Hello all, I finally got finished building a two axis sensor using the ADXL202 accelerometer and boy, am I disapointed. I am using the analog outputs rather than the digital pwm outputs and the noise is tremendous. It is virtually a random noise generator ! I have the bandwidth for the ADXL202 chip set at 50 Hz along with a 12 Db 15Hz lowpass filter on the output then into a noninverting gain of 100 into my AtoD. Geez.... I have to literally shake the sensor to differentiate between the noise and the signal. I'll try a lower filter cutoff on the lopass and if that dose'nt work, I'm changing my allegiance to Lehman. Casey ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj. __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>