In cylinder pressure measurement

[Todd....!!]

Charles,

You're in luck...

I believe the sensors are mounted to the outside end of a spark plug and
just record the pressures/vaccums involved from there....

If the sensor is mounted far enough away from the cylinder, the heat
won't be a factor, only the accuracy of the readings due to pressure
variances due to the length of tube(i.e. distance) from the cylinder tha
tthe sensor is mounted...

They do it a lot at the dyno's, I'd start with dyno shops after this
e-mail thread and go from there!

COOL!

Please be sure and post what your findings are....

Later!

Todd....!!



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