topography : apparatus > Instrument of surveying and mapping study



Classification details: spider ruler signal lamp electronic theodolite optical theodolite laser theodolite Geoplane laser level laser collimator analytical plotter metallic spring gravimeter absolute gravimeter kinetheodolite quartz spring gravimeter acoustic positioning system gyroscopic theodolite pentagon prism invar baseline wire gradiometer automatic level Roland balancer LED aperture a sextant box compass plane-table Parallax horizon water gauge Atomic Clock transit instrument theodolite surveyor's level geodimeter ranging IR-system pepperbox microwave distance-measuring system semiconductor laser Magnascan echo sounder ray filter laser range finder strain gauge pulsed laser finder micrometer eyepiece mircrometer gauge plummet electromagnetic distance measuring instrument moderator copying camera solid state laser light pen sea gravimeter plotter laser diode stereoplanigraph scriber stereocomparator More results...