Kei te kiia hoki ko te photoelectric photoelectric encoder angular position sensor, he kohinga o te whatu, miihini me te hiko / hiko tere i roto i te whakaurutanga o te Koki mamati, ka tangohia e ia te hangarau photoelectric ka huri nga korero Koki ka huri ki nga tohu mamati, i muri i te hono atu ki te rorohiko me te taputapu whakaatu ka taea te mohio ki te inenga hihiri me te mana o te waa. Kei roto i te hangarau hangarau, te hangarau tukatuka tika, te hangarau hiko, me etahi atu, ko tana hononga hangarau e pa ana ki te mahi matawhānui o te encoder. Ka whakatauritea ki etahi atu puoro USES rite, he tino tika, he whanui ine ine, he iti te ruri, he maamaa te kounga, me nga painga o te mahi pono, ngawari ki te pupuri, e whakamahia nuitia ana i roto i te ac servo motopaika tere me te rapu waahi.
Ko te roopu HOPRIO he kaihanga ngaio o te kaiwhakahaere me nga motuka, i whakapumautia i te 2000. Te tari matua o te roopu i Changzhou City, Jiangsu Province.