I have not heard of anyone using combustion sensors in a flight engine, nor
do I think that it would provide much value as most designs are either not
throttlable or already have an accurate measurement of propellant flow rate
in the feed system. What actionable information would an O2 sensor gather,
am I missing something?
In the lab there are some extremely cool methods of measuring the
compounds,
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19980201356.pdf is a
bit old but it covers most of the basics of an H2/O2 systems in section
3.2, including direct measurement of gO2 using raman spectroscophy. But
these are primarily used for injector element experiments and design and
CFD code validation.
Lloyd
On Thu, Dec 10, 2015 at 3:33 AM, Monroe L. King Jr. <
monroe@xxxxxxxxxxxxxxxxxx> wrote:
I have not heard of using modern techniques such as those in the
automotive industry to control rocket engine combustion.
It occurs to me that if we want to have complete control over our
engines performance we need this same control over the combustion
process.
This would be especially useful for a preburnner system that
reintroduces the turbine gasses into the main rocket combustion chamber.
I'm wondering if anyone on arocket has heard of a combustion sensor
much like the O2 sensor in automotive use used to detect oxidizer/fuel
ratio in the exhaust gases?