LMEC-7 Pohl's Pendulum
LMEC-7Pohl's Pendulum
Fa'ata'ita'iga
1. Free oscillation - fuaina o le fesoʻotaʻiga i le va o le amplitude o le paleni uili θ ma le vaitaimi ole oscillation saoloto T
2. Fuafuaga o le vaega faʻafefe β.
3.Determination o le amplitude-ausau masani uiga ma le vaega-auau masani pupuni o vibration faamalosia.
4.Su'esu'e o le a'afiaga o le fa'afefete ese'ese i luga o fa'amalosi fa'amalosi ma le mata'ituina o mea fa'atupu fa'alavelave.
5. Aʻoaʻo e faʻaoga le auala stroboscopic e fuafua ai ni aofaʻi o mea feʻaveaʻi, e pei o eseesega o vaega.
Fa'amatalaga Autu
| Ole fa'ama'a'a ole tautotogo K | itiiti ifo i le 2% suiga ole taimi vibration saoloto |
| Fua taimi | sa'o 0.001s, fa'ata'amilosaga mea sese 0.2% |
| Pendulum masini | fa'atasi ai ma avanoa fa'asinomaga, fa'asinomaga 2°, radius 100 mm |
| Fuaina o le amplitude | sese ±1° |
| Fa'ata'i eletise A | su'esu'eina o fa'ailo fa'a-photoelectric fa'alua |
| fa'alogo eletise B | su'esu'eina o fa'ailo fa'a-photoelectric e tasi |
| Saosaoa afi (fa'amalosi taimi) va'aiga | 30 - 45 rpm ma fa'aauau ona fetu'una'i |
| Fa'aletonu ole saoasaoa ole afi | itiiti ifo i le 0.05%, faʻamautinoaina se taamilosaga o suʻega mautu |
| Fa'asusu faiga | itiiti ifo i le 2° i le amplitude pala |
Fa'amatalaga
Vaega o faiga: Pohl resonance faʻataʻitaʻiga masini, Pohl resonance faʻataʻitaʻiga faʻataʻitaʻiga, faʻapipiʻi moli eseese, 2 photoelectric sensor (tasi taʻitasi o le ituaiga A ma le ituaiga B)
Pohl resonance faʻataʻitaʻiga seti.
1. Spring stubbornness factor K: itiiti ifo i le 2% suiga i le free vibration period.
2. Fua taimi (10 ta'amilosaga): sa'o 0.001s, fa'aletonu le fuaina o le ta'amilosaga 0.2%.
3. System damping i le leai o electromagnetic damping: itiiti ifo i le 2 ° i le amplitude pala.
4. Mechanical pendulum: fa'atasi ai ma fa'ailoga fa'asinomaga, fa'asino igoa 2°, radius 100 mm.
5. Fuaina o le amplitude: sese ± 1 °; auala fuaina amplitude: photoelectric iloa.
6. Photoelectric sensor A: suʻesuʻeina o faʻailoga faʻataʻitaʻi lua; fa'alogo eletise B: su'esu'eina o fa'ailo fa'aata e tasi.
7. Saosaoa afi (fa'amalosi taimi) va'aiga: 30 - 45 rpm ma fa'aauau ona fetu'una'i.
8. Faʻaletonu le saoasaoa o afi: itiiti ifo i le 0.05%, faʻamautinoaina se taamilosaga o suʻega mautu.
9. Fuafuaga o le eseesega o vaega.
E lua metotia o le eseesega o vaega: stroboscopic ma metrological, faatasi ai ma se eseesega o lalo ifo o le 3 ° i le va o auala e lua.
Ole fua ole auala ole metrological ile va ole 50° ma le 160°.
Ole fua ole stroboscopic ile va ole 0° ma le 180°; fa'asolosolo fua fa'aletonu <2°.
10. Uila: ta'avale eletise maualalo, moli e ese mai le iunite fa'ata'ita'i, 2ms fa'aauau taimi moli, lanu mumu mata.
11. Le pisapisao maualalo, leai se fa'alavelave po'o le fa'alavelave i le taimi o fa'ata'ita'iga a vaega.
Pohl resonance fa'ata'ita'iga fa'atonu.
1. E faʻaaogaina se faʻataʻitaʻiga faʻapitoa e aoina ma faʻaalia faʻamatalaga; o lo'o fa'aogaina se fa'aaliga LCD mata'itusi tele, fa'atasi ai ma menus e ta'ita'ia ai le fa'ata'ita'iga, fa'amatalaga fa'amalosi (tusi fa'atonuga fa'aeletonika), ma fa'aali ma toe siaki fa'amaumauga fa'ata'ita'iga.
2. Fa'atonu fa'atonuga fa'atonu mo strobes.
