That's a great observation, Pubudu - periodic checks are always valuable to ensure that the sensors are calibrated according to their original specs. Their position in the system and the type of system (production versus monitoring for example) will certainly have an effect on deciding what procedures should be put in place to ensure accuracy.
Very interesting and informative article. As a test engineer, sensor selection is often a task that must be addressed. Often our test sets are for new products which brings a whole new set of variables to consider. I particularly appreciated the statement, "A specific concern at this point is an awareness of the material being measured and its potential impact on the level sensor over time." It is so important to understand and account for every possible variable not only for the initial build, but also for its performance over time. Excellent list of what to consider in level measurenent device seection which can also be adjusted to fit a variety of sensor applications.
A middle school team from Rochester, Mich., has again nabbed the grand prize in the annual international Future City Competition, which drew students from 37 regions of the United States, as well as from England and China.
The word “smart” is becoming the dumbest word around. It has been applied to almost every device and system in our homes. In addition to smartphones and smart meters, we now hear about smart clothing and smart shoes, smart lights, smart homes, smart buildings, and every trendy city today has its smart city project. Just because it has a computer inside and is connected to the Web, does not mean it is smart.
Are you being paid enough? Do you want a better job? According to a recent survey Manpower released just before Engineers Week, employers and engineers don't see eye-to-eye about the state of US engineers' skills and experience.
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