PSN-L Email List Message

Subject: Re: Seismic Switch
From: "GPayton" gpayton@.............
Date: Sun, 13 Jun 2010 11:54:53 -0500


Thank you, Tim.  That is what I suspected; that it was (1) an accelerometer, 
(2) that it might not be sensitive enough and (3) not worth the cost or 
trouble.  I was wondering IF any of it might be useful as experimental 
parts.

Thank again,
Jerry
  ----- Original Message ----- 
  From: Timothy Carpenter
  To: psn-l@..............
  Sent: Sunday, June 13, 2010 11:37 AM
  Subject: RE: Seismic Switch


  Jerry,

  I found the following in the archives:

  Public Seismic Network Mailing List (PSN-L)





  Subject: Re: KINEMETRICS SEISMIC SENSOR

  From: Doug Crice  dcrice@............

  Date: Mon, 05 Nov 2001 07:01:01 -0800



  I believe that this is a 3-component force balance accelerometer.

  Kinemetrics made them from scratch in order to produce a

  reasonably-priced product.  It triggers on an earthquake and sends

  analog data to a central recording system.  It predates modern MEMS

  accelerometers, will only detect strong local earthquakes, and should

  only be purchased for a lot less than this vendor thinks it's worth. I'm

  sure Larry's system will be better and reasonably priced.



  RADIOTEL@....... wrote:

  >

  > TO: ALL LIST MEMBERS

  > There is a Kinemetrics TS-3 Seismic Sensor on Ebay #1657596668.  Current 
bid

  > is $102.00.  I have no idea whether it is a strong motion sensor, long 
period

  > sensor or broad band sensor.

  Hope that helps.

  -Tim-



  Timothy Carpenter, P.E., President

  GeoDynamics Consultants, Inc.

  5043 Whitlow Ct.

  Commerce Twp., Michigan 48382

  248-363-4529

  248-766-1629

  geodynamics@...........

  geodynamics@.......



  From: psn-l-request@.............. [mailto:psn-l-request@............... 
On Behalf Of GPayton
  Sent: Sunday, June 13, 2010 11:29 AM
  To: PSN Network List
  Subject: Seismic Switch



  I had previously addressed this to Chris, but will also ask the group:



  Please enlighten me on a Seismic Switch, specifically a Kinemetrics TS3, 
which is currently on EBay.  Would it be worth anything; salvage parts 
maybe?   Is it sensitive enough for teleseismic sensing?



  Regards,

  Jerry







Thank you, Tim.  That is what I suspected; that it was (1) an=20 accelerometer, (2) that it might not be sensitive enough and (3) not = worth the=20 cost or trouble.  I was wondering IF any of it might be useful as=20 experimental parts.
 
Thank again,
Jerry
----- Original Message -----
From:=20 Timothy=20 Carpenter
To: psn-l@..............
Sent: Sunday, June 13, 2010 = 11:37=20 AM
Subject: RE: Seismic = Switch

Jerry,

I=20 found the following in the archives:

Public Seismic = Network=20 Mailing List (PSN-L)

 

 

Subject: Re: = KINEMETRICS=20 SEISMIC SENSOR

From: Doug = Crice =20 dcrice@............

Date: Mon, 05 = Nov 2001=20 07:01:01 -0800

 

I believe that = this is a=20 3-component force balance accelerometer.

Kinemetrics made = them from=20 scratch in order to produce a

reasonably-priced=20 product.  It triggers on an earthquake and = sends

analog data to a = central=20 recording system.  It predates modern MEMS

accelerometers, = will only=20 detect strong local earthquakes, and should

only be = purchased for a=20 lot less than this vendor thinks it's worth. I'm

sure Larry's = system will=20 be better and reasonably priced.

 

RADIOTEL@....... = wrote:

>=20

> TO: ALL = LIST=20 MEMBERS

> There is a=20 Kinemetrics TS-3 Seismic Sensor on Ebay #1657596668.  Current=20 bid

> is = $102.00.  I=20 have no idea whether it is a strong motion sensor, long=20 period

> sensor or = broad band=20 sensor.

Hope=20 that helps.

-Tim-

 

Timothy=20 Carpenter, P.E., President

GeoDynamics=20 Consultants, Inc.

5043=20 Whitlow Ct.

Commerce=20 Twp., Michigan 48382

248-363-4529

248-766-1629

geodynamics@...........

geodynamics@.......

 

From:=20 psn-l-request@.............. [mailto:psn-l-request@............... = On=20 Behalf Of GPayton
Sent: Sunday, June 13, 2010 11:29=20 AM
To: PSN Network List
Subject: Seismic=20 Switch

 

I had previously addressed this to Chris, but = will also ask=20 the group:

 

Please enlighten me on a Seismic Switch, = specifically a Kinemetrics TS3, which is currently on = EBay.  Would it be worth anything; salvage parts = maybe?   Is it=20 sensitive enough for teleseismic sensing?

 

Regards,

Jerry


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