Edge Stress Meter
Polarization analyzer yakajeka aperture: 70mm
Chiedza chechiedza: Chiedza che LED
Simba: 2 #1 mabhatiri akaoma
Polarization analyzer scale dial resolution: 2 °
Kureba kwenzvimbo yekuyera: 30mm
Polarizer axis ndeye 45 degree;Quarter-wave direction yekunonoka ray ndeye 45 degree.Analyzer axis ndeye -45 dhigirii.Sample inoiswa pakati pepolarizer uye quarter-wave plate.
Pasina sampuli, maonero akasviba.Kana girazi rine main stress axis vertical ikaiswa, dema isochromatic fringe inooneka, inova nzvimbo ye zero stress.Musiyano wenzira yekuona unokonzerwa nekunetseka kukuru unogona kuyerwa neiyi nzira: tenderedza analyzer kusvika ruvara rwekukanganisa rwanyangarika (kana mwenje nzira yekudzosa kutsauka iri zero, ruvara rwakasviba).Musiyano weoptical path weyeyereso point inogona kuverengerwa nerotation angle.
Iyo formula ndeye
T: Musiyano wenzira yekuona yenzvimbo yakayerwa
λ: Wavelength yechiedza, 560nm
θ: Iyo yekutenderera kona yepolarization analyzer
Iyo rotational polarization nzira pachayo inogona chete kuyera iyo decimal kurongeka kukosha kweiyo optical nzira musiyano, uye iyo integer kurongeka nhamba yemipendero inotarwa mushure mekutemerwa kwezero-odha mipendero.Iko kukosha chaiko kweiyo optical path musiyano ihwerengedzo yenhamba yekurongeka kwezvikamu zvemipendero uye kukosha kwedecimal order ye optical path difference.
Iyo formula ndeye
n: Integer odha nhamba yemafringe
Simba: 2 mabhatiri
Kureba: 300 mm
Upamhi: 100 mm
Kureba: 93mm
Chiedza Chinobva: LED
Chisarudzo: 2 degree
Kuyera Ukobvu: 28 mm
