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Jonathan Sisson invented the theodolite, which measures both horizontal and vertical angles, in 1720, according to the Alberta Land Surveyor's Association. This instrument resembles a mounted telescope, and a user can adjust the height of the platform so his eyes are level with the ocular lens.
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What does a theodolite measure?
ROAD
What occupation would a person have who used a theodolite?
It would be Surveyors :)
How do you use a theodolite?
Process of Measuring Horizontal Angles Using a Theodolite 1. Setting up the Theodolite: This includes mounting the theodolite on a tripod and making sure it is comfortable for the user. 2. Unlock the upper horizontal clamp. 3. Rotate the theodolite until the arrow in the upper or lower rough sight points to the feature of interest and lock the clamp. 4. Look through the main eyepiece and use the upper horizontal adjuster to align the vertical lines on the feature of interest. 5. The reading is taken by looking through the small eyepiece. Using the minutes and seconds adjuster set the one of the degrees on the horizontal scale so the single vertical line on the bottom scale is between the double vertical lines under the selected degree. 6. The reading is the degree which has been aligned and the minutes and seconds read from the right hand scale and is the horizontal angle from the reference line. Process of Measuring Vertical Angles Using a Theodolite Process of Measuring Vertical Angles 1. Setting up the Theodolite: This includes mounting the theodolite on a tripod and making sure it is comfortable for the user. 2. Unlock the vertical clamp and tilt the eyepiece until the point of interest is aligned on the horizontal lines. Lock the clamp in place. 3. Looking through the small eyepiece, use the minutes and seconds adjuster to align one of the degrees on the vertical scale with the double lines just below it. 4. The reading is the degree that has been aligned and the minutes and seconds is read from the right hand scale. 5. To complete the reading, it may be necessary to measure the distance from the theodolite to the point of interest. The above is al true, but doesn't discuss the practical uses of a theodolite. For example, if you want to know the height of the top of the gable on a house, you could use a theodolite. First, set up the theodolite (btw, I made one with a piece of copper tube, a protractor and a cheap wooden tripod) as noted above, make sure the ground is pretty level between the house and the theodolite, and then measure the distance from the vertical side of the house to the theodolite. (You may choose to move the theodolite so that the distance is the square of a whole number.) Then aim the scope (tube) at the upper-most point of the gable and note the degree of angle on the protractor. If you have pretty level ground between the theodolite and the house, the angle at the intersection of the side of the house and the ground should be 90 degrees. So, now we have two angles (the 90 degrees at the intersection of the side of the house and the ground, and whatever angle you recorded at the theodolite) and a side (the distance from the house to the theodolite). With this information, you can calculate the third angle and the other two sides, one of which will be the hypotenuse and the other will be -- tada! -- the final leg, which will tell you the height of the point you picked out at the top of the gable.
What are the permanent adjustments of a theodolite?
Most theodolites have no "permanent" adjustments, since they are used to measure angles, both horizontal and vertical.
What does temporary adjustment mean in a theodolite?
The set of operations those are required to be done on an instrument in order to make it ready for taking observation
Who is the father of Theodolite?
Father of Theodolite
What is the type of theodolite?
Transit and non-transit theodolite.
Advantages and disadvantages of theodolite?
advantage and disadvantage of theodolite
How do you spell theodolite light?
Theodolite light is the correct spelling
What is principle of theodolite?
principle of theodolite is based on the principle of trigonometry.
What is the list count of theodolite?
least count of theodolite is 1 second
Least count of theodolite?
5 mm is the least count of theodolite.
How do you set out a building using a theodolite?
A theodolite measures angles and axis needed for site surveying. The horizontal and vertical angles are measured using a theodolite. A theodolite is actually a mounted telescope used in building.
What is digital theodolite?
A theodolite that shows a digital rather than analogue display.
What is theodolite and parts of theodolite?
theodolite is a surveying instrument.It is is used for measure the horizontal & vertical angles also.parts of theodolite trivet,upper plate lower plate,plomb bob,telescope,vernierscale,leveling screw,tribrach,etc.,
What is the function of a theodolite?
theodolite are use in construction calculate the angle and horizantal distance and for fixed the point
How you change the face for taking angle in theodolite?
A theodolite is an instrument that is used in archaeoastronomy. To change the face for taking angle measurements when using a theodolite you must turn the telescope by 180 degrees.
