TRẮC ĐỊA ĐẠI CƯƠNG
Bộ môn Địa Tin Học
2
Phần 2
◼Đo góc
◼Đo khoảng cách
◼Đo chênh cao
◼Đo chi tiết
◼Lưới khống chế
3
ĐO GÓC
◼Khái niệm (góc bằng, góc đứng, góc thiên
đỉnh)
◼Thiết bị đo góc: máy kinh vĩ
◼Phương pháp đo góc (Quy trình đo góc
bằng, sai số đo góc)
4
Khái niệm
•Góc bằng (): góc hợp bởi
hình chiếu của 2 hướng ngắm
lên mp nằm ngang
•Góc đứng (V): góc hợp bởi
hướng ngắm và hình chiếu
của nó lên mp nằm ngang
– Góc đứng V (-900≤ V ≤ 900)
–Góc thiên đỉnh Z= 900- V
5
Khái niệm
00< 3600
V + Z = 900
![Bài giảng Trắc địa cơ sở [mới nhất]](https://cdn.tailieu.vn/images/document/thumbnail/2025/20250729/vijiraiya/135x160/84_bai-giang-trac-dia-co-so.jpg)
![Bài giảng Trắc địa xây dựng [chuẩn nhất]](https://cdn.tailieu.vn/images/document/thumbnail/2026/20260310/hoaphuong0906/135x160/61031773283870.jpg)
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