Difference between Theodolite and Total station?
Theodolite and Total Station are land surveying instruments used to get information about the plot under consideration for construction (buildings, bridges, roads, highways, dams, etc.)
A theodolite is basically a telescope with both a vertical and horizontal axis. The angle of each axis can be measured with fairly accurate precision as long as the operator knows how to use the theodolite and knows basic trigonometry. A theodolite needs two people to measure and align the angles.
THEODOLITE SURVEYING INTRODUCTION The Theodolite is one of the most precise surveying instruments and is suitable for measurement of horizontal as well as vertical angles. It has a powerful telescope and so it can be used also for distance sighting. Theodolites are of two types. Laboratory Manual SURVEYING-I DEPARTMENT OF CIVIL ENGINEERING. Department of Civil Engineering Survey-I SURVEYING –I List of Practical. Measurement of vertical angles with theodolite. ( One full size drawing sheet) 11) Determination of horizontal distance between two. Students will apply the knowledge gained from theoretical surveying to practice. Fieldworks covered in this manual include chain surveying, plane table surveying, theodolite traverse surveying, leveling, tacheometry, curve setting, house setting, just to name a few topics.
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A Theodolite specialises in angle measurements ( horizontal and vertical ) to the precision of degree ( new ones can precisely measure angles in seconds, 1/3600th of a degree ). Usually, it consists of a telescope mounted on two rotating disks or dials ( marked with degrees from 0 to 360 ). The telescope can be rotated horizontally as well as vertically for angle measurements.
Total station on the other hand, is a multipurpose surveying instrument based on electronic distance measurement (EDM). They can measure distance, angles, elevations with a high level of precision. The data collected by a total station can be transferred through a USB port into the computer where it can be viewed and analysed easily.
Theodolites can only measure angles, have a minimum range of about less than a kilometer and are less precise when compared to Total station, also less expensive than total station. Nowadays we have electronic theodolites which are an upgrade over the normal theodolite.
Total station on the other hand can measure different data rather than just angles. They have a minimum range of about 1 km and are very precise. They are hence obviously expensive when compared to theodolites.
Manual Of Civil Surveying Lab Practical Manual Of Civil Surveying Lab Getting the books practical manual of civil surveying lab now is not type of challenging means. You could not unaided going with ebook buildup or library or borrowing from your contacts to contact them. This is an agreed easy means to specifically get lead by on-line. Surveying Lab-I Manual 10 Ranging rods are used to range some intermediate points in the survey line. The length of the ranging rod is either 2m or 3m. They are shod at bottom with a heavy iron point.
A total station incorporates a theodolites functions into it’s programming, measuring angles and using an electronic distance meter. Total stations are usually superior to theodolites given their digital integration and more consistent precision.
They also can be purchased with a robotic ability, that reduces the number of operators needed, to one. Total stations (both robotic and non-robotic) are more expensive than theodolites, usually much more so, as well as requiring more training to use. These are the difference between theodolite and total station.
Read More: Profile and longitudinal leveling of theodolite?
FEATURES & BENEFITS
- Four models to choose from: NE-100/101/102/103
- Accurate, affordable, easy to use
- Ergonomic keypad
- One-touch function keys
- Large, backlit LCD display
- NE-100/101 models are water-resistant
- NE-102/103 models are waterproof
- 5″, 7″ and 10″ accuracies available
OVERVIEW
Designed for general construction and survey applications, Nikon NE-100 Series electronic digital theodolites give you accurate measurements in an affordable, easy-to-use platform. Each of the four models has an ergonomic keypad with one-touch keys for all functions, and a large backlit LCD display helps you work productively in the field.
Theodolite Surveying Pdf
You can instantly convert vertical angles to percent of grade, reset the horizontal angle to zero and lock the horizontal angle displayed on the LCD while you reposition or repeat a measurement. Angle accuracies differ between the models. The NE-100 offers 10″ angle accuracy, while the NE-101 offers 7″. Both the NE-102 and 103 models offer 5″ angle accuracy with the NE-103 featuring vertical axis compensation NE-102 and NE-103 also have a rear display and keypad.
NE-100 series theodolites feature five easy-to-use, one-touch keys: four to perform all common functions and a fifth to control the backlit LCD display and reticle illumination. NE-100 Series theodolites feature a built-in reticle illuminator and backlit LCD display that allow you to work inside buildings as well as in tunnels, mines and other environments with little or no light. These features also come in handy during low light conditions outdoors, such as near dawn or dusk.
Unlike other instruments that require specialized batteries, NE-100 Series theodolites use six standard AA batteries. What’s more, those batteries can power all models for about 48 hours. A three-level bar graph on the LCD screen displays remaining battery power.
With the Nikon NE-100 Series theodolite models, you can count on reliable performance in tough conditions. The NE-100/101 models have an IP54 rating, meaning water can splash on them from any direction with no harmful effects. Nikon NE-102/103 models have a higher rating of IP56 which means they’re waterproof and dustproof.
Theodolite Surveying Lab Manual For Diploma In Civil Engineering
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