Talk:Cantilever

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The modal frequency or the first mode of frequency for a cantilever beam is given by the equation (B1l)^2(EI/rho.A.l^4)^1/2. Where B1l=1.875104 (which is the first mode frequency) —The preceding unsigned comment was added by 138.250.27.152 (talk) 15:11, August 22, 2007 (UTC)

Someone should add info here about the use of cantilevers in AFMs and such. If I ever get enough time and knowledge, I'll throw my two cents in. -cgw

What is an "AFM"? Leonard G. 03:01, 19 Mar 2005 (UTC)

Atomic_force_microscope --210.248.188.53 17:54, 23 June 2006 (UTC)

The definition needs to be expanded a little more... I'm reading it but still not "getting it". It reads like anything is a cantilever as long as it's anchored. -Timvasquez 03:34, 14 September 2005 (UTC)

[edit] Clarifying canteliver

I added an image in hopes of clarifying what a cantilever is for those who process things visually. Feel free to take the basic idea and spiff it up. Epolk 22:12, 12 October 2005 (UTC)

the picture looks like a rake

I updated the picture. - SCgatorFan 04:34, 15 July 2007 (UTC)

[edit] IN MEMS

I think the In MEMS section of this page needs to be reviewed. I would dispute the claimed relation between resonant frequency and applied force. Largely because applied stress is force over an area, which means that in the spring constant equation force would seem to cancel with the stress that appears in the deflection equation, this makes sense because the spring constant should be... well constant. This would mean that the force does not appear in in the resonant frequency equation when the spring constant is substituted into the equation.

Looking on IEEExplore at articles on the subject, it would seem that measurements of resonant frequency and change in resonant frequency are usually used to determine a change in the overall mass of the cantilever arm, NOT in measuring change in applied force. These applications often involve detecting the other particles attaching to the cantilever arm and therefore changing its frequency. On the other hand, change in applied force detection is usually achieved by somehow measuring change in deflection, rather than a change in frequency.

I could be wrong in my understanding of all this, but I still think this section of the page needs some revision to clarify these points. —Preceding unsigned comment added by 132.181.52.93 (talk) 00:57, 5 October 2007 (UTC)