Questions? Call...800.591.8907

16 Years Serving Customers Like You. Buy With Confidence.

Engineering Supplies, Blueprint Storage, Measuring Tools, Surveying Equipment & More!

Transits, Theodolites, Total Stations, and Levels

This article is to help explain the differences in Transits, Theodolites, Total Stations, and Levels.

Transits
A transit is type of theodolite that features a telescope that can "flip over" which would allow easy back-sighting and doubling of angles for error reduction. Some transit instruments were capable of reading angles directly to thirty arc-seconds. In the last 50 years, transits have been known as a simple form of theodolite with less precision, lacking features such as scale magnification and mechanical meters. The importance of transits has been decreasing since more compact, accurate electronic theodolites have become widespread tools, but transits still find use as a lightweight tool for construction sites. Please note that some transits do not measure vertical angles.

Theodolites
A Theodolite is a instrument for measuring both horizontal and vertical angles, as used in triangulation networks. It is a tool used in the surveying and engineering industry, but theodolites have been adapted for other specialized purposes as well. A theodolite consists of a telescope mounted movably within two perpendicular axes, the horizontal or trunnion axis, and the vertical axis. When the telescope is pointed at a desired object, the angle of each of these axes can be measured with great precision, typically on the scale of arcseconds. The measurements are typically recorded by hand as they are not recorded by a computer or data collector.

Total Stations
A total station is an optical instrument used in modern surveying. It is a combination of an electronic theodolite (transit), an electronic distance measuring device (EDM) and software running on an external computer, such as a laptop or data collector.

Levels
The builder's level is often mistaken for a transit, but is actually a type of inclinometer. It measures neither horizontal nor vertical angles. It simply combines a bubble level and telescope which allows the user to visually establish a level line of sight along a plane.



Copyright 2006 EngineerSupply

Factory-Authorized Dealer For The Most Trusted Brands In The Industry

Crain Grade Rods Dunham and Morrow Magnetic Ferro Locators Bosch Tools and Measuring Equipment Premium Brand Blueprint Stands, Clamps, and Racks CST Berger Surveying Equipment AGL Laser Levels and Pipe Lasers Alvin Drafting and Art Products Dietzgen Paper and Media Mayline Office Products, Cabinets, and Blueprint Stands Dutch Hill Surveyors Tripods Aervoe Inverted Spray Paint Elan Field Books and Engineering Log Books Futtura Surveyors Equipment and Instruments Artograph Tracing Projectors and Products Alumicolor Scales and T Squares Neolt Large Paper Trimmers Advanced Organizing Systems Blueprint Storage Boxes and Systems Schonstedt Underground Location Equipment Seco Land Surveying Equipment and Products Doc Box Permit Holders and Boxes DuraWheel Distance Measuring Wheels Johnson Level Tools and Equipment Keson Measuring Wheels and Measuring Tapes SitePro Surveying Supplies Subsurface Instruments Underground Utility Locators Calculated Industries Construction Calculators and Tools LaserLine Cut and Fill Grade Rods Agatec Laser Levels Ulrich Plan File Cabinets Safco Office Furniture and Products RotaTrim Rotary Paper Trimmers Topcon Rotary Laser Levels and Detectors Dahle Paper Trimmers and Shredders
View All Brands

Join Today and we'll send you a coupon to use on your first order!

Please Wait... processing