Janne, Perhaps you can help re the Swedish. Bob Bosschart in his 1964 PHD thesis on Turam interpretation, and subsequently, refers to Swedish publications: "Tvaram" Sundberg, 1931; "Compensator" Sunberg and Hedstrom,1933; "Turam" Hedstrom,1937; and "Slingram" (loop-frame), Hedstrom, 1945. Would it be correct that Ram refers to the loop and the prefixes refer to two receivers coils as in Turam, with ground loopTx.; or a single receiver coil as in Slingram with a carried, fixed separation Tx. Regards, David
-----Original Message----- From: SEGMIN <[email protected]> On Behalf Of [email protected] Sent: April 2, 2020 6:47 AM To: [email protected] Subject: SEGMIN Digest, Vol 22, Issue 10 Today's Topics: 1. Re: Slingram etymology (Janne Kaukolinna) ---------------------------------------------------------------------- Message: 1 Date: Thu, 2 Apr 2020 12:46:37 +0200 From: Janne Kaukolinna <[email protected]> To: [email protected] Subject: Re: [SEGMIN] Slingram etymology Message-ID: <CAJ0dDthZJqm2Tf7=auf0z=odfym0hybvhdy2bas2yw+dvjc...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" Hi, Just a guess, but I would image the name comes from the fact the transmitter loop was now attached to frame as before ground loop was used.. Picture from early 40s set-up below, the receive coil in front, instrument carrier and the observer in the middle and the transmitter coil and "energizer" backpack following. [image: image.png] to 2. huhtik. 2020 klo 12.27 Kim Frankcombe via SEGMIN ( [email protected]) kirjoitti: > Gold. Thanks Janne. > > So it takes two sling rams to make a Slingram system (Tx and Rx). > > Cheers > Kim > > On 2/4/20 6:12 pm, Janne Kaukolinna via SEGMIN wrote: > > Hi, > > Dig into our legacy reports here in Boliden, Sweden and the text below > is from report called "Some Ore Prospecting Instruments", David > Malmqvist 1949 So as mentioned earlier Sling=Loop Ram=Frame > ---- > II. Loop-Frame Equipment > > The loop-frame method is a new geo-electrical field method which has > been developed in the prospecting work carried out by the Geological > Survey of Sweden in northern Sweden under the leadership of Mr. S > Werner, the geophysicist of the Geological Survey. The original aim > was to find a simpler and above all a cheaper method of prospecting. > However, the loop-frame method, has proved superior in several other > respects too to field methods hitherto used for ore prospecting. > Detail surveying according to this new method was commenced as early > as 1936, but it was not until the summer of 1937 that the field work > was started on a larger scale. In 1943 the Boliden Mining Company > acquired the rights of the method, and since then our geophysical > department has been engaged in improving it. > > Field surveying > Detail surveying according to the loop-frame method is carried out as > follows: Alternating current from a small energizer is fed to a > portable circular frame, a so called loop-frame, with a diameter of > about 1,5 m..... > ---- > > cheers, > > .janne > > to 2. huhtik. 2020 klo 8.24 Kim Frankcombe via SEGMIN ( > [email protected]) kirjoitti: > >> I contacted my pet Swede and he replied >> >> "Yes, translation loop frame is probably the closest, and with regard >> to whether to capitalise the first letter or not, it is if it has >> become a technology and no longer a brand name, similarly to >> Gramophone becoming gramophone. I am sure we had something we called >> Slingram with Dattatray Parasnis and Josef Zuber back at uni in >> Sweden, and I have regarded my EM34 as a slingram at least in the configuration." >> >> Roger also pointed me to page 110 in the green book and it says that >> Slingram is sometimes translated into English as loop-frame. >> >> That didn't make a lot of sense until I recalled the instrument >> hanging on the wall in Outokumpu >> >> >> I was picturing the twin operator unit on the table and struggling >> with loop frame but the "snow shoe" on the wall makes more sense. >> >> Diversion over, back to work. >> >> Cheers >> Kim >> >> >> On 2/4/20 12:46 pm, Rolf - NorCanEx via SEGMIN wrote: >> >> Why not ask a Swede? Which I am not. >> >> >> >> *Johan Alfred Holm*, f?dd 10 februari 1912 >> <https://sv.wikipedia.org/wiki/1912> i Lycksele >> <https://sv.wikipedia.org/wiki/Lycksele> i Lappland i V?sterbottens >> l?n <https://sv.wikipedia.org/wiki/V%C3%A4sterbottens_l%C3%A4n>, d?d >> 19 januari 1986 <https://sv.wikipedia.org/wiki/1986> i Vinsl?v >> <https://sv.wikipedia.org/wiki/Vinsl%C3%B6v> i Kristianstad l?n >> <https://sv.wikipedia.org/wiki/Kristianstad_l%C3%A4n>,[1] >> <https://sv.wikipedia.org/wiki/Alfred_Holm#cite_note-1> var