HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Product News
Electronics & Test

Micromachined Sensor Measures Gas Flow in Smart Meters

NO RATINGS
View Comments: Oldest First|Newest First|Threaded View
Rob Spiegel
User Rank
Blogger
The value of the new sensors
Rob Spiegel   6/26/2012 12:46:10 PM
NO RATINGS
Hi Chuck. I'm still a little lost as to the value of the new sensors. It sounds like there is not an accuracy increase. Are they less expensive?

Charles Murray
User Rank
Blogger
Re: The value of the new sensors
Charles Murray   6/26/2012 5:15:14 PM
NO RATINGS
MEMSIC says that today's electromechanical methods of measuring gas flow are accurate but not well suited to implementation in smart meters with wireless communication capabilities. They also say that previous MEMS-based methods did not have the high resolution that the new sensor offers.

Rob Spiegel
User Rank
Blogger
Re: The value of the new sensors
Rob Spiegel   6/27/2012 3:13:41 PM
NO RATINGS
Is there a price point advantage on this as well, Chuck? With the cost of electronics going down consistently, that might be one of the selling points here.

Charles Murray
User Rank
Blogger
Re: The value of the new sensors
Charles Murray   6/27/2012 9:33:30 PM
NO RATINGS
There are two price advantages, Rob, and both have to do more with operating costs than initial costs. First, utility companies don't want to send people out to read meters and turn meters on and off. That's too costly. Second, utility companies want their readings to be as accurate as possible. A 1% error multiplied by two million meters can be costly.

Rob Spiegel
User Rank
Blogger
Re: The value of the new sensors
Rob Spiegel   6/28/2012 12:58:08 PM
NO RATINGS
That's makes sense, Chuck. So what happens is the sensors help automate the collection of usage data while also making that data more accurate. So even if the sensor is more expensive, it ultimately saves dollars.

Charles Murray
User Rank
Blogger
Re: The value of the new sensors
Charles Murray   6/28/2012 8:23:56 PM
NO RATINGS
Exactly right, Rob.

curiousgeorge
User Rank
Iron
MEMS
curiousgeorge   6/29/2012 11:50:05 AM
NO RATINGS
I would like to understand more about what is new with the MEMSIC's MEMS flow sensor design. This technology (heater with two thermopiles on each side) has been around for very long time, and I believe the original patent on this approach has already expired. There are a number of other companies that have released/are releasing natural gas meters based on the exact same approach, with intergrated IC. And I do not think their claim of higher resolution is reflected on their preliminary data sheet, yet.

How do you think this MEMS technology will be perceived by the utility companies? How are the MEMS natural gas meters that have already passed the certifications doing? Any buy-ins from the utility companies?

Partner Zone
Latest Analysis
A bold, gold, open-air coupe may not be the ticket to automotive nirvana for every consumer, but Lexus’ LF-C2 concept car certainly turned heads at the recent Los Angeles Auto Show. What’s more, it may provide a glimpse of the luxury automaker’s future.
Perhaps you didn't know that there are a variety of classes, both live and archived, offered via the Design News Continuing Education Center (CEC) sponsored by Digi-Key? The best part – they are free!
Engineer comic Don McMillan explains the fun engineers have with team-building exercises. Can you relate?
The complexity of diesel engines means optimizing their performance requires a large amount of experimentation. Computational fluid dynamics (CFD) is a very useful and intuitive tool in this, and cold flow analysis using CFD is an ideal approach to study the flow characteristics without going into the details of chemical reactions occurring during the combustion.
The damage to Sony from the cyber attack seems to have been heightened by failure to follow two basic security rules.
More:Blogs|News
Design News Webinar Series
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jan 12 - 16, Programmable Logic - How do they do that?
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


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 © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service