on choosing the right sensor, I have shortlisted 2 best
sensors to choose from. It is between the MPXV5050GP and the SCC05DN
pressure sensor. After going through the datasheets and comparing the
specifications of both sensors, I have finally decided to use the
SCC05DN pressure sensor manufactured by Honeywell.
Anyway I had already bought both sensors, and I am going to make the MPXV5050GP for backup in case the SCC05DN does not work well with the BP circuit. Both sensors are 0 to 5psi where it is capable of withstand up to 250mmHg.... :D
Blood Pressure Theory
Theoretically, the arm cuff of the Blood pressure monitor needs to inflate the brachial artery until the pressure of the cuff completely occlude the artery (meaning no blood flow through the artery). Typically, blood pressure needs at least 180mmHg to 200mmHg to completely occlude the brachial artery. Then, the pressure sensor will read the pressure at that moment where it is known as the Systolic Blood Pressure (highest Blood Pressure in the brachial artery during occlusion of blood vessel).
Next, the valve connected to the sensor will be open and it will be program to release air bit by bit, so that air can be release and deflation of the cuff can occur slowly. Then again the pressure sensor will read where the vessel is completely open and blood flow is back to normal where it is known as the Diastolic Blood Pressure (normal flow of blood pressure in the vessel).
To further read on the Blood Pressure Principle click here :)
Anyway I had already bought both sensors, and I am going to make the MPXV5050GP for backup in case the SCC05DN does not work well with the BP circuit. Both sensors are 0 to 5psi where it is capable of withstand up to 250mmHg.... :D
Blood Pressure Theory
Theoretically, the arm cuff of the Blood pressure monitor needs to inflate the brachial artery until the pressure of the cuff completely occlude the artery (meaning no blood flow through the artery). Typically, blood pressure needs at least 180mmHg to 200mmHg to completely occlude the brachial artery. Then, the pressure sensor will read the pressure at that moment where it is known as the Systolic Blood Pressure (highest Blood Pressure in the brachial artery during occlusion of blood vessel).
Next, the valve connected to the sensor will be open and it will be program to release air bit by bit, so that air can be release and deflation of the cuff can occur slowly. Then again the pressure sensor will read where the vessel is completely open and blood flow is back to normal where it is known as the Diastolic Blood Pressure (normal flow of blood pressure in the vessel).
To further read on the Blood Pressure Principle click here :)
Figure 1: MPXV5050GP
Figure 2: SCC05DN
So far, both sensors are appropriate for this project, just that the honeywell SCC05DN is a much better choice in accuracy when compared to the MPXV5050GP pressure sensor.
Above I have given the link of datasheets for both sensors for comparison purposes, and so that you can see the differences between this two sensors. Somehow the SCCO5DN is a more sensitive and more accurate sensor. So I have decided to give priority to this sensor and will try to implement this sensor with the Blood Pressure circuit. :) wink2...hehe
Okay that's all folks..... Enough blogging and lets continue reading for phase test.... Bye Bye
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Quote of the day..........!
Be still like a mountain and flow like a great river. ~Lao Tzu
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Regards,
Idriah Safriza Bte Idris Chin :p
