Re: [Emc-users] PCB adapters for oscilloscope probes

2015-03-18 Thread Mark Wendt
On Tue, Mar 17, 2015 at 5:21 PM, Philipp Burch p...@hb9etc.ch wrote: Hi everyone, please excuse this question very unrelated to LinuxCNC, but I know that here are quite some people around who are familiar with scopes and high-frequency measurements. Some who like Tek and some who don't ;)

Re: [Emc-users] PCB adapters for oscilloscope probes

2015-03-18 Thread Philipp Burch
Hi Mark! On 18.03.2015 10:16, Mark Wendt wrote: On Tue, Mar 17, 2015 at 5:21 PM, Philipp Burch p...@hb9etc.ch wrote: ... Philpp, That was more than likely a Tek made part, most likely a derivative of their Peltola connectors. We used to have a bunch of those here at work, but someone

Re: [Emc-users] OT: Allen Bradley PowerFlex 40 question

2015-03-18 Thread Erik Christiansen
On 12.03.15 14:46, richsh...@comcast.net wrote: Just a reminder, using this kind of equipment in the US does require a license from the FCC! It is a radio transmitter and as such it does require compliance with the rules. Had a furniture factory that used RF heating for setting glue, worked

Re: [Emc-users] VFD causing limits to trip. Huh?

2015-03-18 Thread Steve Stallings
If one is trying to minimize radiated interference from a signal source, then grounding the shield at the source end makes sense. My suggestion of grounding the shield at the consumer of the signals was based on reducing the likelihood of a hostile external noise source confusing the consumer.

Re: [Emc-users] VFD causing limits to trip. Huh?

2015-03-18 Thread Karlsson Wang
I also agree about this. Nicklas Karlsson On Wed, 18 Mar 2015 12:43:16 -0500 Steve Stallings steve...@newsguy.com wrote: If one is trying to minimize radiated interference from a signal source, then grounding the shield at the source end makes sense. My suggestion of grounding the

Re: [Emc-users] VFD causing limits to trip. Huh?

2015-03-18 Thread Przemek Klosowski
On Mon, Mar 16, 2015 at 11:34 AM, Peter Blodow p.blo...@dreki.de wrote: Steve, this is a good description of noise reduction by shielding. To make it more exact, the shield should be grounded at the end where the lower impedance is, mostly the signal source. This is opposite to what Steve

Re: [Emc-users] PCB adapters for oscilloscope probes

2015-03-18 Thread Dave Caroline
At the very very small level Cascade has some stuff https://www.cmicro.com/products A design for PCBs from another maker http://www.ggb.com/40a.html their 40A looks like a good idea a FET probe (many makers) and I like Peters idea of build it in or I think on a probing assembly you put on top or

Re: [Emc-users] PCB adapters for oscilloscope probes

2015-03-18 Thread Philipp Burch
Hi Dave! On 18.03.2015 08:19, Dave Caroline wrote: At the very very small level Cascade has some stuff https://www.cmicro.com/products A design for PCBs from another maker http://www.ggb.com/40a.html their 40A looks like a good idea a FET probe (many makers) and I like Peters idea of

Re: [Emc-users] PCB adapters for oscilloscope probes

2015-03-18 Thread Philipp Burch
Hello everyone! Thanks for all the great responses. I looks like it will boil down to creating something own. @Florian: Excellent idea with the DIL socket! I already thought about putting together something own, but those sockets for the tip connection didn't come to my mind. Other probes