SU817809A1 - Rod-type ultrasonic oscillatory system - Google Patents

Rod-type ultrasonic oscillatory system Download PDF

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Publication number
SU817809A1
SU817809A1 SU782625551A SU2625551A SU817809A1 SU 817809 A1 SU817809 A1 SU 817809A1 SU 782625551 A SU782625551 A SU 782625551A SU 2625551 A SU2625551 A SU 2625551A SU 817809 A1 SU817809 A1 SU 817809A1
Authority
SU
USSR - Soviet Union
Prior art keywords
rod
oscillatory system
type ultrasonic
transducer
ultrasonic oscillatory
Prior art date
Application number
SU782625551A
Other languages
Russian (ru)
Inventor
Петр Егорович Васильев
Всеволод Феодосьевич Казанцев
Леонард Леонидович Карманов
Original Assignee
Специальное Проектно-Конструкторскоеи Технологическое Бюро Малых Элект-Рических Машин Производственногообъединения "Эльфа"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Специальное Проектно-Конструкторскоеи Технологическое Бюро Малых Элект-Рических Машин Производственногообъединения "Эльфа" filed Critical Специальное Проектно-Конструкторскоеи Технологическое Бюро Малых Элект-Рических Машин Производственногообъединения "Эльфа"
Priority to SU782625551A priority Critical patent/SU817809A1/en
Priority to DE19792914434 priority patent/DE2914434C2/en
Priority to GB7921601A priority patent/GB2023965B/en
Priority to JP8005879A priority patent/JPS555792A/ja
Priority to NL7904967A priority patent/NL7904967A/en
Priority to FR7916462A priority patent/FR2430159A1/en
Application granted granted Critical
Publication of SU817809A1 publication Critical patent/SU817809A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B3/00Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

The invention relates to an ultrasonic oscillating system having a longitudinal oscillation transducer (1) joined to a quarter-wave member (2). The (1) has a length equal to a half wavelength of the resonance oscillation of the system, and the cross- sections of the transducers (1) and the member (2) are such that the wave impedance of the member (2) does not exceed one fifth of the wave impedance of the transducer (1). <IMAGE>

Description

(54) СТЕРЖНЕВАЯ УЛЬТРАЗВУКОВАЯ КОЛЕБАТЕЛЬНАЯ(54) STEM ULTRASONIC VIBRATIONAL

СИСТЕМАSYSTEM

колебательную систему и при выполннии услови oscillatory system and when fulfilling the conditions

рс р с .RS p with.

где р - плотность пьезоэлемента; с - скорйсть распространени where p is the density of the piezoelectric element; c - speed spread

звука в пьезоэлементе; с - скорость накладок; р - скорость распространени  звука в накладках.sound in the piezoelectric element; c is the overlap speed; p is the speed of sound propagation in the linings.

Резонансна  частота преобразовател  определ етс  из услови The resonant frequency of the converter is determined from the condition

klg- kl + kl2 № где k - волновое числодлина одной из накладок;klg- kl + kl2 No. where k is the wave number of one of the slips;

II

длина пьезоэлемента;length of the piezoelectric element;

длина второй накладки. Если к такому преобразователю присоединить стержень меньшего сечени , то в зависимости от изменени  волновой длины 1 этого стержн  будет измен тьс  нагрузка на составной преобразователь . При k реактивна  компонента вносимо нагрузки обращаетс  в нуль, а активна  нагрузка оптимальна. Однако при достаточно малой площади сечени  (как показывают эксперименты, эта площадь должна составл ть не более 1/5 площади поперечного сечени  преобразовател ) четвертьволнового стержн  вносима  нагрузка будет мала, а поэтому амплитуда колебаний составного пьезопреобразовател  в месте его соединени  со стержнем уменьшитс  незначительно. Преимущество предлагаемой колебательной системы в сравнении с известными заключаетс  в уменьшении вли ни  нагрузки на величину амплитуды колебаний преобразовател . Это достигаетс  за счет совмещени  узловой зоны четвертьволнового волновода с зоной максимальных смещений составного преобразовател . Испытани  показали, что коэффициент усилени  колебаний в предлагаемой системе в 2-3 раза выше, чем в известных.the length of the second lining. If a rod of smaller cross section is attached to such a converter, then depending on the change in the wavelength 1 of this rod, the load on the composite converter will change. At k, the reactive component of the applied load vanishes and the active load is optimal. However, with a sufficiently small cross-sectional area (as experiments show, this area should be no more than 1/5 of the transducer cross-sectional area) of a quarter-wave rod, the applied load will be small, and therefore the amplitude of oscillations of the composite piezoelectric transducer in the place of its connection with the rod will decrease slightly. The advantage of the proposed oscillatory system in comparison with the known ones is to reduce the influence of the load on the magnitude of the oscillation amplitude of the converter. This is achieved by combining the nodal zone of a quarter-wave waveguide with the zone of maximum displacement of the composite transducer. Tests have shown that the amplification factor of oscillations in the proposed system is 2-3 times higher than in the known ones.

