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PL424095A1 - Coupled pendulums - Google Patents

Coupled pendulums

Info

Publication number
PL424095A1
PL424095A1 PL424095A PL42409517A PL424095A1 PL 424095 A1 PL424095 A1 PL 424095A1 PL 424095 A PL424095 A PL 424095A PL 42409517 A PL42409517 A PL 42409517A PL 424095 A1 PL424095 A1 PL 424095A1
Authority
PL
Poland
Prior art keywords
coils
attached
pair
threads
amplifier
Prior art date
Application number
PL424095A
Other languages
Polish (pl)
Other versions
PL236203B1 (en
Inventor
Stanisław Bednarek
Original Assignee
Uniwersytet Łódzki
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 Uniwersytet Łódzki filed Critical Uniwersytet Łódzki
Priority to PL424095A priority Critical patent/PL236203B1/en
Publication of PL424095A1 publication Critical patent/PL424095A1/en
Publication of PL236203B1 publication Critical patent/PL236203B1/en

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  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

Przedmiotem zgłoszenia są wahadła sprzężone, mające zastosowanie w laboratoriach fizycznych do badania drgań chaotycznych o charakterze deterministycznym, w których występują dudnienia. Wahadła sprzężone zawierają podstawę (1) z przymocowanymi do niej pionowymi słupkami (2, 3), których wierzchołki połączone są ze sobą poziomą belką (4). Do podstawy (1) przymocowane są poziomo dwa magnesy pierścieniowe (5, 6) o takich samych rozmiarach, zaś do belki przymocowane są górne końce dwóch nierozciągliwych nici (7, 8). Na dolnych końcach każdej z tych nici przymocowane zostały pary współosiowych, cylindrycznych cewek (9, 10, 11, 12), składające się z dolnej cewki napędowej (9), albo (10) oraz górnej cewki sygnałowej (11), albo (12). Cewka sygnałowa (9) z pierwszej pary cewek połączona jest z wejściem pierwszego wzmacniacza (13) operacyjnego, a cewka napędowa (10) drugiej pary cewek przyłączona do wyjścia tego wzmacniacza. Z kolei cewka sygnałowa (12) z drugiej pary cewek połączona jest z wejściem drugiego wzmacniacza operacyjnego (14), a cewka napędowa (9) z pierwszej pary cewek przyłączona jest do wyjścia tego wzmacniacza. Wszystkie przewody łączące cewki (9, 10, 11, 12) ze wzmacniaczami operacyjnymi (13, 14) są giętkie i przymocowane w dolnej części do nierozciągliwych nici (7, 8), na których zawieszone są cewki (9, 10, 11, 12).The subject of the application are coupled pendulums, used in physical laboratories to study chaotic vibrations of a deterministic nature, in which rumble occurs. Coupled pendulums contain a base (1) with vertical posts attached to it (2, 3), whose tops are connected with each other by a horizontal beam (4). Two ring magnets (5, 6) of the same size are horizontally attached to the base (1), and the upper ends of two non-stretchable threads (7, 8) are attached to the beam. At the lower ends of each of these threads, pairs of coaxial, cylindrical coils (9, 10, 11, 12) were attached, consisting of the lower driving coil (9) or (10) and the upper signal coil (11) or (12) . The signal coil (9) from the first pair of coils is connected to the input of the first operational amplifier (13), and the driving coil (10) of the second pair of coils is connected to the output of this amplifier. In turn, the signal coil (12) from the second pair of coils is connected to the input of the second operational amplifier (14), and the driving coil (9) from the first pair of coils is connected to the output of this amplifier. All the wires connecting the coils (9, 10, 11, 12) with the operational amplifiers (13, 14) are flexible and attached in the lower part to the unstretchable threads (7, 8), on which the coils are suspended (9, 10, 11, 12 ).

PL424095A 2017-12-28 2017-12-28 Coupled pendulums PL236203B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL424095A PL236203B1 (en) 2017-12-28 2017-12-28 Coupled pendulums

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL424095A PL236203B1 (en) 2017-12-28 2017-12-28 Coupled pendulums

Publications (2)

Publication Number Publication Date
PL424095A1 true PL424095A1 (en) 2019-07-01
PL236203B1 PL236203B1 (en) 2020-12-28

Family

ID=67105475

Family Applications (1)

Application Number Title Priority Date Filing Date
PL424095A PL236203B1 (en) 2017-12-28 2017-12-28 Coupled pendulums

Country Status (1)

Country Link
PL (1) PL236203B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07219424A (en) * 1994-02-07 1995-08-18 Osamu Nakamura Experimental tool for multiple suspension pendulums and weight, slide rail, weight height display tool, pendulum length measuring tool, weight suspension cord and suspension cord guide rod
US5895221A (en) * 1997-08-29 1999-04-20 Bison Investments Ltd. Dual action double pendulum
CN2452071Y (en) * 2000-11-10 2001-10-03 清华大学 Magnetic chaos pendulum with computer interface
KR20110049291A (en) * 2009-11-05 2011-05-12 이상일 Resonance Measurement Method of Chaos System Using Connected Chaos Pendulum
PL211193B1 (en) * 2006-05-04 2012-04-30 Univ Łodzki Chaotic pendulum

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07219424A (en) * 1994-02-07 1995-08-18 Osamu Nakamura Experimental tool for multiple suspension pendulums and weight, slide rail, weight height display tool, pendulum length measuring tool, weight suspension cord and suspension cord guide rod
US5895221A (en) * 1997-08-29 1999-04-20 Bison Investments Ltd. Dual action double pendulum
CN2452071Y (en) * 2000-11-10 2001-10-03 清华大学 Magnetic chaos pendulum with computer interface
PL211193B1 (en) * 2006-05-04 2012-04-30 Univ Łodzki Chaotic pendulum
KR20110049291A (en) * 2009-11-05 2011-05-12 이상일 Resonance Measurement Method of Chaos System Using Connected Chaos Pendulum

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FIZYKA.UMK.PL, Retrieved from the Internet <URL:http://FIZYKA.UMK.PL/-MIREKB/IPF_ZAD_16.PDF> *

Also Published As

Publication number Publication date
PL236203B1 (en) 2020-12-28

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