en svensk >> ingenj?r <https://sv.wikipedia.org/wiki/Ingenj%C3%B6r>. Under tiden >> som anst?lld vid Sveriges geologiska unders?kning >> <https://sv.wikipedia.org/wiki/Sveriges_geologiska_unders%C3%B6kning> >> [2] <https://sv.wikipedia.org/wiki/Alfred_Holm#cite_note-2> (SGU) i >> Norsj? >> <https://sv.wikipedia.org/wiki/Norsj%C3%B6> p? 1930-talet fick han >> id?n om ett geofysiskt m?tinstrument, som kom att kallas slingram. >> >> Det f?rsta instrumentet av Slingramen >> <https://sv.wikipedia.org/wiki/Slingram>[3] >> <https://sv.wikipedia.org/wiki/Alfred_Holm#cite_note-3> uppfanns i >> Sverige under vintern 1936 av Alfred Holm tillsammans med geofysikern >> Sture Werner <https://sv.wikipedia.org/wiki/Sture_Werner>. Det ?r den >> i v?rlden mest anv?nda metoden vid elektromagnetisk prospektering. >> Som instrumentmakare medverkade Alfred Holm i utvecklingen av en hel >> rad instrument, bland annat kr?kningsm?tare f?r borrh?l. Han gick i >> pension fr?n SGU 1977. >> >> >> >> >> >> >> >> >> >> Looks like it just came to be known as Slingram. >> >> >> >> Some words in English: >> >> >> >> [in Sweden] ? The first use of electromagnetic (EM) instruments to >> locate buried ore deposits was in 1921 by Centralgruppens Emmissons A.-B. >> (Sundberg *et al.*, 1923:39). The survey used the EM method as >> developed by Karl Sundberg (Fig. 1) (Sundberg *et al.*, 1923:18ff). >> The EM Slingram method was invented in Sweden in 1936 by Sture Werner >> and Alfred Holm (NE). >> >> >> >> Rolf >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> *From:* SEGMIN [mailto:[email protected] >> <[email protected]>] *On Behalf Of *Dennis Woods via >> SEGMIN >> *Sent:* 2-Apr-20 00:33 >> *To:* [email protected] >> *Cc:* Dennis Woods <[email protected]> >> <[email protected]> >> *Subject:* Re: [SEGMIN] Slingram etymology >> >> >> >> >> And the other imponderable is: should Slingram be capitalized as I >> have always done? If it is just a Swedish translation of "loop >> frame", does it really need to be capitalized? >> >> Obviiously we all have too much time on our hands during the COVID-19 >> shutdown. >> >> Cheers, Dennis >> >> >> At 09:16 PM 01/04/2020, Kim Frankcombe via SEGMIN wrote: >> >> Content-Type: multipart/alternative; >> boundary="------------126154CDF1FCB3448640D024" >> Content-Language: en-AU >> >> Thanks James - I looked at the green SEG volume and Slingram gets one >> paragraph on p259 while MaxMin gets a page and a half. Readers are >> referred to Sveriges Geologiska for more info. >> >> The single word for something complex problem came up for me once >> before when I was interpreting some field notes written in French by >> an Arab gravity crew in Tunisia. My French wasn't up to the job so I >> threw it to Babel fish which at the time was better than Google >> translate and it told me that they had been delayed in a paddock for >> herring barrel time talking to a farmer. There was a typo in one of >> their words with one of the hats missing off a letter but it started >> me down a path of asking why would you have a word for herring >> barrel? Turns out they used to be pretty important and a source of much international argument. >> >> Cheers >> Kim >> >> >> On 2/4/20 11:48 am, James Reid via SEGMIN wrote: >> >> In Swedish? Regardless, it's very obscure to have a word for "Loop >> frame" I wonder what other contexts it's used in? >> >> *From:* [email protected] <[email protected]> >> <[email protected]> >> *Sent:* April 2, 2020 11:44 AM >> *To:* [email protected] >> *Cc:* James Reid <[email protected]> >> <[email protected]> >> *Subject:* RE: [SEGMIN] Slingram etymology >> >> This message originated outside Mira Geoscience. >> Google Translate says it means loop frame. >> >> >> *Howard Golden *3 Forsyth Close >> Mosman Park, WA 6012 >> AUSTRALIA >> +61 417 912 171 >> [email protected] >> >> *From:* SEGMIN < [email protected]> *On Behalf Of >> *James Reid via SEGMIN >> *Sent:* Thursday, 2 April 2020 11:29 >> *To:* [email protected] >> *Cc:* James Reid < [email protected]> >> *Subject:* Re: [SEGMIN] Slingram etymology >> >> Hi Kim ? >> >> I was told (or read somewhere) that it was from the Swedish and meant >> something like "Loop-frame" I don't have my textbooks in my home >> office, but I am pretty sure there is a bit of the history in the >> article by Frischknecht et al on small-loop EM in the SEG EM methods >> volumes edited by Nabighian (Vol 2 ? Applications, Part A?) >> >> Cheers, >> >> James >> >> >> *From:* SEGMIN < [email protected]> *On Behalf Of *Kim >> Frankcombe via SEGMIN >> *Sent:* April 2, 2020 11:24 AM >> *To:* SEGMIN User Forum <[email