1. Ko te hopu i te taiepa diaphragm hukihuki he hanga kaha-nui, me te kaha katia katia kaha, he painga ki te hanga i te taiepa diaphragm i roto i te uaua matatini; tere tere o te miihini awhiowhio he tere, he wa poto hoki mo te hanganga he poto.
2. Ko te inclinometer, ko te whakatikatika ahopou me nga taputapu whakatikatika i nga taha e eke ana ka taea te whakakii i te omnibearing mo te mokamoka mokamoka me te painga pai ki te whakatika i te hanganga o te paparanga oneone maeneene.
3. Te punaha mehua matatau: kua whakauruhia e te waipiro waipiro waipiro te paapene ruri rorohiko paanui-mata, te tuhi me te whakaatu i te hohonu o te keri me te hihiko o te peere hopu waipēhi. Ko tona hohonu, ko te tere tere me te waahi o te x, te ahunga Y ka taea te whakaatu tika ki te mata, me tana tohu tohu whanganga ka tae ki te 0.01, ka taea te penapena me te taarua me te whakaputa aunoa ma te rorohiko.