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

Sensitivity Training: Considerations for Measuring Very Low Pressures

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
William K.
User Rank
Platinum
Re: Sensing those spray patterns: Not touch
William K.   1/4/2014 4:08:51 PM
NO RATINGS
Jae Son, I had not considered the case where the goal was to measure the kinetic energy of the spray particle impacts. That must have been a very interesting project indeed. Quite different from investigating fuel injector performance.

I am aware that high pressure sprays do behave differently, but I have not read much about the details of that difference. 

Jae Son
User Rank
Blogger
Re: Sensing those spray patterns: Not touch
Jae Son   1/4/2014 1:12:54 PM
NO RATINGS
William, 

Yes, you are correct that using laser light with a camera is a good way to charaterize spray patterns as the particles fly through the air, but our customers who have tried this approach wasn't satisfied due to thier needs to actually quantify the impact pressures on the surface for higher pressure sprays to seeing how the fluid accumulates and drips on the surface both of which the laser system could not quantify. 

William K.
User Rank
Platinum
Sensing those spray patterns: Not touch
William K.   12/31/2013 4:59:09 PM
NO RATINGS
Sensing spray patterns is indeed an application that would need a great deal of sensitivity if it were done with a touch sensor. But a touch sensor is a poor choice for that taskby many standards. The very best way to evaluate spay patterns is with a camera and laser light. Timed flashes can allow plotting the velocity of each particle as to both speed and direction. So why waste time attempting to use the wrong technology for the job? Just like hoping to drive screws with a hammer, the results will seldom be accept6able and the efort will always to much work.

notarboca
User Rank
Gold
Capacitive Sensing
notarboca   12/30/2013 2:33:00 PM
NO RATINGS
The capacitive sensor would seem to be the ideal way to measure droplet densities and spray coverage.

Partner Zone
More Blogs from Guest Blogs
Manufacturers of plastic parts recognize the potential of conformal cooling to reduce molding cycle times. Problem is, conformal molds require additive manufacturing (AM), and technologies in that space are still evolving. Costs also can be high, and beyond that, many manufacturing organizations lack the knowledge and expertise needed to apply and incorporate additive technologies into their operations.
Machine vision and video streaming systems are used for a variety of purposes, and each has applications for which it is best suited. This denotes that there are differences between them, and these differences can be categorized as the type of lenses used, the resolution of imaging elements, and the underlying software used to interpret the data.
In the face of growing challenges for embedded technology engineers, designers should actually be designing for a new IoT -- the Internet of Tomorrow.
As todayís product design cycles are held to tighter schedules and budget constraints, itís becoming even more critical to consider human factors up front to catch and fix problems during the initial development stages, when itís faster and less costly to do so. Overlooking human factors at the beginning of the design cycle could lead to poor user experience, a decrease in effective product performance, and an increase in safety risk to the user.
Plastic part manufacturers are always looking for ways to reduce cycle time and get more productivity out of their injection molding machinery. One of the longstanding constraints in injection molding production has been cooling time. Removing parts from the mold before they have cooled induces warping or shrinking. But wait time works against productivity.
Design News Webinar Series
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
5/7/2015 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.
May 4 - 8, Designing Low Power Systems using Battery and Energy Harvesting Energy Sources
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.
Last Archived Class
Sponsored by Proto Labs
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