Claims (2)

1.Меркулов Л.Г. Теори  ультразвковых концентратов.- Акустический журнал, 1957, т. 3, вып. 3,1.Merkulov L.G. Theory of ultrasound concentrates. - Acoustic Journal, 1957, v. 3, vol. 3, с. 230-238.with. 230-238. 2.Авторское свидетельство СССР2. USSR author's certificate № 121606, кл. В 06 В 1/08 (прототипNo. 121606, cl. B 06 B 1/08 (prototype УHave
SU782625551A 1978-06-26 1978-06-26 Rod-type ultrasonic oscillatory system SU817809A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SU782625551A SU817809A1 (en) 1978-06-26 1978-06-26 Rod-type ultrasonic oscillatory system
DE19792914434 DE2914434C2 (en) 1978-06-26 1979-04-10 Rod ultrasonic transducer
GB7921601A GB2023965B (en) 1978-06-26 1979-06-21 Rod type ultrasonic oscillating system
JP8005879A JPS555792A (en) 1978-06-26 1979-06-25
NL7904967A NL7904967A (en) 1978-06-26 1979-06-26 BAR TYPE ULTRASONIC OSCILLATION DEVICE.
FR7916462A FR2430159A1 (en) 1978-06-26 1979-06-26 OSCILLATORY SYSTEM WITH RODS ULTRA-SOUNDS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782625551A SU817809A1 (en) 1978-06-26 1978-06-26 Rod-type ultrasonic oscillatory system

Publications (1)

Publication Number Publication Date
SU817809A1 true SU817809A1 (en) 1981-03-30

Family

ID=20768850

Family Applications (1)

Application Number Title Priority Date Filing Date
SU782625551A SU817809A1 (en) 1978-06-26 1978-06-26 Rod-type ultrasonic oscillatory system

Country Status (6)

Country Link
JP (1) JPS555792A (en)
DE (1) DE2914434C2 (en)
FR (1) FR2430159A1 (en)
GB (1) GB2023965B (en)
NL (1) NL7904967A (en)
SU (1) SU817809A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6099183A (en) * 1983-11-02 1985-06-03 Nitto Electric Ind Co Ltd Photo-crosslinkable pressure-sensitive adhesive composition
JP2714261B2 (en) * 1990-12-14 1998-02-16 キヤノン株式会社 Transducer and vibration device
EP0682725A1 (en) * 1993-02-04 1995-11-22 Vaupel Textilmaschinen Kg Device for ultrasonic cutting and/or ultrasonic welding of webs
KR100376137B1 (en) 2000-12-15 2003-03-15 한국과학기술연구원 Ring-type Piezoelectric Ultrasonic Motor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL195736A (en) * 1954-03-19
US3331589A (en) * 1965-02-08 1967-07-18 Frederick G Hammitt Vibratory unit with seal
US3368085A (en) * 1965-11-19 1968-02-06 Trustees Of The Ohio State Uni Sonic transducer
US3524085A (en) * 1968-05-09 1970-08-11 Branson Instr Sonic transducer
GB1430227A (en) * 1973-03-07 1976-03-31 Taga Electric Co Ltd Transducers
JPS5140089A (en) * 1974-09-30 1976-04-03 Toyoda Chuo Kenkyusho Kk CHOONPAHENKANKI

Also Published As

Publication number Publication date
FR2430159B1 (en) 1983-11-04
FR2430159A1 (en) 1980-01-25
NL7904967A (en) 1979-12-28
JPS555792A (en) 1980-01-16
GB2023965A (en) 1980-01-03
DE2914434A1 (en) 1980-01-03
DE2914434C2 (en) 1986-03-27
GB2023965B (en) 1983-02-23

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