Mikroskop metalurgi Penggunaan pembesaran rendah
1. Menyelaraskan cahaya mikroskop metalurgi
Dengan tangan kiri, putar sekrup penyetel kasar untuk membuat laras lensa naik atau platform pembawa ke bawah, lalu putar konverter objektif untuk membuat lensa perbesaran rendah sejajar dengan platform pembawa melalui lubang cahaya (rotasi harus hati-hati untuk buat lensa objektif di atas kekurangan ukiran dan dasar gesper tetap), buka bukaan, putar sekrup pengangkat lensa kolektor, sehingga cermin kolektor di ujung atas bidang lensa sedikit lebih rendah dari ketinggian bidang platform pembawa, kedua mata pada saat yang sama, sambil menyesuaikan arah reflektor hingga bidang pandang cahayanya merata dan kecerahannya sedang.
2. Mikroskop metalografiPenempatan spesimen slide
Ambil benda uji dan letakkan pada wadah pembawa dengan sisi kaca penutup menghadap ke atas, pasang pada penekan, kemudian putar sekrup penekan dengan tangan agar benda uji sejajar dengan bagian tengah bukaan.
3. Mikroskop metalografiMenyesuaikan fokus
Putar sekrup penyetel kasar dengan tangan, buat lensa pembesaran rendah<6mm from the slide specimen (when adjusting the distance between the objective lens and the slide must be watched from the side, do not turn the coarse adjustment screw at the same time as observing with your eyes on the eyepiece to prevent the lens from colliding with the slide and causing damage), and then open your eyes at the same time, turn the coarse adjustment screw slowly by hand so that the lens rises or make the carrier table fall, when the object image in the field of view is viewed, then adjust the fine adjustment screw until a clear object image appears in the field of view. When the object image appears in the field of view, adjust the fine adjustment screw until a clear object image appears in the field of view. If the object image is not in the centre of the field of view, move the slide specimen up and down, left and right (Note: the direction of movement of the slide is opposite to the direction of movement of the observed object image). If the distance between the lens and the specimen slice has exceeded the working distance when adjusting the focal length and the object image is not seen, then it should be reopened strictly according to the above steps.
