In a message dated 03/06/02, dcrice@............ writes:

> I neglected to mention that the MEMSIC sensors are less than $10.
> Probably they aren't interesting to the PSN, but if you wanted to 
> instrument a high-rise or a bridge really cheap, they might be.

Hi Doug,

       No offense meant and I thank you sincerely for bringing the Memsics to 
our attention, but you did suggest their application as strong motion sensors 
and ask if anyone knew anything about them?  
       These are very clever little devices which have a wide range of 
applications, but with the temperature scale drift a function of T^2.67, 
giving about 1% / C deg, offset drift and a minimum noise of ~0.3 milli g / 
root Hz, they do not seem to be much better suited for seismic observations 
than the ADXL05, which several of us found just a bit disappointing.
       
       Regards,

       Chris Chapman
In a message dated 03/06/02, dcrice@............ writes:



I negl
ected to mention that the MEMSIC sensors are less than $10.

Probably they aren't interesting to the PSN, but if you wanted to instrument a high-rise or a bridge really cheap, they mig
ht be.




Hi Doug,



       No offense meant and I thank you sincerely for bringing the Memsics to our attention, 
but you did suggest their application as strong motion sensors and ask if anyone knew anything about them?  

       These are very clever little devices which have a wide range of applications, but with
 the temperature scale drift a function of T^2.67, giving about 1% / C deg, offset drift and a minimum noise of ~0.3 milli g / 
root Hz, they do not seem to be much better suited for seismic observations than the ADXL05, which several of us found just a b
it disappointing.

       

       Regards,



       Chris Chapman