V. Babrauskas et al., THE PHI METER - A SIMPLE, FUEL-INDEPENDENT INSTRUMENT FOR MONITORING COMBUSTION EQUIVALENCE RATIO, Review of scientific instruments, 65(7), 1994, pp. 2367-2375
An instrument has been developed to monitor the equivalence ratio in c
ombustion systems. It is based on a novel oxygen consumption measuring
method. The instrument does not require knowledge of the chemical com
position of the process being monitored. Both gaseous and solid (soot)
products of incomplete combustion are successfully handled. The devic
e is relatively compact and can be developed for moderate cost and por
table use.