PSN-L Email List Message

Subject: Re: ADXL202 Sensor
From: "Larry Cochrane" cochrane@..............
Date: Thu, 24 May 2001 17:21:59 -0700

Go with the Lehman. You will record a lot more events with this type of

-Larry Cochrane
Redwood City, PSN

----- Original Message -----
From: "Casey Crane" 
Sent: Thursday, May 24, 2001 3:03 PM
Subject: ADXL202 Sensor

> 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
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Larry Cochrane <cochrane@..............>