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The Choice of Frequency is a Major Consideration during Ultr

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Patient
Posted by: hujluni  (8 years ago)
The Choice of Frequency is a Major Consideration during Ultrasonic Cleaning

The mouth is the part of the body that contains the most bacteria and germs, so cleaning the tools properly to kill all of the germs is a necessity. To ensure proper cleaning of dentist office tools, an ultrasonic cleaner is used. These cleaners are also used to clean items such as jewelry and golf clubs. This machine uses ultrasound waves and special cleaning fluids in order to clean items. The unique cleaning machine generates dental equipment australia high frequency sound waves to disturb a liquid. This causes dirt or any substance to be released from any objects. It can clean any delicate item safely and correctly to insure its cleanliness. For a Compact Cleaner the whole cleaning cycle only takes about three to six minutes. This is very convenient for dentist’s offices because they need to be able to clean tools quickly in between patients so they do not need to buy multiple sets of cleaning tools. They are much smaller than an industrial ultrasonic cleaner and can usually be found sitting on a counter in any dentist office. These machines are also available to purchase for in home use for such things as jewelry. Ultrasonic cleaning equipment companies recommend using either water or a special water based solution to use inside of the machine while in use.

The choice of frequency is a major consideration in the process ultrasonic cleaner of ultrasonic cleaning. Frequency plays a critical role in determining the size of bubbles produced in the cleaning liquid. These bubbles ultimately create the agitation used by ultrasonic cleaner. Industrial ultrasonic cleaners operate at a variety of frequencies to accomplish a multitude of cleaning tasks in a wide range of industries. Low frequencies produce larger bubbles resulting in higher agitation energy and work well for heavy, coarse contaminants. Higher frequencies produce smaller bubbles and work best for fine particles or cleaning very small features.

However, operating continuously at a single frequency can produce problems. A fixed frequency can produce standing waves or harmonic vibration which may damage delicate parts. Harmonic vibrations are what allows the opera singer Dental Loupes (at least in theory) to break the goblet. To prevent ultrasonic cleaning from damaging objects being cleaned, the ultrasonic generator’s frequency may be swept back and forth over a small range of frequencies. By varying the frequency slightly above and below the central frequency, typically by 1-4 kHz, the risk of damage due to standing wasves or harmonic vibration during ultrasonic cleaning is eliminated.

Choosing the right combination of frequency, range of frequency, as well as temperature and liquid to be used in a specific cleaning application can be challenging.


This article is from http://www.zeta-dental.com.au/article-633-The-Choice-of-Frequency-is-a-Major-Consideration-during-Ultrasonic-Cleaning.html

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