Metrology
Articles
In this article, I’m looking at the relationship between capability index (Cpk or Ppk) and tolerance intervals. The capability index is tied to the specification limits, and tying this to the tolerance interval enables us to use the confidence/reliability statement allowed by the tolerance…
Read articleOne hundred years ago this month, Walter Shewhart wrote a memo that contained the first process behavior chart. In recognition of this centennial, this column reviews four different applications of the techniques that grew out of that memo.
The first principle for interpreting…
Read articleRecently, you’ve probably seen the word quantum used everywhere—in computing, in names for tech companies, and maybe even for explanations of love and consciousness.
So what is quantum? What is quantum technology? And is it worth all the hype?
First of all, what is quantum?… Read articleBecause I’m a microplastics researcher, my friends sometimes jokingly ask me, “How many microplastics do you think I consumed this week?”
I can’t give an exact answer. Unfortunately, it’s not zero.
Microplastics—the tiny plastic particles that break down from plastic…
Read articleThe aerospace industry is constantly innovating and pushing the limits of what’s possible. This puts a lot of pressure on manufacturers to ensure their airplanes are top-notch in quality, safety, and efficiency. To meet these demands, the industry is undergoing a significant transformation,…
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