Showing posts with label laser levels. Show all posts
Showing posts with label laser levels. Show all posts

Modern Survey Theodolites

Posted by Sate Ayam on Tuesday, July 14, 2009


in today's theodolites laser auto level and theodolites laser liner, the reading out of the horizontal and vertical circles is usually done electronically. the readout is done by a rotary encoder, which can be absolute, e.g. using gray codes, or incremental, using theodolite laser auto level and theodolites laser liner equidistant light and dark radial bands. in the latter case the circles spin rapidly, reducing angle measurement to electronic measurement of time differences. additionally, lately ccd sensors have been added to the focal plane of the telescope allowing both auto-targeting and the automated measurement of residual target offset. all this is implemented in embedded software.

also, many modern laser theodolite and theodolite level, costing up to $10,000 apiece, are equipped with integrated electro-optical distance measuring devices, generally infrared based, allowing the measurement in one go of complete three-dimensional vectors -- albeit in instrument-defined polar co-ordinates—which can then be transformed to a pre-existing co-ordinate system in the area by means of a sufficient number of control points. this technique laser theodolite and theodolite level is called a resection solution or free station position surveying and is widely used in mapping surveying. the instruments theodolite, "intelligent" level theodolite called self-registering tacheometers or "level theodolite total stations", perform the necessary operations, saving data into internal registering units, or into external data storage devices. typically, ruggedized laptops or pdas are used as data collectors for this purpose.

http://en.wikipedia.org/wiki/theodolite

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Interior Tools

Posted by gelasbagus on Monday, April 13, 2009

Hanging a picture using laser theodolite may seem like the simplest of all home improvement projects. While it is quite easy, there are factors like wall type and object weight that you need to consider before hammering away. If you’re a beginner or if you’ve hung pictures before but always done some in a hit or miss kind of manner, these tips using theodolite level will come in useful.

The first thing you need to do is purchase the right fasteners for your picture and your walls using laser level. The most common fasteners for hanging things are picture nails and hooks also liner laser. While these are the most common type of fastener, they are not the most appropriate or effective ones to use in all cases.

If you are going to hang anything on a concrete, stucco or brick wall, then you should not try to use a regular nail. A concrete screw will securely anchor your object and will prevent you from chipping the wall’s surface. If you use a nail and level laser in a concrete or stucco surface, you can end up removing chunks of the wall around the nail when hammering.

If your object is heavy, then you might want to insert a plastic anchor or molly bolt-for fastening and laser auto level into the hole to ensure that there is no damage to your wall. Make sure that you are using the right type of fastener for your wall surface using laser liner.

Once you’ve figured out the type of wall surface and the most appropriate laser theodolite fastener to use, you will need to decide on placement.

The first thing you want to decide is how high you want to hang the object by using theodolite level or laser level. The basic rule of thumb is to hang pictures so that the center of the picture is at eye level. Have someone hold a tape measure against the wall and then stand back and see what number is at your eye laser liner - that’s where the center of your picture should be.

Once you decide on the height on the wall, you need to measure the picture itself with laser auto level to determine the mounting height. You will then measure level theodolite from the bottom of the picture to the highest point of the hanging wire. You can then figure out the hanging height by subtracting half of the picture’s height and adding the difference of the eye-height level you measured before by theodolite laser.

Your measuring theodolite laser isn’t done yet though. You want to take that figure and measure that distance on the wall by level laser so you can make a mark where the bottom of the hook will hit using liner laser. After you have that vertical mark using level theodolite, you want to measure horizontally to ensure that your picture is in the center of the space. Next you will mark where the vertical and horizontal lines cross.

If you find (after hanging) that the picture is either too low or too high, you can adjust the wire on the back of the picture rather than making a new hole. If you are planning on hanging multiple pictures and/or objects on one wall, then you want to plan out your measurements very carefully. Start by holding up your pictures or laying them on the floor in the pattern you want. Measure the wall space and measure each picture to ensure that you have enough space. You want to make the vertical and horizontal marks for each picture rather than just guessing. It is often easier to offset the pictures when you estimate. If you do want all of the pictures even, then you need to use a level and be really exact in your measurements. A laser level can be useful in these types of situations.

Don’t be intimidated with all of these steps if this is your first time hanging a picture. Taking your time and doing all the prep work outlined above will ensure that your picture is centered, level, and really adds character to your space.

http://www.articlespot.info/

For more information, please check at Laser Auto Level ~ Laser Liner ~ Laser Theodolite ~ Theodolite Level ~ Laser Level ~ Liner Laser ~ Theodolite Laser ~ Level Laser ~ Level Theodolite and Laser Auto Level:Laser Liner – Laser Theodolite & Theodolite Level Jakarta in 88db.com

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