Re: [PSES] Measurement dilema

2018-01-26 Thread Douglas Smith 
That is certainly true, but the problem here is there is an error one is not 
aware of, although this is an extreme example.

Doug Smith Sent from my iPhone IPhone: 408-858-4528 Office: 702-570-6108 Email: 
d...@dsmith.org Website: http://dsmith.org
On Fri, Jan 26, 2018 at 17:34, Richard Nute  wrote:


Hi Doug:



While I don’t yet have the answer (and may never have the answer), I ran across 
this quote from Luigi Galvani which I think applies here:



“For it is easy in experimentation to be deceived, and to think one has seen 
and discovered what we desire to see and discover.”



Best regards,

Rich





From: Doug Smith [mailto:d...@emcesd.com]
Sent: Friday, January 26, 2018 2:50 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Measurement dilema



Hi All,

Can you explain the result in this video I just made? Scope plots of the same 
two nodes are completely different. Probes and scope are operating normally, no 
problem with the equipment itself.

If you have been to my seminars you know the answer, please do not post the 
answer unless you have not seen this experiment until now.

Hint 1: There are no EM fields radiating from the shielded box affecting the 
probes.
Hint 2: There are no active components inside the box.

https://youtu.be/qj-HBFMEJiY [https://youtu.be/qj-HBFMEJiY]

Doug



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Re: [PSES] Measurement dilema

2018-01-26 Thread Richard Nute 
 

Hi Doug:

 

While I don’t yet have the answer (and may never have the answer), I ran across 
this quote from Luigi Galvani which I think applies here:

 

“For it is easy in experimentation to be deceived, and to think one has seen 
and discovered what we desire to see and discover.”

 

Best regards,

Rich

 

 

From: Doug Smith [mailto:d...@emcesd.com] 
Sent: Friday, January 26, 2018 2:50 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Measurement dilema

 

Hi All,

Can you explain the result in this video I just made? Scope plots of the same 
two nodes are completely different. Probes and scope are operating normally, no 
problem with the equipment itself.

If you have been to my seminars you know the answer, please do not post the 
answer unless you have not seen this experiment until now.

Hint 1: There are no EM fields radiating from the shielded box affecting the 
probes.
Hint 2: There are no active components inside the box.

https://youtu.be/qj-HBFMEJiY

Doug 

  

 

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 >

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Re: [PSES] IATA/ICAO and U 83.3 rules

2018-01-26 Thread Doug Powell 
Thank you all, once again very helpful information.

Have a great weekend,  Doug




On Thu, Jan 25, 2018 at 2:09 PM, Ted Eckert 
wrote:

> Hello Doug,
>
>
>
> Go to the following website and download the “Shipping lithium batteries –
> documentation requirements” file.
>
> http://www.fedex.com/id/tools/lithium.html
>
>
>
> It has a flow chart showing the UN shipping requirements for batteries
> packaged within products. The batteries will need UN 38.3 testing, but
> shipping batteries in products is fairly simple after that.
>
>
>
> Ted Eckert
>
> Microsoft Corporation
>
>
>
> The opinions expressed are my own and do not necessarily reflect those of
> my employer.
>
>
>
> *From:* Doug Powell [mailto:doug...@gmail.com]
> *Sent:* Thursday, January 25, 2018 12:45 PM
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* [PSES] IATA/ICAO and U 83.3 rules
>
>
>
> Hi all,
>
>
>
> I am curious to know if anyone is familiar with IATA/ICAO and UN 83.3
> rules as they apply to shipment of cell phones (and other products) with
> built in batteries.  Many manufacturers generally separate the battery from
> the product or insulate one of the terminals to prevent inadvertent
> activation during shipment. With built in batteries this is not always
> possible.  I don't believe the rules specifically say batteries must be
> removed or disconnected.  So how, exactly is this handled by most people?
>
>
>
> Thanks all.  Doug
>
>
>
> -- Hel
>
>
>
> Douglas E Powell
>
> doug...@gmail.com
> http://www.linkedin.com/in/dougp01
> 
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to <
> emc-p...@ieee.org>
>
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieee-pses.org/emc-pstc.html
> 
>
> Attachments are not permitted but the IEEE PSES Online Communities site at
> http://product-compliance.oc.ieee.org/
> 
> can be used for graphics (in well-used formats), large files, etc.
>
> Website: http://www.ieee-pses.org/
> 
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> unsubscribe)
> 
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>
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>



-- 

Douglas E Powell

doug...@gmail.com
http://www.linkedin.com/in/dougp01

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For

Re: [PSES] Measurement dilemma

2018-01-26 Thread Doug Smith 




Hi Ralph,

The result is not caused by sampling rate, 5 GSa/sec in this case. The result 
will be the same on any scope!

