Peter Nunn wrote:

Yes, it is very fast but how are you proposing to attach it to the turbine
shaft?
There are reflective sensors but they tend to be commercial grade
components.  would not last long close to a turbine wheel (temp/vibration).
Am looking at the hardware/software now and the mass-flow idea seems the
simplest to me.  Don't think you need a temp sensor so only 4 analog sensors
needed ( + engine tacho input for mass flow calcs).  Can probably have the
design simulation done next week, and would probably take about 6 weeks to
get the prototype running.  I can provide a litte CE panel that would show 4
gauges + tacho for programming, is there likely to be an egine that can be
hooked up to in about that time frame?

regards

Don't really know but a small hole in the compressor scroll looking at 
the reflective blade tips may work. Perhaps fiber optics for ruggedness. 
Divide by the number of blades or more using a hardware counter to 
reduce cpu overhead.

Perhaps we can talk Greg into testing it or some of the car guys. I still 
think we need a temp sensor for intake manifold temp. Critical for
prevention of detonation. I know I would want one for sure.

Paul Lamar
 
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