protected] > >> *Cc:* Kim Frankcombe <[email protected] > >> *Subject:* [SEGMIN] Slingram etymology >> >> This message originated outside Mira Geoscience. >> I was looking for a diversion when writing a report today and started >> wondering where the word Slingram comes from. I'd always assumed it >> was Finnish or at least Scandinavian and made perfect sense if you >> spoke the language but it might also be someone's name. At a stretch >> it might be *S*eparated *l*oop *in*duction *g*round something >> *m*achine? Sherrif says it's Swedish for Horizontal Loop method, >> supporting my original thought although presumably that still >> involves an acronym as I'd be surprised if any language had a single >> word saying Horizontal Loop EM method - scary if they do! Anyone know? >> >> Cheers >> Kim >> >> -- >> >> >> *Kim Frankcombe * >> Senior Consulting Geophysicist >> >> >> >> *ExploreGeo * >> PO Box 1191, Wangara, WA 6947 AUSTRALIA >> >> Unit 6,10 O'Connor Way, Wangara, WA 6065, Australia >> >> Phone +61 (0)8 62017719 - if your call goes to voice mail, leave a >> message. It converts to an email which I'll get where ever I am! >> >> Email [email protected] >> >> >> >> ----------------------- >> >> SEGMIN community mailing list service >> >> ([email protected] >> >> ). >> >> Change your personal options here: >> >> https://lists.geosoft.com/mailman/options/segmin/kim%40exploregeo.com >> .au >> >> Colleagues can join here: >> >> https://lists.geosoft.com/mailman/listinfo/segmin >> >> Archives: >> >> https://lists.geosoft.com/mailman/private/segmin/ >> >> NOTE that <Reply> will reply to all members of the list. >> >> >> -- >> >> Kim Frankcombe >> >> Senior Consulting Geophysicist >> >> >> *ExploreGeo * >> PO Box 1191, Wangara, WA 6947 AUSTRALIA >> >> Unit 6,10 O'Connor Way, Wangara, WA 6065, Australia >> >> Phone +61 (0)8 62017719 - if your call goes to voice mail, leave a >> message. It converts to an email which I'll get where ever I am! >> >> Email [email protected] >> ----------------------- >> SEGMIN community mailing list service ([email protected]). >> Change your personal options here: >> https://lists.geosoft.com/mailman/options/segmin/dennis.woods%40disco >> geo.com >> <https://lists.geosoft.com/mailman/options/segmin/dennis.woods@discog >> eo.com> >> Colleagues can join here: >> https://lists.geosoft.com/mailman/listinfo/segmin >> Archives: https://lists.geosoft.com/mailman/private/segmin/ >> NOTE that <Reply> will reply to all members of the list. >> >> >> ------------------------------ >> >> [image: Avast logo] <https://www.avast.com/antivirus> >> >> This email has been checked for viruses by Avast antivirus software. >> www.avast.com <https://www.avast.com/antivirus> >> >> >> >> >> ----------------------- >> SEGMIN community mailing list service ([email protected]). >> Change your personal options here: >> https://lists.geosoft.com/mailman/options/segmin/kim%40exploregeo.com >> .au Colleagues can join here: >> https://lists.geosoft.com/mailman/listinfo/segmin >> Archives: https://lists.geosoft.com/mailman/private/segmin/ >> NOTE that <Reply> will reply to all members of the list. >> >> >> -- >> >> Kim Frankcombe >> >> Senior Consulting Geophysicist >> >> *ExploreGeo* >> >> PO Box 1191, Wangara, WA 6947 AUSTRALIA >> >> Unit 6,10 O?Connor Way, Wangara, WA 6065, Australia >> >> Phone +61 (0)8 62017719 - if your call goes to voice mail, leave a >> message. It converts to an email which I'll get where ever I am! >> >> Email [email protected] >> ----------------------- >> SEGMIN community mailing list service ([email protected]). >> Change your personal options here: >> https://lists.geosoft.com/mailman/options/segmin/janne.kaukolinna%40g >> mail.com >> Colleagues can join here: >> https://lists.geosoft.com/mailman/listinfo/segmin >> Archives: https://lists.geosoft.com/mailman/private/segmin/ >> NOTE that <Reply> will reply to all members of the list. >> > > ----------------------- > SEGMIN community mailing list service ([email protected]). > Change your personal options here: > https://lists.geosoft.com/mailman/options/segmin/kim%40exploregeo.com. > au Colleagues can join here: > https://lists.geosoft.com/mailman/listinfo/segmin > Archives: https://lists.geosoft.com/mailman/private/segmin/ > NOTE that <Reply> will reply to all members of the list. > > > -- > > Kim Frankcombe > > Senior Consulting Geophysicist > > *ExploreGeo* > > PO Box 1191, Wangara, WA 6947 AUSTRALIA > > Unit 6,10 O?Connor Way, Wangara, WA 6065, Australia > > Phone +61 (0)8 62017719 - if your call goes to voice mail, leave a > message. 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