interference fringe type might be work. On May 9, 2015, at 4:16 AM, Lee Hitchens wrote: > Thanks Louis > > I think the issue is the transulence of the coating. I think the > measurement is done on glass slides for parylene. However, > difficulties > appear to occur with unclear coatings such as silicones. > > However, I will pursue this and check. > > Best Regards > > Dr Lee Hitchens > > SCH Technologies is a Division of SCH Services Limited > Mob: +44 (0) 7862 25 33 21 > www.conformalcoating.co.uk <http://www.conformalcoating.co.uk/> > > TECHNICAL SUPPORT SERVICE > > SCH Services Ltd offers a Technical Support Helpline to help > address all > issues relating to reliability. This includes contamination testing, > cleanliness and cleaning issues, plus any coating related questions. > Please contact us via email or telephone: > > [log in to unmask] +44 (0)1226 249019 (office hours & answerphone) > +44 (0)7862 253321(out-of-hours emergency) > > The opinions expressed in this e-mail are strictly those of the > sender and > not of SCH Services Limited. This communication may contain > information > which is confidential and may also be privileged. It is for the > exclusive > use of the intended recipient(s). Unauthorised use, copying or > disclosure > of any of it may be unlawful. If you are not the intended recipient(s) > please note that any distribution, copying or use of this > communication or > the information in it is strictly prohibited. If you have received > this > communication in error please notify us by e-mail or by telephone (+44 > (0)1226 249019) and then delete the e-mail and any copies of it. Virus > Warning - Although steps have been taken to ensure that all email and > attachments are virus-free, we cannot guarantee nor be held liable. > > Company Registration: 04043334 > Registered office: SCH Services Limited Newburgh Building McLintock > Way > Barnsley South Yorkshire S70 6BF > > > > > > > > On 08/05/15 18:41, "Louis Hart" <[log in to unmask]> wrote: > >> Lee, it has been more than 15 years, but I measured synthetic diamond >> coatings, with thickness a fraction of what I expect conformal >> coating >> should be, on metals with an ellipsometer and an instrument called a >> 'Nanospec'. The ellipsometer was more accurate, as it measured the >> material property (dielectric permittivity, I think it was) of the >> specimen then used that to determine coating thickness. The >> nanospec, if >> my memory is correct, had a catalogue of material parameters from >> which >> you called up yours and got a thickness in one observational step. >> >> Both used a laser, again if my memory is correct. The area of >> coating >> being measured was a tiny spot, much smaller than any dimension of a >> component leg I know of. Louis >> >> >> >> -----Original Message----- >> From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee Hitchens >> Sent: Thursday, May 07, 2015 3:50 AM >> To: [log in to unmask] >> Subject: [TN] Conformal Coating Thickness Measurement on legs of >> components >> >> Hi all >> >> I am being asked regularly now on options for measuring coating >> thickness >> on legs. I am trying to determine if there is actually a practical >> solution? >> Cost is less important compared to being a workable relatively quick >> process? >> >> One thing that could be an issue is many times its a silicone >> coating and >> this tends to be less than clear optically. Some systems need clear >> coatings to be successful. >> >> Has anyone had any success with this? >> >> Best Regards >> >> Dr Lee Hitchens >> >> SCH Technologies is a Division of SCH Services Limited >> >> Mob: +44 (0) 7862 25 33 21 >> >> www.conformalcoating.co.uk <http://www.conformalcoating.co.uk/> >> >> >> >> >> >> >> _____________________________________________________________________ >> _ >> This email has been scanned by the Symantec Email Security.cloud >> service. >> For more information please contact helpdesk at x2960 or >> [log in to unmask] >> _____________________________________________________________________ >> _ > > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud > service. > For more information please contact helpdesk at x2960 or > [log in to unmask] > ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________