Pehea ka huina R o ka paipu huinahalike i hoakakaia ma ka hae aupuni?

ʻO ka huina R i loko o ka paipu huinahā, ʻo ia ke arc hoʻololi ma ka hui ʻana o nā mokulele ʻelua, ʻo ia hoʻi ka hapalua anawaena o ka laina waena o ka ʻae ʻae ʻia R. ʻO ka waiwai o ka curved arc R he 1.5 ~ 2.0 mau manawa o ke anawaena paipu. Hoʻoholo ʻia ka nui o ka huina R e like me ka mānoanoa o ka pā o ka paipu huinahā. Hoʻokaʻawale ʻia ka ʻaoʻao R i ka ʻaoʻao R kūloko a me ka ʻaoʻao R waho. ʻO ka R i loko maʻamau he 1.5 ~ 2 manawa ka mānoanoa o ka pā. Hiki ke hana ʻia nā paipu kila square me nā kihi R like ʻole e like me nā koi o ka mea hoʻohana.
No ka la'ana, no ka paipu kila huinahalike me ka poepoe arc R, A=1.0MM, diagonal=1.15MM, pehea oe e ike ai i ka huina R? Ina he paipu kila huinahalike me ke arc, ua like anei ke ano o ka helu? He A me ka laula o B ka loa o ka huinahalike, he diagonal o C, a ua like ka radius o na huina kihi eha R. E helu i ka nui o R ma ke kumu hoohalike penei: (C/2-R) ^ 2=(A/2-R) ^ 2+(B/2-R) ^ 2 C ^ 2/4-CR+R ^ 2 =A ^ 2/4-AR+R ^ 2+B ^ 2/4-BR+R ^ 2 4R ^ 2-4 (A+BC) R+(A ^ 2+B ^ 2-C ^ 2)=0.
Pono e ho'okūpa'a 'ia ma 'ane'i 'a'ole pili ka huina R o ka paipu 'ao'ao ha'aha'a i ke arc, akā, 'o ka huina waena. E pili ana ka arc i ka mahele ma ke anapuni, a o ka huina komo o ka laina mawaena o na welau elua o ke arc a me ke kikowaena, oia ka huina waena. No ka mea, he 2 π R ke anapuni o ka poai, a he 2 π kona huina kiko waena, 2 π R/2 π=R ka loa arc e pili ana i ka huina kikowaena. No laila, loaʻa ka loa arc e pili ana i kekahi kihi waena a (unit radian)=aR. ʻO nā ʻano ana a me nā mea paahana no ka huina huinahā R koki me ka ana R a me ka projector. Hiki ke hoʻohana ʻia ke ana R no nā kiko mānoanoa, ka projector no nā kiko maikaʻi, a me ka CMM no nā koi kiʻekiʻe.