A theodolite is a measuring tool, specifically designed to work with angles. Used by engineers to aid in proper building techniques, theodolites making repeating angles much easier than standard measuring methods. These devices ensure that angles make a safe and accurate structure. Another tool that performs similar functions is a transit. The theodolite, however, has many advantages over the transit.
There are many types of theodolites. though there's only one standard transit. The repeating theodolite has an accuracy advantage by utilising averaging. This design makes the measurement multiple times from two separate points to determine the angle. It then takes the average of the readings to determine the most accurate angle between the two points. A standard transit is capable of only taking measurements. You can hand average by measuring multiple times, but the theodolite does all of this for you.
Electronic Digital Theodolite
An electronic digital theodolite automatically reads horizontal and vertical angles, eliminating the manual reading of scales on graduated circles, removing the possibility of human error. This device has many advantages, including the speed it obtains and processes information and you need fewer instruments to make the same readings.
Compact and Light
A theodolite is also much more compact and light. This makes it easier to transport not only from job to job, but also to move around to make measurements. If you have extensive measuring to do, this can significantly cut the time it takes to complete a job. When working with angles, the ease of moving the machine can affect the outcome of the measurements. This also adds to the accuracy of the machine.
An electronic digital theodolite can be combined with an electronic distance measurement instrument. This lets the combined machine automatically record angles and slope distance from just one set-up. The slope distances can then be instantly converted to horizontal and vertical components.
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