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©Cleaning Technologies Group. Sound... Sound Is Vibration Transmitted Through an Elastic Material UltraSound... Sound at a Higher Frequency Sound UltraSound.

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Presentation on theme: "©Cleaning Technologies Group. Sound... Sound Is Vibration Transmitted Through an Elastic Material UltraSound... Sound at a Higher Frequency Sound UltraSound."— Presentation transcript:

1 ©Cleaning Technologies Group

2 Sound... Sound Is Vibration Transmitted Through an Elastic Material UltraSound... Sound at a Higher Frequency Sound UltraSound ©Cleaning Technologies Group

3 Sound is Created by a Source of Vibration Think of the black line above as the edge view of a metal plate ©Cleaning Technologies Group

4 Sound is Created by a Source of Vibration Now Imagine an “Ultrasonic Transducer” Attached to the Metal Plate Ultrasonic Transducer ©Cleaning Technologies Group

5 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate Ultrasonic Transducer ©Cleaning Technologies Group

6 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

7 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

8 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

9 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

10 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

11 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

12 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

13 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

14 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

15 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

16 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

17 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

18 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

19 Sound is Created by a Source of Vibration The Ultrasonic Transducer Vibrates and Transmits Vibration to the Metal Plate ©Cleaning Technologies Group

20 Now Imagine that the Metal Plate is the Bottom of a Vessel or “Tank” ©Cleaning Technologies Group

21 Now Imagine that the Metal Plate is the Bottom of a Vessel or “Tank” ©Cleaning Technologies Group

22 And that the Tank is Filled with Liquid ©Cleaning Technologies Group

23 And that the Tank is Filled with Liquid ©Cleaning Technologies Group

24 Now Let’s Re-Start the Vibration ©Cleaning Technologies Group

25 Now Let’s Re-Start the Vibration ©Cleaning Technologies Group

26 Now Let’s Re-Start the Vibration ©Cleaning Technologies Group

27 Now Let’s Re-Start the Vibration ©Cleaning Technologies Group

28 Now Let’s Re-Start the Vibration ©Cleaning Technologies Group

29 Now Let’s Re-Start the Vibration ©Cleaning Technologies Group

30 As the tank bottom raises, it pushes against the liquid thereby compressing it. The blue represents an area of “compression”. ©Cleaning Technologies Group

31 The “compression” continues to travel through the liquid away from the source of vibration. ©Cleaning Technologies Group

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40 As the tank bottom lowers it “pulls” on the liquid creating an area of negative pressure or “rarefaction” ©Cleaning Technologies Group

41 Continued vibration generates areas of compression and rarefaction radiating through the liquid ©Cleaning Technologies Group

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65 + - 0 Now add a pressure gauge to measure pressure at a given point in the liquid ©Cleaning Technologies Group

66 + - 0 As the rarefactions and compressions of the sound waves pass by, the gauge sees alternating negative and positive pressure ©Cleaning Technologies Group

67 + - 0 As the rarefactions and compressions of the sound waves pass by, the gauge sees alternating negative and positive pressure ©Cleaning Technologies Group

68 + - 0 As the rarefactions and compressions of the sound waves pass by, the gauge sees alternating negative and positive pressure ©Cleaning Technologies Group

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91 A vibrating source transmits sound waves to a liquid. Sound waves, consisting of areas of rarefaction (negative pressure) and compression (positive pressure), radiate through the liquid away from the source of vibration. ©Cleaning Technologies Group

92 + - 0 Imagine now a small defect in the liquid consisting of a bubble or speck of dirt. ©Cleaning Technologies Group

93 The a “cavitation bubble” starts to grow around the defect under influence of negative pressure ©Cleaning Technologies Group

94 + - 0 Growth of the “cavitation bubble” continues and accelerates under increasingly negative pressure ©Cleaning Technologies Group

95 + - 0 Growth of the “cavitation bubble” continues and accelerates under increasingly negative pressure ©Cleaning Technologies Group

96 + - 0 Growth of the “cavitation bubble” continues and accelerates under increasingly negative pressure ©Cleaning Technologies Group

97 + - 0 Growth of the “cavitation bubble” continues and accelerates under increasingly negative pressure ©Cleaning Technologies Group

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99 The “cavitation bubble” shrinks under the influence of growing positive pressure ©Cleaning Technologies Group

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101 + - 0 The catastrophic collapse of the cavitation bubble under increasing pressure results in implosion! ©Cleaning Technologies Group

102 + - 0 The high energy resulting from the implosion of millions of cavitation bubbles do the work associated with ultrasonics ©Cleaning Technologies Group

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