In the blog entitled The Lowdown on Dirt, the three basic classes of contaminants were described. They are – soluble, particulate and a mixture of soluble and particulate. There are, of course many hybrids and permutations but for purposes of discussing the ultrasonic effect on cleaning we’ll limit to these three for now. Later on we can …
The preceding blog addressed the most common service issue with ultrasonic equipment, the ultrasonic generators, along with Preventive Maintanance measures that can help minimize generator failure events. Today’s blog will cover additional Preventive Maintenance measures which apply not only to ultrasonic cleaning equipment but to the broader range of cleaning equipment of all types as …
Reader’s Questions The blog welcomes reader’s questions and comments related to cleaning. Just forward questions or comments to jfuchs@ctgclean.com. Provided I know the answer to your question, I will either answer it by email or, if the question is of general interest, I will answer it in the blog. If I don’t know the …
In the blog Cavitation 101, cavitation in liquids was described as the backbone of ultrasonic cleaning. Cavitation by itself, however, is not the end of the story. Although cavitation is the backbone, the real work is accomplished by the implosion of cavitation bubbles. Cavitation bubbles are, in essence, pockets of vacuum or vapor of the surrounding …
Cavitation of liquid due to high amplitude ultrasonic vibration within the liquid is the backbone of ultrasonic cleaning. Liquids have the unique ability to cavitate. In order to cavitate, a material must exhibit three properties – It must be relatively inextensible and uncompressible. It can’t be able to stretch or expand or be compressed to significantly change …
Two of the major variables in the production of mechanical vibration are frequency and amplitude. The consequences of frequency variation were discussed in a preceding blog. Today’s blog concentrates on amplitude and the power implications of varying either or both frequency and amplitude. As discussed in the blog titled Ultrasonics-Sound-Amplitude, the amplitude of a vibration …
The illustration initially posted in the blog for November 2, 2011 was incorrect. The acceleration curve had the wrong sign. The post has been corrected accordingly. I regret any confusion this error on my part may have caused. – FJF –
In the world of everyday sound, things happen in a fairly predictable way. Sound vibrations are created, transmitted and received in textbook fashion. As vibrational frequencies and or amplitudes are increased, however, that picture changes quite dramatically. In earlier blogs, we learned that as the frequency of sound (vibrational energy) is increased, the number of cycles …
Ultrasonics is generally described as the technology of sound above the range of human hearing. The use of the term “sound,” however, is questionable since “sound” would imply something we (humans) can hear. It all comes down to the question asking, “If a tree falls in a forest and there is no one there to hear …
Before I start applying all of our new knowledge about sound to a discussion of ultrasonics, I thought I would interject this little tidbit of useful information about power configurations. Despite the fact that most companies employ skilled electricians, many of the people involved in specifying and designing cleaning (and other) equipment that uses electrical …
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