dear sir, i am doing M. Tech. my project on piezoelectric accelerometer. but i couldn't get detailed informations on 'how much volatage will develope or how much resistance will change when a particular force will be applied on a structure contains four beams and a centre mass (which is actually my proposed structure)?' in my structure wafer is n-type Si and resistors are p-type. although i got some idea from S. M. Sze's book-semiconductor sensors, bot that is insufficient. so plz. if anyone knows the details mathematical theory or from where i can get details information, inform me. thnking you, ....pulok pattanayak ############################## PULOK PATTANAYAK **************** ROOM NO-B214 R.P.HALL I.I.T.KHARAGPUR W.B.-721302 ----------------- e mail:p_pulok@yahoo.com ##############################