DEVICE FOR GENERATING AN ULTRASOUND FIELD IN THE LIQUIDS IN VESSELS WITH NARROW APERTURES
The invention relates to a device for generating an ultrasound field in liquids, which is applied in the chemistry field for intensifying and accelerating the chemical reactions in solutions, for mixing solutions in vessels with narrow apertures and the like. According to the invention, the device i...
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Main Authors | , , |
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Format | Patent |
Language | English Romanian |
Published |
30.07.2010
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a device for generating an ultrasound field in liquids, which is applied in the chemistry field for intensifying and accelerating the chemical reactions in solutions, for mixing solutions in vessels with narrow apertures and the like. According to the invention, the device is supplied from a 220 V network by means of a stabilized voltage rectifier (RED) furnishing a supply voltage (U2) to some integrated circuits (CI1 and CI2) and a voltage (U1) to a voltage step up transformer (TR1), the first integrated circuit (CI1) playing the role of an adjustable frequency pulse oscillator and furnishing at the output a signal which is applied to the second integrated circuit (CI2) which achieves a duty factor of 1:2, the signal furnished at the output being applied to a pre-amplifier which is carried out with a transistor (T1), then the signal is applied to a power amplifier which is carried out with another transistor (T2), in whose collector there is mounted the voltage step up transformer (TR1) in whose secondary there are produced the high voltage oscillations which supply an emitting piezoceramic transducer (TPU) which carries out the conversion of the electrical energy into mechanical energy as mechanical vibrations.
Invenţia se referă la un dispozitiv pentru generarea unui câmp ultrasonic în lichide cu aplicaţii în domeniul chimiei, pentru intensificarea şi accelerarea reacţiilor chimice în soluţii, mixarea soluţiilor aflate în recipiente cu orificii înguste şi altele asemenea. Dispozitivul conform invenţiei este alimentat de la o reţea de 220 V, prin intermediul unui redresor stabilizat de tensiune (RED), care furnizează o tensiune de alimentare (U2) unor circuite integrate (CI1 şi CI2), şi o tensiune (U1) unui transformator (TR1) ridicător de tensiune, primul circuit integrat (CI1) având rol de oscilator de impulsuri cu frecvenţă reglabilă şi furnizând la ieşire un semnal care se aplică celui de-al doilea circuit integrat (CI2), ce realizează un factor de umplere de 1 : 2, semnalul furnizat la ieşire fiind aplicat unui preamplificator realizat cu un tranzistor (T1), apoi unui ampificator de putere, realizat cu alt tranzistor (T2), în colectorul căruia este montat transformatorul (TR1) ridicător de tensiune în secundarul căruia se produc oscilaţii de înaltă tensiune, care alimentează un traductor (TPU) piezoceramic emiţător, ce realizează conversia energiei electrice în energie mecanică, sub formă de vibraţii mecanice. |
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Bibliography: | Application Number: RO20080000712 |