(meteorobs) re: Possibility of Electrostatic meteor detection.

Tue Apr 17 16:48:24 EDT 2007

The  Trautner et. al paper below points out several very interesting
things:

1)  It can be difficult to separate out distant lightning and meteor
effects.
2)  If the Schumann resonances are used, the response is a global
integration of many sources.

This implies that for significant meteor counting, of local meteors
particularly, the Schumann resonances need to be avoided.  This implies
the use of frequencies over 60hz or pulse correlation techniques.  For
the reception of these higher frequencies, a very large multi-turn
magnetic antenna is more effective than an electrostatic antenna and
easier to monitor.   One can imagine a pulse interferometer comprised of
an array of large coils located about 10km apart with microsecond
digitization for meteor detection and location.  We need to know more
about single meteor pulses first...

Traditionally, voltage-to-frequency converters or modulation of a high
frequency "carrier" (say 10khz) have proven most effective when trying
to record very low frequency signals.  Digital data loggers are the way
to go these days.

Wes

-----Original Message-----
From: meteorobs-bounces at meteorobs.org
[mailto:meteorobs-bounces at meteorobs.org] On Behalf Of drobnock
Sent: Sunday, April 15, 2007 6:23 AM
To: meteorobs at meteorobs.org
Subject: (meteorobs) re: Possibility of Electrostatic meteor detection.

Hi

Thank you for the feedback.

The information you are presenting appears to be similar to the research
presented by R. Trautner and others, ULF- VLF Electric Field
Measurements During the 2001 Leonid Storm. The research Trautner
presented,  indicated a electrical field sensor was used. The
configuration diagram  and field photograph is similar to that in the
Hull  project diagram.

A description of detection electrostatic fields is similar to a chapter
in a
book by Petruzzellis, Electronic Sensors...., 2006,   entitled "Sensing
Electric
Fields".

See
http://www.rssd.esa.int/SB-general/Projects/meteors/publications/ULF-VLF
_Electric_field_measurements_during_the_2001_Leonid_storm_Paper.pdf

Thank you for the feedback and  again good luck.
George John Drobnock

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>    1. Re: re:  Possibility of Electrostatic meteor detection.
>       (stange34 at sbcglobal.net)
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 13 Apr 2007 23:34:31 -0700
> From: <stange34 at sbcglobal.net>
> Subject: Re: (meteorobs) re:  Possibility of Electrostatic meteor
>         detection.
> To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
> Message-ID: <001201c77e5e$f5e4b2e0$f94d204b at area5150>
> Content-Type: text/plain;       format=flowed;  charset="iso-8859-1";
>         reply-type=original
>
> Hello George.
>
> First 3 questions can be answered easily enough. I am not engaged in 
> any ELF to uW propogation or spectral "signature" work requiring any 
> need to coordinate my observations with those who might be examining 
> meteor electromagnetics. I left the world of RF in 1991 after +30 
> years of Ham Radio.
>
> My concern is for Fair Weather Field Electrostatics & possibly 
> Geo-magnetics later.
>
> Questions 4 & 5:
>
> 4) No
> 5) A rare clear night between storms & clouds over the last two weeks.
>
> Larry
> ----- Original Message -----
> From: "drobnock" <drobnock at penn.com>
> To: <meteorobs at meteorobs.org>
> Sent: 2007/04/13 12:10
> Subject: (meteorobs) re: Possibility of Electrostatic meteor
detection.
>
> > Five questions on the possibility of electrostatic meteor detection.
> >
> > 1. Before you reinvent the wheel on observations of night time 
> > signatures attributed to meteors,  what is your literature search 
> > and review of past work in the field of meteor vlf (electromagnetic)

> > signature related to electromagnetic signatures from meteors during 
> > meteor activity or storms?
> >
> > 2, Have you reviewed or correlated the signatures or pulses with 
> > those conducting radio meteor or scatter research during the same 
> > time period of your observations?
> >
> > 3  Is there a possibility of the signatures or pulses being related 
> > to SES (sudden enhancement to signals)  related to solar activity? 
> > Or heating and cooling of the atmosphere?
> >
> > 4. Is the observation site adjacent to electrical power lines? 
> > Highways or factories?
> >
> > 5. What are the current weather condtions in you location during 
> > observation time period?
> >
> >
> > George John Drobnock
> >
> > ---
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