PSN-L Email List Message
Subject: Re: Re: 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.
----- Original Message -----
To: "Larry Cochrane"
Sent: Wednesday, January 09, 2002 2:51 PM
Subject: Re: 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!
> 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 ]