LMEC-7 Pohl's Pendulum
Farashin LMEC-7Pohl's Pendulum
Gwaje-gwaje
1.Free oscillation - ma'aunin ma'auni tsakanin girman ma'auni na ma'auni θ da lokacin oscillation kyauta T.
2.Determination na damping factor β.
3.Determination na amplitude-mita halayyar da kuma lokaci-mita halaye masu lankwasa na tilasta vibrations.
4.Study na sakamakon daban-daban damping a kan tilasta vibrations da kuma lura da resonance mamaki mamaki.
5.Koyi don amfani da hanyar stroboscopic don tantance wasu adadin abubuwan motsi, kamar bambance-bambancen lokaci.
Babban Bayani
| Spring stubbornness factor K | kasa da 2% canji a cikin lokacin jijjiga kyauta |
| Ma'aunin lokaci | daidaito 0.001s, kuskuren ma'aunin zagayowar 0.2% |
| Pendulum na injina | tare da ramummuka masu nuni, indexing 2°, radius 100 mm |
| Girman awo | kuskure ± 1° |
| Photoelectric Sensor A | gano siginonin photoelectric sau biyu |
| Photoelectric Sensor B | gano siginar hoto guda ɗaya |
| Gudun mota (tilasta mita). | 30 - 45 rpm kuma ci gaba da daidaitawa |
| Rashin kwanciyar hankali da sauri | kasa da 0.05%, yana tabbatar da ingantaccen zagayowar gwaji |
| Tsarin damping | kasa da 2° kowace rubewar amplitude |
Cikakkun bayanai
Abubuwan da aka gyara na tsarin: Na'urar gwaji ta Pohl resonance, Pohl resonance na'urar gwaji, taron filasha daban, firikwensin hoto 2 (daya kowane nau'in A da nau'in B)
Pohl resonance saitin gwaji.
1. Factor stubbornness factor K: kasa da 2% canji a cikin free vibration lokaci.
2. Ma'auni na lokaci (10 cycles): daidaito 0.001s, kuskuren ma'auni 0.2%.
3. Tsarin damping in babu electromagnetic damping: kasa da 2 ° kowace amplitude lalata.
4. Injin pendulum: tare da ramummuka na ƙididdigewa, ƙididdigewa 2 °, radius 100 mm.
5. Girman girman: kuskure ± 1 °; Hanyar auna girman girman: ganowar hoto.
6. Photoelectric firikwensin A: gano siginar hoto biyu; firikwensin photoelectric B: gano siginar hoto guda ɗaya.
7. Motar motsa jiki (tilasta mita): 30 - 45 rpm da ci gaba da daidaitawa.
8. Rashin kwanciyar hankali na motsi: ƙasa da 0.05%, tabbatar da ingantaccen sake zagayowar gwaji.
9. Tabbatar da bambancin lokaci.
Hanyoyi biyu na ƙayyadaddun bambance-bambancen lokaci: stroboscopic da metrological, tare da karkatacciyar ƙasa da 3 ° tsakanin hanyoyin biyu.
Matsakaicin ma'auni na hanyar metrological tsakanin 50 ° da 160 °.
Ma'aunin Stroboscopic tsakanin 0 ° da 180 °; maimaita ma'auni <2°.
10. Filashi: ƙarancin wutar lantarki, walƙiya daban da naúrar gwaji, 2ms ci gaba da lokacin walƙiya, jan ido mai launi.
11. Ƙananan ƙararrawa, babu damuwa ko rashin jin daɗi yayin gwajin rukuni.
Pohl resonance mai sarrafa gwaji.
1. Ana amfani da mai sarrafa gwaji na musamman don tattarawa da nuna bayanai; Ana amfani da babban nunin LCD mai digo-matrix, tare da menus don jagorantar gwajin, bayanin kula (littafin koyarwar lantarki), da nunawa da duba bayanan gwaji.
2. Ƙaddamar da keɓancewa na sarrafawa don strobes.
