Nivelir

Nivelir (az frals. niveler — ba­robar namudan, niveau — satkh); asbobi geodezist baroi nivelironidan va muayyan namudani samthoi gori­zontali hangomi korkhhi montajkuni. Beshtar Nivelirhoi optiki-mekhaniki mamul gashtaand, ki dar onho far­qi balandii du nuqta tavassuti shuoi (khati) vizirii gorizontali az rui takhtachahoi makhsusi dar nuqtahoi tadqiqshavavda guzoshtashuda muayyan karda meshavad. Qismhoi asosii Nivelir obtarozu (vaterpas) va gulbai binish meboshald.

Ba komplekti asbob takhtachahoi nevelironi niz mansuband. Nivelirhoi obtarozuashon ba gulbai binish vaslshu- da va Nivelirhoi obtarozuashon ba kor­pus vaslshuda mavjudand. Pesh az istifoda khati viziriro bo yorii obtarozu ba holati gorizontali meorand. Dar Nivelirhoi khati viziriashon khud az khud sozshavanda in kor ba tavri avtomati ijro meshavad. Baroi zud ba «nuqtai nuli» ovardani hubobchai obtarozu va baland bardoshtani sahehi Nivelirhoro bo vinti elevatsioni tamii mekunand. Nivelirho az rui darajoti daqiqashon favquddaqiq, daqiq va tekhniki meshavand. Bazan Nivelirhoi gidrostatikiro, ki dar onho khosiyati zarfhoi marbut istlifoda shudaand, niz kor mefarmoyand.