fwd: Re: Where is ACH-04-08 ? Thanks.

[SRavet at bangate.compaq.com]

Comments By: Steve Ravet at Prj Eng at PCPD Hou
Originally To: <SRavet at bangate.compaq.com>
Originally From: Helmut Forren <helmut at atlanta.com>
Original Date:  7/14/96  2:06 AM
Comments:

There is an accelerometer listed in the EFI reference that I maintain, the 
ACH-04-08.  Someone wrote me the following information, which indicates 
that this part is probably not suitable for our application.  I'm also 
adding the info to the efi ref list.

--steve

Steve Ravet
sravet at bangate.compaq.com
Baby you're a genius when it comes to cooking up some chili sauce...


-------------------------[Original Message]--------------------------

Thanks for keeping information like you do on the ACH-04-08 accelerometers.
I did get detailed information and found out that they have an AC response
only, no DC response.  This means that they are good for measuring "vibration"
and "impacts", but not for reading steady-state forces, like the lateral
force on a car going around a corner, accelerating, or braking.  These are
the applications that I need, so the part's useless for me.  Also, there
is a 25% cross axis sensitivity on one axis.  This means that if there's a
1g vibration on the other axis, this one will read a quarter g.  That's
pretty bad performance in accelerometer-land.  You could only use this
part in applications where cross axis sensitivity does not matter.

If you don't mind, please add this info to the page for others to access.

Helmut Forren
President
Forefront Inc.