In cylinder pressure measurement

[goflo at pacbell.net]

SuperFlow sells/sold a setup for measuring cylinder pressure.
Piezoelectric transducer, IIRC, involved drilling into the
combustion chamber. Pricey stuff.

Jack

C. Brooks wrote:
> 
> Has anyone ever heard of anybody doing this? I was talking with someone
> about data acquisition systems and the subject came up while we were
> discussing methods of knock detection. I'm not to enthusiastic about being
> able to monitor A/F ratios accurately or in realtime, and our conversation
> kinda stuck with me.
> 
> If anyone's ever seen or heard about somebody performing in cylinder
> pressure measurements I'd love to hear about it. I imagine the transducers
> would have to be pretty tough, how would they mount? What kind of sample
> rate do you think would be needed? Best of all, who would make a sensor that
> could take the abuse???
> 
> Charles Brooks