Nā ʻano ʻike lewa
ʻO nā ʻano hana nui o ka ʻike ʻana i ka lewa: ke ʻano kani radar microwave, ke ʻano kani lewa a i ʻole ka rocket, ka balloon kani, ka ʻike mamao satellite, a me LIDAR. ʻAʻole hiki i ka radar microwave ke ʻike i nā ʻāpana liʻiliʻi no ka mea ʻo nā microwave i hoʻouna ʻia i ka lewa he mau nalu millimeter a centimeter paha, nona nā nalu lōʻihi a ʻaʻole hiki ke launa pū me nā ʻāpana liʻiliʻi, ʻoiai nā molekala like ʻole.
ʻOi aku ke kumukūʻai o nā hana kani lewa a me nā rocket a ʻaʻole hiki ke nānā ʻia no ka manawa lōʻihi. ʻOiai ʻoi aku ka haʻahaʻa o ke kumukūʻai o ke kani ʻana i nā baluna, ʻoi aku ka hopena o ka wikiwiki o ka makani. Hiki i ka ʻike mamao ukali ke ʻike i ka lewa honua ma kahi pae nui me ka hoʻohana ʻana i ka radar ma luna o ka moku, akā haʻahaʻa ka hoʻonā wahi. Hoʻohana ʻia ʻo Lidar e loaʻa nā palena lewa ma ka hoʻopuka ʻana i kahi kukuna laser i ka lewa a me ka hoʻohana ʻana i ka launa pū ʻana (hoʻopuehu a me ka absorption) ma waena o nā molekala lewa a i ʻole aerosol a me ka laser.
Ma muli o ke kuhikuhi ikaika, ka nalu pōkole (nalu micron) a me ka laulā pulse haiki o ka laser, a me ke kiʻekiʻe o ka ʻike o ka photodetector (photomultiplier tube, single photon detector), hiki iā lidar ke hoʻokō i ka pololei kiʻekiʻe a me ka ʻike ʻana i ka hoʻonā spatial a me ka manawa kiʻekiʻe o nā palena lewa. Ma muli o kona pololei kiʻekiʻe, ka hoʻonā spatial a me ka manawa kiʻekiʻe a me ka nānā mau ʻana, ke ulu wikiwiki nei ʻo LIDAR i ka ʻike ʻana i nā aerosols lewa, nā ao, nā mea haumia ea, ka mahana lewa a me ka wikiwiki o ka makani.
Ua hōʻike ʻia nā ʻano Lidar ma ka papa ma lalo nei:
Nā ʻano ʻike lewa
ʻO nā ʻano hana nui o ka ʻike ʻana i ka lewa: ke ʻano kani radar microwave, ke ʻano kani lewa a i ʻole ka rocket, ka balloon kani, ka ʻike mamao satellite, a me LIDAR. ʻAʻole hiki i ka radar microwave ke ʻike i nā ʻāpana liʻiliʻi no ka mea ʻo nā microwave i hoʻouna ʻia i ka lewa he mau nalu millimeter a centimeter paha, nona nā nalu lōʻihi a ʻaʻole hiki ke launa pū me nā ʻāpana liʻiliʻi, ʻoiai nā molekala like ʻole.
ʻOi aku ke kumukūʻai o nā hana kani lewa a me nā rocket a ʻaʻole hiki ke nānā ʻia no ka manawa lōʻihi. ʻOiai ʻoi aku ka haʻahaʻa o ke kumukūʻai o ke kani ʻana i nā baluna, ʻoi aku ka hopena o ka wikiwiki o ka makani. Hiki i ka ʻike mamao ukali ke ʻike i ka lewa honua ma kahi pae nui me ka hoʻohana ʻana i ka radar ma luna o ka moku, akā haʻahaʻa ka hoʻonā wahi. Hoʻohana ʻia ʻo Lidar e loaʻa nā palena lewa ma ka hoʻopuka ʻana i kahi kukuna laser i ka lewa a me ka hoʻohana ʻana i ka launa pū ʻana (hoʻopuehu a me ka absorption) ma waena o nā molekala lewa a i ʻole aerosol a me ka laser.
Ma muli o ke kuhikuhi ikaika, ka nalu pōkole (nalu micron) a me ka laulā pulse haiki o ka laser, a me ke kiʻekiʻe o ka ʻike o ka photodetector (photomultiplier tube, single photon detector), hiki iā lidar ke hoʻokō i ka pololei kiʻekiʻe a me ka ʻike ʻana i ka hoʻonā spatial a me ka manawa kiʻekiʻe o nā palena lewa. Ma muli o kona pololei kiʻekiʻe, ka hoʻonā spatial a me ka manawa kiʻekiʻe a me ka nānā mau ʻana, ke ulu wikiwiki nei ʻo LIDAR i ka ʻike ʻana i nā aerosols lewa, nā ao, nā mea haumia ea, ka mahana lewa a me ka wikiwiki o ka makani.
Kiʻikuhi hoʻolālā o ke kumumanaʻo o ka radar ana ao
Papa ao: kahi papa ao e lana ana i ka lewa; Mālamalama i hoʻopuka ʻia: kahi kukuna collimated o kahi nalu kikoʻī; Echo: ka hōʻailona hoʻopuehu hope i hana ʻia ma hope o ka hala ʻana o ka hoʻokuʻu ʻana ma o ka papa ao; Kumu aniani: ka ʻili like o ka ʻōnaehana telescope; Mea ʻike: ka mea photoelectric i hoʻohana ʻia e loaʻa i ka hōʻailona echo nāwaliwali.
ʻO ke ʻano hana o ka ʻōnaehana radar ana ao
Nā ʻōkuhi loea nui o Lumispot Tech o ke ana ʻana o ke ao ʻo Lidar
Ke Kiʻi o ka Huahana
Noi
Kiʻikuhi Kūlana Hana o nā Huahana
Ka manawa hoʻouna: Mei-09-2023