PSN-L Email List Message

Subject: Re: Re[2]: MARK SENSOR
From: "Larry Cochrane" cochrane@..............
Date: Wed, 9 Jan 2002 15:14:42 -0800


What's important is that the combined resistance be what ever the
manufacture suggest is need for proper damping of the sensor.

-Larry


----- Original Message -----
From: "angel@chiriqui" 
To: "Larry Cochrane" 
Sent: Wednesday, January 09, 2002 2:51 PM
Subject: Re[2]: MARK SENSOR


> Hello Larry,
>
> Last year I took out one of the circuits off my L4 because by my
> calculations and the sec sheet and I think it significantly changes the
> damping.  As I recall it drops it to .5
>
> I think changing the resistor on the board is much better.
>
> I could be all wrong on that too!
>
> angel
>
> Wednesday, January 09, 2002, 5:39:46 PM, you wrote:
>
> LC> Francesco,
>
> LC> See the following schematic
http://www.seismicnet.com/onlinedocs/voltdrop.gif on how to lower the input
voltage to the Amp/Filter board.
>
> LC> -Larry Cochrane
> LC> Redwood City, PSN
> LC>   ----- Original Message -----
> LC>   From: Francesco
> LC>   To: psn-l@..............
> LC>   Sent: Wednesday, January 09, 2002 4:13 AM
> LC>   Subject: MARK SENSOR
>
>
> LC>   Hi to all
> LC>   from some weeks I'm using in my station 3 Mark L4 sensors with
Larry's ampli board.
> LC>   The output signal is very high, and a small events also near me
saturats the amplitude.
> LC>   The gain is at min.
>
> LC>   What I do to resolve this problem?
>
> LC>   In another station of our network, we use the Mauro Mariotti's ampli
board with the input resistor of 22k and all works fine.
>
> LC>   Can I do the same change?
>
> LC>   regards
>
> LC>   Fraancesco     Italy
>
>
>
> --
> Best regards,
>  angel                            mailto:angel@............
>
> __________________________________________________________
>
> Public Seismic Network Mailing List (PSN-L)
>
> To leave this list email PSN-L-REQUEST@.............. with
> the body of the message (first line only): unsubscribe
> See http://www.seismicnet.com/maillist.html for more information.
>


__________________________________________________________

Public Seismic Network Mailing List (PSN-L)


[ Top ] [ Back ] [ Home Page ]