Gudanar da damuwa na gilashi shine muhimmiyar hanyar haɗi a cikin tsarin samar da gilashi, kuma hanyar yin amfani da maganin zafi mai dacewa don sarrafa damuwa ya kasance sananne ga masu fasahar gilashi. Duk da haka, yadda za a auna ma'aunin gilashin daidai yake har yanzu yana ɗaya daga cikin matsaloli masu wuyar gaske waɗanda ke rikitar da yawancin masana'antun gilashin da masu fasaha, kuma ƙididdigar al'ada na al'ada ya zama mafi rashin dacewa ga ingancin kayan gilashin a cikin al'ummar yau. Wannan labarin ya gabatar da hanyoyin auna damuwa da aka saba amfani da su daki-daki, da fatan ya zama taimako da fadakarwa ga masana'antar gilashi:
1. Tushen ka'idar gano danniya:
1.1 Hasken wuta
Sanannen abu ne cewa hasken wutan lantarki ne wanda ke girgiza ta hanyar da ta dace daidai da alkiblar gaba, tana kadawa a kan dukkan filaye masu girgiza daidai da alkiblar gaba. Idan an gabatar da tacewar polarization wanda kawai ke ba da damar wani yanki na girgiza don wucewa ta hanyar haske, za a iya samun hasken polarized, wanda ake magana da shi azaman hasken wuta, kuma kayan aikin gani da aka yi bisa ga halayen gani shine polarizer (Polariscope Strain Viewer).YYPL03 Polariscope Viewer
1.2 Haɗin kai
Gilashin isotropic ne kuma yana da fihirisar refractive iri ɗaya a duk kwatance. Idan akwai danniya a cikin gilashin, an lalata abubuwan isotropic, yana haifar da index refractive don canzawa, kuma maƙasudin mahimmanci na manyan kwatancen damuwa guda biyu ba su kasance iri ɗaya ba, wato, haifar da birefringence.
1.3 Bambancin hanyar gani
Lokacin da hasken wuta ya ratsa ta cikin gilashin kauri mai kauri t, hasken hasken ya rabe zuwa sassa biyu masu girgiza a cikin x da y kwatancen damuwa, bi da bi. Idan vx da vy su ne saurin abubuwan vector guda biyu bi da bi, to, lokacin da ake buƙata don wucewa ta cikin gilashin shine t/vx da t/vy bi da bi, kuma abubuwan biyu ba su daidaita ba, to akwai bambancin hanyar gani δ
Lokacin aikawa: Agusta-31-2023