HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Guest Blogs

Optically Isolated Relays Can Handle Industrial Systems, Too

NO RATINGS
View Comments: Threaded|Newest First|Oldest First
naperlou
User Rank
Blogger
Go solid state
naperlou   11/1/2012 11:57:31 AM
NO RATINGS
Whenever a solid state component is available it will generally be superior to an electromechanical one in most modern applications.  I ran into this years ago with amplifiers for communications for satellites.  Typically klystron tubes were used.  Advances in solid state amplifiers allowed the replacement of these in many cases.  They were more reliable, lighter and used less power.  I see the same thing with this class of relay.  They also, as is pointed out, avoid some of the pitfalls of electromechanical relays.  There was an article in Design News about a problem with such a relay recently. 

akwaman
User Rank
Gold
Re: Go solid state
akwaman   11/2/2012 10:21:32 AM
NO RATINGS
 I couldn't agree with you more, naperlou. Solid state is the way to go whenever is makes sense, as far as I'm concerned. In noise sensitive data aquisition matters, electromechanical relays can introduce unwanted noise into a system.  These kinds of optical relay technology has many uses.  Of course the obious power savings is a plus as is the reliability factor.

mrdon
User Rank
Platinum
Re: Go solid state
mrdon   11/3/2012 11:09:23 PM
NO RATINGS
akwaman, Nicely explained, I agree totally with all the points you've made. I wanted to use SSRs(solid state relays) in wireless Hunter Fan Ceiling Controls but management was against it because of cost. As you discussed in your post, yes the intial cost investment is somewhat pricey but the ROI would have been substantial in terms of reduced customer warranty claims due to failing electromechanical relays. I'm definitely will be sharing this article with my Control Systems class at ITT Tech.

Partner Zone
More Blogs from Guest Blogs
To get to a trillion sensors in the IoT that we all look forward to, there are many challenges to commercialization that still remain, including interoperability, the lack of standards, and the issue of security, to name a few.
Today, no matter where in the world the device is located, it can call home and ask for the latest-and-greatest firmware with bug fixes and feature updates.
A decade from now, firmware development may be nothing more than software integration, grabbing vendor and third-party components, and meshing their APIs together to form a final system.
Design, simulation, manufacturability, and prototyping: All of these phases are being pushed forward and progressively by underlying technologies.
From design feasibility, to development, to production, having the right information to make good decisions can ultimately keep a product from failing validation. The key is highly focused information that doesn’t come from conventional, statistics-based tests but from accelerated stress testing.
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 6 - 10, Building Raspberry Pi Controllers with Python
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service