Fuzzy estimator for plasmid-bearing microorganism

Fuzzy estimator is developed for determining the concentration of plasmid-bearing microorganism (x+) in a continuous bioreactor. Membership functions, fuzzy ranges for the inputs and outputs are defined. A fuzzy rule base is constructed relating the inputs to the output based on operators experience. A defuzzification method is selected and the non-fuzzy value of x+ is obtained. The results are compared with the actual values of x+ which are obtained by numerically solving the model equations of the system. The estimator is also tested for the other operating conditions. The estimator performs well for other operating conditions also.