Strain gage for, measuring downforce |
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Strain gage for, measuring downforce |
Randal |
Apr 27 2009, 02:23 PM
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#21
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
Anyone know of a strain gage that measures in lbs or kg's that I can use to measure the downforce of my new rear spoiler. I plan on mounting it underneath the truck lid between the lid and the fiberglass frame. Like where the arrows are pointing:
I figure if I can find something that reads the downward force I can just set it up with a video camera pointing at the gage, drive down the freeway. with the car on the trailer and get some readings. |
type11969 |
Apr 29 2009, 09:10 PM
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#22
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Senior Member Group: Members Posts: 1,231 Joined: 2-December 03 From: Collingswood, NJ Member No.: 1,410 Region Association: North East States |
I would think that you would want two strain gauges 90 degrees out from the leading and trailing edges too . . . unless you think you can assume that the wing is rigid enough that it is not flexing in at the center and causing the uprights to bow in towards each other as well.
Even with just 4 strain gauges you are gonna need a datalogger though. Load cells could definitely work, but they would have to be directly in the load path which makes implementation a little tricky. |
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