International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 3 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
ULTRASONIC STIRRER Omkar Gavali1, Prashant Raut2, Amol Deshmukh3, Prof.P.B.Nikam4 123Students,
4Professor,
E&TC, Sanjay Ghodawat institute, Atigre, India Dept. of Electronics & Tele-communication, Sanjay Ghodawat institute, Maharashtra, India
---------------------------------------------------------------------***-------------------------------------------------------------------1.2 Ultrasound with Low Intensity
Abstract – Ultrasonic is one of the non-thermal methods which is being used for food processing in recent times. As a non-thermal technology, power ultrasound is attracting considerable interest in the food industry, with the help of mechanical vibrations of high enough intensity, power ultrasound can produce changes in food either by disturbing its structure or promoting certain chemical reactions. Ultrasound refers to sound waves, mechanical vibrations, which propagate though solids, liquids, or gases, with a frequency greater than the upper limit of human hearing is above 20 kHz. When these waves propagate into the liquid media, alternating compression and expansion cycles are produced.
Waves with low intensity: These waves are nondestructive. Their applications include milk quality control For measurement of properties, process control such as controlling fluid flow and detection of foreign bodies, etc. Presence or absence of material between a couple of transducers or between one transducer and a Refract meter can be determined by measuring the amplitude of the electrical wave. If there is a material, the amplitude of the electrical wave will reduce.
2. PROPOSED SYSTEM
Key Words: Ultrasonic Processing, PIC Timer Circuit, Auto sampling, etc
1. LM3524 IC.
1. INTRODUCTION
3. P55NF MOSFET.
2. BC 574 TRANSISTOR. 4. STEP UP & STEP DOWN TRANSFORMER.
The consumers are now demanding the performance of least Processes and a special emphasis is on the preservation of quality and sensory characteristics therefore, non-thermal milk processing and preservation are crucial. One of the current and important methods of nonthermal milk processing and preservation is the application of ultrasound waves. Man is the capable of hearing sound waves with 20 to 20000 cycles per second frequency. Sound waves with lower 20 cycles per second frequency are called “Infrasound” and a set of mechanical waves with frequencies over the range of human hearing (i.e. 20kz) are called “Ultrasonic” waves. Ultrasound techniques are used in both modification and analysis in milk industry. Other applications of ultrasound waves in milk refer to inactivation of enzymes and bacteria. There are the many possible ways to find other application of ultrasound waves over the milk industries.
5. PEIZO PLATE. 6. METAL ROD 7. PIC CONTROLLER 8. DIGITAL DISPLAY (7 SEGMENT) 9. KEY
3. BLOCK DIAGRAM DISPLAY IGITALd
PIC
RELAY
FREQUENCY GENERATOR
MOSFET
PIEZO PLATE
KEYS
1.1 Ultrasound with High Intensity
METAL ROD
Waves with high intensity: Ultrasound waves with high intensity in which high power is applied, are mainly used as a tool to change milk properties such as sterilization and microbes, cells destruction Reactions, increasing liquor preservation, etc.
© 2017, IRJET
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Impact Factor value: 5.181
TRANFORMER
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Figure -1: Block diagram of system For the experimental setup we need to require all these possible component mentioned in the block diagram. First the frequency generator uses the LM3524 IC, which is approximately produces the frequency up to the 40 kHz. This output of the IC is given to the push pull configuration of BC547 transistor, these transistor drives the MOSFET ISO 9001:2008 Certified Journal
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