Anyone out there who can Help??...Pressure Pads

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electrocric

New Member

• Oct 19, 2010

• #1

Hi,
I'm looking for small electronic pressure pads that can give me pressure readings digitally.
I need them for an experiment i'm conducting relating to difference in pressure for air flow around a Ball. i need them to be able to stick them onto the ball and get readings when there is difference in air flow..

CAN ANYONE HELP??
I Will be truly grateful....

Thanks

F

 

Last edited: Oct 19, 2010

ronv

Well-Known Member

Most Helpful Member

• Oct 20, 2010

• #2

The ball is stationary and the airflow varies? How big etc?

 

C

colin55

Well-Known Member

• Oct 20, 2010

• #3

Make your own with black foam from IC's and place aluminium foil on both sides.

 

Dragon Tamer

Member

• Oct 21, 2010

• #4

He said a digital readout, he would need an ADC to go with a home made pressure sensor.

 

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KMoffett

Well-Known Member

• Oct 21, 2010

• #5

I don't think you are going to find stick-on pressure sensors that will register the low pressures involved in air streams. External sensors will also disrupt flow over the surface and thus alter pressures. A more likely solution would be to small tubes, connected to differential air pressure sensors, penetrating the surface of the ball from the inside at the desired measurement points. Can you provide more details about the setup?...ball size?...air flow rates?...???

Ken

 

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electrocric

New Member

• Oct 21, 2010

• #6

Cricket ball

The ball is a Cricket ball held with its seam vertical. Air flow travelling at 70+ mph to around 90ish mph (setup in wind tunnel).

 

Last edited: Oct 21, 2010

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KMoffett

Well-Known Member

• Oct 21, 2010

• #7

Not being a Cricket person, what is the interior of the ball? How many sensors? At what positions?

Is this where you're going? **broken link removed**
ken

 

Last edited: Oct 21, 2010

ronv

Well-Known Member

Most Helpful Member

• Oct 21, 2010

• #8

Not sure if this would work but I have used resistive pressure sensors. They are made on a flex lead and change resistance with pressure. I used them for and electronic gas pedal for an electric motorcycle. It mounted on the handlebar and you pressed it with your thumb to go. About .020" thick and 3" long.