All instrumentation is working as designed and intended for measurements of 
signals like this. An analog scope would display exactly the same waveform 
(used to do the experiment with an analog scope a while back).

Doug








On Fri, 26 Jan 2018 23:13:21 +, Ralph McDiarmid  wrote:

  




Sample rate aliasing



When displaying a 40MHz signal on a DSO, I would want to select a time base 
that provided at least 400MS/s sampling rate.



If you were to use a 100MHz analogue scope, I would expect the effect to 
disappear.



That’s my 60s guess






Ralph McDiarmid
Product Compliance Specialist
Solar Business
Schneider Electric


D604-422-2622


3700 Gilmore Way
Burnaby, BC, V5G 4M1
Canada












From: Doug Smith [mailto:d...@emcesd.com]
Sent: Friday, January 26, 2018 2:50 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Measurement dilema






Hi All,

Can you explain the result in this video I just made? Scope plots of the same 
two nodes are completely different. Probes and scope are operating normally, no 
problem with the equipment itself.

If you have been to my seminars you know the answer, please do not post the 
answer unless you have not seen this experiment until now.

Hint 1: There are no EM fields radiating from the shielded box affecting the 
probes.
Hint 2: There are no active components inside the box.

https://youtu.be/qj-HBFMEJiY

Doug 







__
This email has been scanned by the Symantec Email Security.cloud service.
__

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formats), large files, etc.

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[PSES] Measurement dilema

2018-01-26 Thread Doug Smith 




Hi All,

Can you explain the result in this video I just made? Scope plots of the same 
two nodes are completely different. Probes and scope are operating normally, no 
problem with the equipment itself.

If you have been to my seminars you know the answer, please do not post the 
answer unless you have not seen this experiment until now.

Hint 1: There are no EM fields radiating from the shielded box affecting the 
probes.
Hint 2: There are no active components inside the box.

https://youtu.be/qj-HBFMEJiY

Doug









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[PSES] JOB POSTING - ONTARIO, CANADA

2018-01-26 Thread Doug Nix 
PLEASE CONTACT TED TYCZKA DIRECTLY

A very notable, “high-profile” client who is seeking a Safety & Services 
Sales/Business Development Professional - to join their Machine Services 
Division - the focus of the role is to spearhead/lead the sale of Engineering 
Services related to “functional safety.” 
 
The company sells safety training (workshops), machine assessment/audits, 
engineering design per CSA and/or TUV Safety requirements (“Regulatory 
Compliance”).  The company also sells Remediation and Repair Services (of 
industrial machines) together with Service Contracts ... to customers in the 
aerospace, automotive, forestry, food & beverage, as well as, the packaging 
sectors. 
 
The Safety & Services/Business Development Professional can work from a home 
office - anywhere in Ontario. A Bachelor of Science in Mechanical or Electrical 
Engineering, together with the sale of Machine Safeguard devices and the 
application of these, would be desired ... together, with some exposure to 
Industrial Automation and perhaps Robotics. The key is to have some knowledge 
of safety components, safety scanners, switches, controllers, etc. as well as 
machine building experience. 
 
The employer (a very reputable, Global entity/brand) ... who provide a very 
competitive base salary, lucrative annual bonus/incentive program vs. results, 
plus monthly car allowance, Benefits, Matching RRSP + (Training, Career 
Opportunities and upward mobility). 
 
They are good people, seek an ambitious self-starter who can cover sales from 
the “shop floor” level to the “C Suite” (Boardroom). The company have 
established Sales Reps across Canada ... who can work with the Safety & 
Services Sales Specialist ... this role requires “consultative and solutions 
oriented selling ability.
 
I will ensure absolute confidentiality. Nice opportunity with a great 
organization and strong, capable leadership. Thanks. 
 
Kind professional regards,

Ted Tyczka

President
Golden Mile Management – Consulting Services
2630 Eglinton Avenue East, Toronto, Ontario M1K 2S3
Tel: (416) 266 - 4434
Email: t...@gmmcs.com 
Website: www.gmmcs.com 
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