With the measurement principle of spectrophotometry, the analyzer calculates absorbency by software . avoiding the mathematical formulas of logarithmic ratio amplifiers.

Then an NN analyzer for syntax analysis is put forward and the analysis for the ratio of performance to cost is given. The result shows that BMP has the superiority to conventional one.

Phase ratio, particle size and thermal analytical character of the powder have been studied by DTA, particle size analyzer and X-ray diffraction.