As discussed in a previous blog, one problem with watts is that watts do not equal energy. Let’s carry that thought a little further again using the vehicle analogy I put forth in the initial blog of this series. In the ultrasonic world it is common to associate the effectiveness of an ultrasonic cleaning tank its …
We in the ultrasonics industry have long been aware of an effect which is sometimes called “ultrasonic shadowing.” In general, this is what happens when parts being cleaned are positioned in such a way that parts cast an “ultrasonic shadow” which prevents parts in the shadow from being effectively cleaned. This phenomenon, although we know …
Some time ago I wrote a paper entitled “What is a Watt.” Although this paper seems lost in history (I can not find a copy of it), I can remember the point that I was trying to make when I wrote it. In essence, it made the case that a watt is only an instantaneous …
I usually try to make sure I’ve done my research prior to posting a blog. As I was thinking about the post about the ceramic ring test, however, it occurred to me that there are a couple of variables that I had not previously considered – – the pencil and the means of applying the markings to the …
Other than to say that there is no perfect, infallible way, the blog has not addressed assessing ultrasonic performance. In an earlier blog, I did suggest that any of many methods are appropriate to compare ultrasonic performance of an ultrasonic system from day to day but that no further inference should be made. One test that’s …
One of the problems with using the number of watts consumed to produce a particular output of another form of energy (light, motion, heat, etc) is that there are always losses when one form of energy is converted to another. Although the law of conservation of energy always applies, energy lost in conversion to other forms of …
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