HHR Ed Posted December 12, 2012 Report Share Posted December 12, 2012 no worries I didnt know R ohms either, I'm using the IM-SG1 right now and it says Ωc when I test a wire's impedance with different runs and I want to know what it means. C can mean a couple things. But you cant test impedance of a wire. At least not outside of a circuit. You probably will get an answer posting that question to D'Amore about the tool specifically. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
KillaCam Posted December 12, 2012 Report Share Posted December 12, 2012 How do you guys type the Ohm symbol? Try holding alt and pressing 8486 on the num pad. It doesn't work for me because I don't have a number pad on my laptop. And the fact more than one person agrees does not make it a circle jerk, it makes it a bukkake scene and you're in the middle Chick took 3 shots of Jager, and then, pissed in my mouth.. B5 Passat Build Log Link to comment Share on other sites More sharing options...
Nightshade Posted December 12, 2012 Report Share Posted December 12, 2012 no worries I didnt know R ohms either, I'm using the IM-SG1 right now and it says Ωc when I test a wire's impedance with different runs and I want to know what it means. C can mean a couple things. But you cant test impedance of a wire. At least not outside of a circuit. You probably will get an answer posting that question to D'Amore about the tool specifically. no worries I didnt know R ohms either, I'm using the IM-SG1 right now and it says Ωc when I test a wire's impedance with different runs and I want to know what it means. C can mean a couple things. But you cant test impedance of a wire. At least not outside of a circuit. You probably will get an answer posting that question to D'Amore about the tool specifically. Actually you can. All resistance is is the opposition to the flow of electricity. You can test the impedence of any electrical component if you have a dmm that will read very high or very low impedence. For example, I just took a 3" long piece of single strand copper wire and tested it with a fluke 45 meter and it read resistance just fine. 2013 VW Jetta GLI 2.0 Turbo 1 Sundown Audio SCV2000 1 Sundown Audio X15 V2 1 XS Power D3100 Audio Control LC6i Stock Deck 146.4 sealed on the dash at 37hz 2001 Focus ZX3: RETIRED Team Sundown Audio, Team XS Power, 2 time NSPL Car 3601-Up Champion, 2 time NSPL Car Hardcore ChampionHighest NSPL Scores to date:154.3db on the dash sealed at 46hz, 156.2db in the kick at 46hz155.2db unofficial on dash at 43hz Link to comment Share on other sites More sharing options...
Tarball Posted December 12, 2012 Report Share Posted December 12, 2012 How do you guys type the Ohm symbol? How do you guys type the Ohm symbol? X2 been wondering that. Google didnt help Hold "Alt" and type the ASCII code using the number pad OHM symbol = <Hold> ALT + <Numpad> 234 = Ω http://www.asciitable.com/ CURRENT SYSTEM: Alternator: Stock alt on mids/highs Isolated DC Power 270 SP - Charging @ 16.8v Batteries: (2) XS D1400s Power Cable: Double Runs of 1/0 KNU Kolossus Fleks Headunit: 80-PRS Sub Amp: DC 5.0k Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones Subwoofer Enclosure: 9.1cubes @ 32hz - brutal. Mids & Highs Amp: CT125.4 Active Components: Mids RE XXX 6.5c Highs - 3 RE XXX tweeters per side(A pillar) Noise Control: Damplifier Pro all over the cab. Build Log If you do business with me please leave feedback here: FEEDBACK THREAD Highest Legal Score: 151.0 db Highest Musical 30 Second Average: 151.6 db Link to comment Share on other sites More sharing options...
HHR Ed Posted December 12, 2012 Report Share Posted December 12, 2012 no worries I didnt know R ohms either, I'm using the IM-SG1 right now and it says Ωc when I test a wire's impedance with different runs and I want to know what it means. C can mean a couple things. But you cant test impedance of a wire. At least not outside of a circuit. You probably will get an answer posting that question to D'Amore about the tool specifically. no worries I didnt know R ohms either, I'm using the IM-SG1 right now and it says Ωc when I test a wire's impedance with different runs and I want to know what it means. C can mean a couple things. But you cant test impedance of a wire. At least not outside of a circuit. You probably will get an answer posting that question to D'Amore about the tool specifically. Actually you can. All resistance is is the opposition to the flow of electricity. You can test the impedence of any electrical component if you have a dmm that will read very high or very low impedence. For example, I just took a 3" long piece of single strand copper wire and tested it with a fluke 45 meter and it read resistance just fine. Resistance an Impedance are different things. From Wiki pedia Electrical impedance is the measure of the opposition that a circuit presents to the passage of a current when a voltage is applied. The electrical resistance of an electrical element is the opposition to the passage of an electric current through that element Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
HHR Ed Posted December 12, 2012 Report Share Posted December 12, 2012 So can this tool measure DC resistance that you'd see in a wire? I don't know, never saw this tool. Can it only measure reactive impedance as in a woofer? Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
HunterJohnson Posted December 12, 2012 Author Report Share Posted December 12, 2012 Do you mean like mili ohms mΩ= 10-3, micro ohms µΩ= 10-6, nano ohms nΩ= 10-9 , pico ohms pΩ= 10-12 Then you have the positive side of the spectrum like kili ohms kΩ= 103 , mega ohms MΩ= 106 , giga ohms GΩ= 109 , tera ohms TΩ= 1012 Is this what you were talking about? yeah thank you, but specifically Ωc because thats what the IM-SG1 says, I think it means closed loop? Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
HunterJohnson Posted December 12, 2012 Author Report Share Posted December 12, 2012 So can this tool measure DC resistance that you'd see in a wire? I don't know, never saw this tool. Can it only measure reactive impedance as in a woofer? it can measure impedance at any frequency, when you drop the frequency to 7.3 hz it's pretty much the same as hooking up a normal dmm. To measure the wires impedance I hook up the sgim1 to both the pos and neg wires then I connect the other end of the wire to the pos/neg so it is a closed loop. This gives a reading and you can see it over the whole hz spectrum and if the ohms change. http://damoreengineering.com/documents/IM-SG%20Ver.%202.pdf Page 13-14 Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
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